ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
   4import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
   5import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
   6import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
   7import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
   8import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
   9
  10import android.Manifest;
  11import android.annotation.SuppressLint;
  12import android.app.Activity;
  13import android.app.Fragment;
  14import android.app.FragmentManager;
  15import android.app.PendingIntent;
  16import android.content.ActivityNotFoundException;
  17import android.content.Context;
  18import android.content.DialogInterface;
  19import android.content.Intent;
  20import android.content.IntentSender.SendIntentException;
  21import android.content.SharedPreferences;
  22import android.content.pm.PackageManager;
  23import android.net.Uri;
  24import android.os.Build;
  25import android.os.Bundle;
  26import android.os.Handler;
  27import android.os.SystemClock;
  28import android.preference.PreferenceManager;
  29import android.provider.MediaStore;
  30import android.text.Editable;
  31import android.text.TextUtils;
  32import android.util.Log;
  33import android.view.ContextMenu;
  34import android.view.ContextMenu.ContextMenuInfo;
  35import android.view.Gravity;
  36import android.view.LayoutInflater;
  37import android.view.Menu;
  38import android.view.MenuInflater;
  39import android.view.MenuItem;
  40import android.view.MotionEvent;
  41import android.view.View;
  42import android.view.View.OnClickListener;
  43import android.view.ViewGroup;
  44import android.view.inputmethod.EditorInfo;
  45import android.view.inputmethod.InputMethodManager;
  46import android.widget.AbsListView;
  47import android.widget.AbsListView.OnScrollListener;
  48import android.widget.AdapterView;
  49import android.widget.AdapterView.AdapterContextMenuInfo;
  50import android.widget.CheckBox;
  51import android.widget.ListView;
  52import android.widget.PopupMenu;
  53import android.widget.TextView.OnEditorActionListener;
  54import android.widget.Toast;
  55
  56import androidx.annotation.IdRes;
  57import androidx.annotation.NonNull;
  58import androidx.annotation.Nullable;
  59import androidx.annotation.StringRes;
  60import androidx.appcompat.app.AlertDialog;
  61import androidx.core.view.inputmethod.InputConnectionCompat;
  62import androidx.core.view.inputmethod.InputContentInfoCompat;
  63import androidx.databinding.DataBindingUtil;
  64import androidx.viewpager.widget.PagerAdapter;
  65import androidx.viewpager.widget.ViewPager;
  66
  67import com.cheogram.android.BobTransfer;
  68
  69import com.google.common.base.Optional;
  70import com.google.common.collect.ImmutableList;
  71
  72import org.jetbrains.annotations.NotNull;
  73
  74import java.net.URISyntaxException;
  75import java.util.ArrayList;
  76import java.util.Arrays;
  77import java.util.Collection;
  78import java.util.Collections;
  79import java.util.HashSet;
  80import java.util.Iterator;
  81import java.util.List;
  82import java.util.Map;
  83import java.util.Set;
  84import java.util.UUID;
  85import java.util.concurrent.atomic.AtomicBoolean;
  86
  87import eu.siacs.conversations.Config;
  88import eu.siacs.conversations.R;
  89import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  90import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  91import eu.siacs.conversations.databinding.FragmentConversationBinding;
  92import eu.siacs.conversations.entities.Account;
  93import eu.siacs.conversations.entities.Blockable;
  94import eu.siacs.conversations.entities.Contact;
  95import eu.siacs.conversations.entities.Conversation;
  96import eu.siacs.conversations.entities.Conversational;
  97import eu.siacs.conversations.entities.DownloadableFile;
  98import eu.siacs.conversations.entities.Message;
  99import eu.siacs.conversations.entities.MucOptions;
 100import eu.siacs.conversations.entities.MucOptions.User;
 101import eu.siacs.conversations.entities.Presence;
 102import eu.siacs.conversations.entities.Presences;
 103import eu.siacs.conversations.entities.ReadByMarker;
 104import eu.siacs.conversations.entities.Transferable;
 105import eu.siacs.conversations.entities.TransferablePlaceholder;
 106import eu.siacs.conversations.http.HttpDownloadConnection;
 107import eu.siacs.conversations.persistance.FileBackend;
 108import eu.siacs.conversations.services.MessageArchiveService;
 109import eu.siacs.conversations.services.QuickConversationsService;
 110import eu.siacs.conversations.services.XmppConnectionService;
 111import eu.siacs.conversations.ui.adapter.CommandAdapter;
 112import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
 113import eu.siacs.conversations.ui.adapter.MessageAdapter;
 114import eu.siacs.conversations.ui.util.ActivityResult;
 115import eu.siacs.conversations.ui.util.Attachment;
 116import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
 117import eu.siacs.conversations.ui.util.DateSeparator;
 118import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
 119import eu.siacs.conversations.ui.util.ListViewUtils;
 120import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 121import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 122import eu.siacs.conversations.ui.util.PendingItem;
 123import eu.siacs.conversations.ui.util.PresenceSelector;
 124import eu.siacs.conversations.ui.util.ScrollState;
 125import eu.siacs.conversations.ui.util.SendButtonAction;
 126import eu.siacs.conversations.ui.util.SendButtonTool;
 127import eu.siacs.conversations.ui.util.ShareUtil;
 128import eu.siacs.conversations.ui.util.ViewUtil;
 129import eu.siacs.conversations.ui.widget.EditMessage;
 130import eu.siacs.conversations.utils.AccountUtils;
 131import eu.siacs.conversations.utils.Compatibility;
 132import eu.siacs.conversations.utils.GeoHelper;
 133import eu.siacs.conversations.utils.MessageUtils;
 134import eu.siacs.conversations.utils.NickValidityChecker;
 135import eu.siacs.conversations.utils.Patterns;
 136import eu.siacs.conversations.utils.PermissionUtils;
 137import eu.siacs.conversations.utils.QuickLoader;
 138import eu.siacs.conversations.utils.StylingHelper;
 139import eu.siacs.conversations.utils.TimeFrameUtils;
 140import eu.siacs.conversations.utils.UIHelper;
 141import eu.siacs.conversations.xml.Element;
 142import eu.siacs.conversations.xml.Namespace;
 143import eu.siacs.conversations.xmpp.Jid;
 144import eu.siacs.conversations.xmpp.XmppConnection;
 145import eu.siacs.conversations.xmpp.chatstate.ChatState;
 146import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 147import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 148import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 149import eu.siacs.conversations.xmpp.jingle.Media;
 150import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 151import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 152import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 153
 154public class ConversationFragment extends XmppFragment
 155        implements EditMessage.KeyboardListener,
 156                MessageAdapter.OnContactPictureLongClicked,
 157                MessageAdapter.OnContactPictureClicked {
 158
 159    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 160    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 161    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 162    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 163    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 164    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 165    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 166    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 167    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 168    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 169    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 170    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 171    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 172    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 173    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 174    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 175    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 176
 177    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 178    public static final String STATE_CONVERSATION_UUID =
 179            ConversationFragment.class.getName() + ".uuid";
 180    public static final String STATE_SCROLL_POSITION =
 181            ConversationFragment.class.getName() + ".scroll_position";
 182    public static final String STATE_PHOTO_URI =
 183            ConversationFragment.class.getName() + ".media_previews";
 184    public static final String STATE_MEDIA_PREVIEWS =
 185            ConversationFragment.class.getName() + ".take_photo_uri";
 186    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 187
 188    private final List<Message> messageList = new ArrayList<>();
 189    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 190    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 191    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 192    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 193    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 194    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 195    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 196    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 197    public Uri mPendingEditorContent = null;
 198    protected MessageAdapter messageListAdapter;
 199    protected CommandAdapter commandAdapter;
 200    private MediaPreviewAdapter mediaPreviewAdapter;
 201    private String lastMessageUuid = null;
 202    private Conversation conversation;
 203    private FragmentConversationBinding binding;
 204    private Toast messageLoaderToast;
 205    private ConversationsActivity activity;
 206    private boolean reInitRequiredOnStart = true;
 207    private final OnClickListener clickToMuc =
 208            new OnClickListener() {
 209
 210                @Override
 211                public void onClick(View v) {
 212                    ConferenceDetailsActivity.open(getActivity(), conversation);
 213                }
 214            };
 215    private final OnClickListener leaveMuc =
 216            new OnClickListener() {
 217
 218                @Override
 219                public void onClick(View v) {
 220                    activity.xmppConnectionService.archiveConversation(conversation);
 221                }
 222            };
 223    private final OnClickListener joinMuc =
 224            new OnClickListener() {
 225
 226                @Override
 227                public void onClick(View v) {
 228                    activity.xmppConnectionService.joinMuc(conversation);
 229                }
 230            };
 231
 232    private final OnClickListener acceptJoin =
 233            new OnClickListener() {
 234                @Override
 235                public void onClick(View v) {
 236                    conversation.setAttribute("accept_non_anonymous", true);
 237                    activity.xmppConnectionService.updateConversation(conversation);
 238                    activity.xmppConnectionService.joinMuc(conversation);
 239                }
 240            };
 241
 242    private final OnClickListener enterPassword =
 243            new OnClickListener() {
 244
 245                @Override
 246                public void onClick(View v) {
 247                    MucOptions muc = conversation.getMucOptions();
 248                    String password = muc.getPassword();
 249                    if (password == null) {
 250                        password = "";
 251                    }
 252                    activity.quickPasswordEdit(
 253                            password,
 254                            value -> {
 255                                activity.xmppConnectionService.providePasswordForMuc(
 256                                        conversation, value);
 257                                return null;
 258                            });
 259                }
 260            };
 261    private final OnScrollListener mOnScrollListener =
 262            new OnScrollListener() {
 263
 264                @Override
 265                public void onScrollStateChanged(AbsListView view, int scrollState) {
 266                    if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 267                        fireReadEvent();
 268                    }
 269                }
 270
 271                @Override
 272                public void onScroll(
 273                        final AbsListView view,
 274                        int firstVisibleItem,
 275                        int visibleItemCount,
 276                        int totalItemCount) {
 277                    toggleScrollDownButton(view);
 278                    synchronized (ConversationFragment.this.messageList) {
 279                        if (firstVisibleItem < 5
 280                                && conversation != null
 281                                && conversation.messagesLoaded.compareAndSet(true, false)
 282                                && messageList.size() > 0) {
 283                            long timestamp;
 284                            if (messageList.get(0).getType() == Message.TYPE_STATUS
 285                                    && messageList.size() >= 2) {
 286                                timestamp = messageList.get(1).getTimeSent();
 287                            } else {
 288                                timestamp = messageList.get(0).getTimeSent();
 289                            }
 290                            activity.xmppConnectionService.loadMoreMessages(
 291                                    conversation,
 292                                    timestamp,
 293                                    new XmppConnectionService.OnMoreMessagesLoaded() {
 294                                        @Override
 295                                        public void onMoreMessagesLoaded(
 296                                                final int c, final Conversation conversation) {
 297                                            if (ConversationFragment.this.conversation
 298                                                    != conversation) {
 299                                                conversation.messagesLoaded.set(true);
 300                                                return;
 301                                            }
 302                                            runOnUiThread(
 303                                                    () -> {
 304                                                        synchronized (messageList) {
 305                                                            final int oldPosition =
 306                                                                    binding.messagesView
 307                                                                            .getFirstVisiblePosition();
 308                                                            Message message = null;
 309                                                            int childPos;
 310                                                            for (childPos = 0;
 311                                                                    childPos + oldPosition
 312                                                                            < messageList.size();
 313                                                                    ++childPos) {
 314                                                                message =
 315                                                                        messageList.get(
 316                                                                                oldPosition
 317                                                                                        + childPos);
 318                                                                if (message.getType()
 319                                                                        != Message.TYPE_STATUS) {
 320                                                                    break;
 321                                                                }
 322                                                            }
 323                                                            final String uuid =
 324                                                                    message != null
 325                                                                            ? message.getUuid()
 326                                                                            : null;
 327                                                            View v =
 328                                                                    binding.messagesView.getChildAt(
 329                                                                            childPos);
 330                                                            final int pxOffset =
 331                                                                    (v == null) ? 0 : v.getTop();
 332                                                            ConversationFragment.this.conversation
 333                                                                    .populateWithMessages(
 334                                                                            ConversationFragment
 335                                                                                    .this
 336                                                                                    .messageList);
 337                                                            try {
 338                                                                updateStatusMessages();
 339                                                            } catch (IllegalStateException e) {
 340                                                                Log.d(
 341                                                                        Config.LOGTAG,
 342                                                                        "caught illegal state exception while updating status messages");
 343                                                            }
 344                                                            messageListAdapter
 345                                                                    .notifyDataSetChanged();
 346                                                            int pos =
 347                                                                    Math.max(
 348                                                                            getIndexOf(
 349                                                                                    uuid,
 350                                                                                    messageList),
 351                                                                            0);
 352                                                            binding.messagesView
 353                                                                    .setSelectionFromTop(
 354                                                                            pos, pxOffset);
 355                                                            if (messageLoaderToast != null) {
 356                                                                messageLoaderToast.cancel();
 357                                                            }
 358                                                            conversation.messagesLoaded.set(true);
 359                                                        }
 360                                                    });
 361                                        }
 362
 363                                        @Override
 364                                        public void informUser(final int resId) {
 365
 366                                            runOnUiThread(
 367                                                    () -> {
 368                                                        if (messageLoaderToast != null) {
 369                                                            messageLoaderToast.cancel();
 370                                                        }
 371                                                        if (ConversationFragment.this.conversation
 372                                                                != conversation) {
 373                                                            return;
 374                                                        }
 375                                                        messageLoaderToast =
 376                                                                Toast.makeText(
 377                                                                        view.getContext(),
 378                                                                        resId,
 379                                                                        Toast.LENGTH_LONG);
 380                                                        messageLoaderToast.show();
 381                                                    });
 382                                        }
 383                                    });
 384                        }
 385                    }
 386                }
 387            };
 388    private final EditMessage.OnCommitContentListener mEditorContentListener =
 389            new EditMessage.OnCommitContentListener() {
 390                @Override
 391                public boolean onCommitContent(
 392                        InputContentInfoCompat inputContentInfo,
 393                        int flags,
 394                        Bundle opts,
 395                        String[] contentMimeTypes) {
 396                    // try to get permission to read the image, if applicable
 397                    if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION)
 398                            != 0) {
 399                        try {
 400                            inputContentInfo.requestPermission();
 401                        } catch (Exception e) {
 402                            Log.e(
 403                                    Config.LOGTAG,
 404                                    "InputContentInfoCompat#requestPermission() failed.",
 405                                    e);
 406                            Toast.makeText(
 407                                            getActivity(),
 408                                            activity.getString(
 409                                                    R.string.no_permission_to_access_x,
 410                                                    inputContentInfo.getDescription()),
 411                                            Toast.LENGTH_LONG)
 412                                    .show();
 413                            return false;
 414                        }
 415                    }
 416                    if (hasPermissions(
 417                            REQUEST_ADD_EDITOR_CONTENT,
 418                            Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 419                        attachEditorContentToConversation(inputContentInfo.getContentUri());
 420                    } else {
 421                        mPendingEditorContent = inputContentInfo.getContentUri();
 422                    }
 423                    return true;
 424                }
 425            };
 426    private Message selectedMessage;
 427    private final OnClickListener mEnableAccountListener =
 428            new OnClickListener() {
 429                @Override
 430                public void onClick(View v) {
 431                    final Account account = conversation == null ? null : conversation.getAccount();
 432                    if (account != null) {
 433                        account.setOption(Account.OPTION_DISABLED, false);
 434                        activity.xmppConnectionService.updateAccount(account);
 435                    }
 436                }
 437            };
 438    private final OnClickListener mUnblockClickListener =
 439            new OnClickListener() {
 440                @Override
 441                public void onClick(final View v) {
 442                    v.post(() -> v.setVisibility(View.INVISIBLE));
 443                    if (conversation.isDomainBlocked()) {
 444                        BlockContactDialog.show(activity, conversation);
 445                    } else {
 446                        unblockConversation(conversation);
 447                    }
 448                }
 449            };
 450    private final OnClickListener mBlockClickListener = this::showBlockSubmenu;
 451    private final OnClickListener mAddBackClickListener =
 452            new OnClickListener() {
 453
 454                @Override
 455                public void onClick(View v) {
 456                    final Contact contact = conversation == null ? null : conversation.getContact();
 457                    if (contact != null) {
 458                        activity.xmppConnectionService.createContact(contact, true);
 459                        activity.switchToContactDetails(contact);
 460                    }
 461                }
 462            };
 463    private final View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 464    private final OnClickListener mAllowPresenceSubscription =
 465            new OnClickListener() {
 466                @Override
 467                public void onClick(View v) {
 468                    final Contact contact = conversation == null ? null : conversation.getContact();
 469                    if (contact != null) {
 470                        activity.xmppConnectionService.sendPresencePacket(
 471                                contact.getAccount(),
 472                                activity.xmppConnectionService
 473                                        .getPresenceGenerator()
 474                                        .sendPresenceUpdatesTo(contact));
 475                        hideSnackbar();
 476                    }
 477                }
 478            };
 479    protected OnClickListener clickToDecryptListener =
 480            new OnClickListener() {
 481
 482                @Override
 483                public void onClick(View v) {
 484                    PendingIntent pendingIntent =
 485                            conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 486                    if (pendingIntent != null) {
 487                        try {
 488                            getActivity()
 489                                    .startIntentSenderForResult(
 490                                            pendingIntent.getIntentSender(),
 491                                            REQUEST_DECRYPT_PGP,
 492                                            null,
 493                                            0,
 494                                            0,
 495                                            0);
 496                        } catch (SendIntentException e) {
 497                            Toast.makeText(
 498                                            getActivity(),
 499                                            R.string.unable_to_connect_to_keychain,
 500                                            Toast.LENGTH_SHORT)
 501                                    .show();
 502                            conversation
 503                                    .getAccount()
 504                                    .getPgpDecryptionService()
 505                                    .continueDecryption(true);
 506                        }
 507                    }
 508                    updateSnackBar(conversation);
 509                }
 510            };
 511    private final AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 512    private final OnEditorActionListener mEditorActionListener =
 513            (v, actionId, event) -> {
 514                if (actionId == EditorInfo.IME_ACTION_SEND) {
 515                    InputMethodManager imm =
 516                            (InputMethodManager)
 517                                    activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 518                    if (imm != null && imm.isFullscreenMode()) {
 519                        imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 520                    }
 521                    sendMessage();
 522                    return true;
 523                } else {
 524                    return false;
 525                }
 526            };
 527    private final OnClickListener mScrollButtonListener =
 528            new OnClickListener() {
 529
 530                @Override
 531                public void onClick(View v) {
 532                    stopScrolling();
 533                    setSelection(binding.messagesView.getCount() - 1, true);
 534                }
 535            };
 536    private final OnClickListener mSendButtonListener =
 537            new OnClickListener() {
 538
 539                @Override
 540                public void onClick(View v) {
 541                    Object tag = v.getTag();
 542                    if (tag instanceof SendButtonAction) {
 543                        SendButtonAction action = (SendButtonAction) tag;
 544                        switch (action) {
 545                            case TAKE_PHOTO:
 546                            case RECORD_VIDEO:
 547                            case SEND_LOCATION:
 548                            case RECORD_VOICE:
 549                            case CHOOSE_PICTURE:
 550                                attachFile(action.toChoice());
 551                                break;
 552                            case CANCEL:
 553                                if (conversation != null) {
 554                                    if (conversation.setCorrectingMessage(null)) {
 555                                        binding.textinput.setText("");
 556                                        binding.textinput.append(conversation.getDraftMessage());
 557                                        conversation.setDraftMessage(null);
 558                                    } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 559                                        conversation.setNextCounterpart(null);
 560                                        binding.textinput.setText("");
 561                                    } else {
 562                                        binding.textinput.setText("");
 563                                    }
 564                                    updateChatMsgHint();
 565                                    updateSendButton();
 566                                    updateEditablity();
 567                                }
 568                                break;
 569                            default:
 570                                sendMessage();
 571                        }
 572                    } else {
 573                        sendMessage();
 574                    }
 575                }
 576            };
 577    private int completionIndex = 0;
 578    private int lastCompletionLength = 0;
 579    private String incomplete;
 580    private int lastCompletionCursor;
 581    private boolean firstWord = false;
 582    private Message mPendingDownloadableMessage;
 583
 584    private static ConversationFragment findConversationFragment(Activity activity) {
 585        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 586        if (fragment instanceof ConversationFragment) {
 587            return (ConversationFragment) fragment;
 588        }
 589        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 590        if (fragment instanceof ConversationFragment) {
 591            return (ConversationFragment) fragment;
 592        }
 593        return null;
 594    }
 595
 596    public static void startStopPending(Activity activity) {
 597        ConversationFragment fragment = findConversationFragment(activity);
 598        if (fragment != null) {
 599            fragment.messageListAdapter.startStopPending();
 600        }
 601    }
 602
 603    public static void downloadFile(Activity activity, Message message) {
 604        ConversationFragment fragment = findConversationFragment(activity);
 605        if (fragment != null) {
 606            fragment.startDownloadable(message);
 607        }
 608    }
 609
 610    public static void registerPendingMessage(Activity activity, Message message) {
 611        ConversationFragment fragment = findConversationFragment(activity);
 612        if (fragment != null) {
 613            fragment.pendingMessage.push(message);
 614        }
 615    }
 616
 617    public static void openPendingMessage(Activity activity) {
 618        ConversationFragment fragment = findConversationFragment(activity);
 619        if (fragment != null) {
 620            Message message = fragment.pendingMessage.pop();
 621            if (message != null) {
 622                fragment.messageListAdapter.openDownloadable(message);
 623            }
 624        }
 625    }
 626
 627    public static Conversation getConversation(Activity activity) {
 628        return getConversation(activity, R.id.secondary_fragment);
 629    }
 630
 631    private static Conversation getConversation(Activity activity, @IdRes int res) {
 632        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 633        if (fragment instanceof ConversationFragment) {
 634            return ((ConversationFragment) fragment).getConversation();
 635        } else {
 636            return null;
 637        }
 638    }
 639
 640    public static ConversationFragment get(Activity activity) {
 641        FragmentManager fragmentManager = activity.getFragmentManager();
 642        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 643        if (fragment instanceof ConversationFragment) {
 644            return (ConversationFragment) fragment;
 645        } else {
 646            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 647            return fragment instanceof ConversationFragment
 648                    ? (ConversationFragment) fragment
 649                    : null;
 650        }
 651    }
 652
 653    public static Conversation getConversationReliable(Activity activity) {
 654        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 655        if (conversation != null) {
 656            return conversation;
 657        }
 658        return getConversation(activity, R.id.main_fragment);
 659    }
 660
 661    private static boolean scrolledToBottom(AbsListView listView) {
 662        final int count = listView.getCount();
 663        if (count == 0) {
 664            return true;
 665        } else if (listView.getLastVisiblePosition() == count - 1) {
 666            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 667            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 668        } else {
 669            return false;
 670        }
 671    }
 672
 673    private void toggleScrollDownButton() {
 674        toggleScrollDownButton(binding.messagesView);
 675    }
 676
 677    private void toggleScrollDownButton(AbsListView listView) {
 678        if (conversation == null) {
 679            return;
 680        }
 681        if (scrolledToBottom(listView)) {
 682            lastMessageUuid = null;
 683            hideUnreadMessagesCount();
 684        } else {
 685            binding.scrollToBottomButton.setEnabled(true);
 686            binding.scrollToBottomButton.show();
 687            if (lastMessageUuid == null) {
 688                lastMessageUuid = conversation.getLatestMessage().getUuid();
 689            }
 690            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 691                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 692            }
 693        }
 694    }
 695
 696    private int getIndexOf(String uuid, List<Message> messages) {
 697        if (uuid == null) {
 698            return messages.size() - 1;
 699        }
 700        for (int i = 0; i < messages.size(); ++i) {
 701            if (uuid.equals(messages.get(i).getUuid())) {
 702                return i;
 703            } else {
 704                Message next = messages.get(i);
 705                while (next != null && next.wasMergedIntoPrevious()) {
 706                    if (uuid.equals(next.getUuid())) {
 707                        return i;
 708                    }
 709                    next = next.next();
 710                }
 711            }
 712        }
 713        return -1;
 714    }
 715
 716    private ScrollState getScrollPosition() {
 717        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 718        if (listView == null
 719                || listView.getCount() == 0
 720                || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 721            return null;
 722        } else {
 723            final int pos = listView.getFirstVisiblePosition();
 724            final View view = listView.getChildAt(0);
 725            if (view == null) {
 726                return null;
 727            } else {
 728                return new ScrollState(pos, view.getTop());
 729            }
 730        }
 731    }
 732
 733    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 734        if (scrollPosition != null) {
 735
 736            this.lastMessageUuid = lastMessageUuid;
 737            if (lastMessageUuid != null) {
 738                binding.unreadCountCustomView.setUnreadCount(
 739                        conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 740            }
 741            // TODO maybe this needs a 'post'
 742            this.binding.messagesView.setSelectionFromTop(
 743                    scrollPosition.position, scrollPosition.offset);
 744            toggleScrollDownButton();
 745        }
 746    }
 747
 748    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 749        if (conversation == null) {
 750            return;
 751        }
 752        activity.xmppConnectionService.attachLocationToConversation(
 753                conversation,
 754                uri,
 755                new UiCallback<Message>() {
 756
 757                    @Override
 758                    public void success(Message message) {}
 759
 760                    @Override
 761                    public void error(int errorCode, Message object) {
 762                        // TODO show possible pgp error
 763                    }
 764
 765                    @Override
 766                    public void userInputRequired(PendingIntent pi, Message object) {}
 767                });
 768    }
 769
 770    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 771        if (conversation == null) {
 772            return;
 773        }
 774        final Toast prepareFileToast =
 775                Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 776        prepareFileToast.show();
 777        activity.delegateUriPermissionsToService(uri);
 778        activity.xmppConnectionService.attachFileToConversation(
 779                conversation,
 780                uri,
 781                type,
 782                new UiInformableCallback<Message>() {
 783                    @Override
 784                    public void inform(final String text) {
 785                        hidePrepareFileToast(prepareFileToast);
 786                        runOnUiThread(() -> activity.replaceToast(text));
 787                    }
 788
 789                    @Override
 790                    public void success(Message message) {
 791                        runOnUiThread(() -> activity.hideToast());
 792                        hidePrepareFileToast(prepareFileToast);
 793                    }
 794
 795                    @Override
 796                    public void error(final int errorCode, Message message) {
 797                        hidePrepareFileToast(prepareFileToast);
 798                        runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 799                    }
 800
 801                    @Override
 802                    public void userInputRequired(PendingIntent pi, Message message) {
 803                        hidePrepareFileToast(prepareFileToast);
 804                    }
 805                });
 806    }
 807
 808    public void attachEditorContentToConversation(Uri uri) {
 809        mediaPreviewAdapter.addMediaPreviews(
 810                Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 811        toggleInputMethod();
 812    }
 813
 814    private void attachImageToConversation(Conversation conversation, Uri uri, String type) {
 815        if (conversation == null) {
 816            return;
 817        }
 818        final Toast prepareFileToast =
 819                Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 820        prepareFileToast.show();
 821        activity.delegateUriPermissionsToService(uri);
 822        activity.xmppConnectionService.attachImageToConversation(
 823                conversation,
 824                uri,
 825                type,
 826                new UiCallback<Message>() {
 827
 828                    @Override
 829                    public void userInputRequired(PendingIntent pi, Message object) {
 830                        hidePrepareFileToast(prepareFileToast);
 831                    }
 832
 833                    @Override
 834                    public void success(Message message) {
 835                        hidePrepareFileToast(prepareFileToast);
 836                    }
 837
 838                    @Override
 839                    public void error(final int error, final Message message) {
 840                        hidePrepareFileToast(prepareFileToast);
 841                        final ConversationsActivity activity = ConversationFragment.this.activity;
 842                        if (activity == null) {
 843                            return;
 844                        }
 845                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 846                    }
 847                });
 848    }
 849
 850    private void hidePrepareFileToast(final Toast prepareFileToast) {
 851        if (prepareFileToast != null && activity != null) {
 852            activity.runOnUiThread(prepareFileToast::cancel);
 853        }
 854    }
 855
 856    private void sendMessage() {
 857        if (mediaPreviewAdapter.hasAttachments()) {
 858            commitAttachments();
 859            return;
 860        }
 861        final Editable text = this.binding.textinput.getText();
 862        final String body = text == null ? "" : text.toString();
 863        final Conversation conversation = this.conversation;
 864        if (body.length() == 0 || conversation == null) {
 865            return;
 866        }
 867        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_TEXT)) {
 868            return;
 869        }
 870        final Message message;
 871        if (conversation.getCorrectingMessage() == null) {
 872            message = new Message(conversation, body, conversation.getNextEncryption());
 873            Message.configurePrivateMessage(message);
 874        } else {
 875            message = conversation.getCorrectingMessage();
 876            message.setBody(body);
 877            message.putEdited(message.getUuid(), message.getServerMsgId());
 878            message.setServerMsgId(null);
 879            message.setUuid(UUID.randomUUID().toString());
 880        }
 881        switch (conversation.getNextEncryption()) {
 882            case Message.ENCRYPTION_PGP:
 883                sendPgpMessage(message);
 884                break;
 885            default:
 886                sendMessage(message);
 887        }
 888    }
 889
 890    private boolean trustKeysIfNeeded(final Conversation conversation, final int requestCode) {
 891        return conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL
 892                && trustKeysIfNeeded(requestCode);
 893    }
 894
 895    protected boolean trustKeysIfNeeded(int requestCode) {
 896        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 897        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 898        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 899        boolean hasUndecidedOwn =
 900                !axolotlService
 901                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided())
 902                        .isEmpty();
 903        boolean hasUndecidedContacts =
 904                !axolotlService
 905                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets)
 906                        .isEmpty();
 907        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 908        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 909        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 910        if (hasUndecidedOwn
 911                || hasUndecidedContacts
 912                || hasPendingKeys
 913                || hasNoTrustedKeys
 914                || hasUnaccepted
 915                || downloadInProgress) {
 916            axolotlService.createSessionsIfNeeded(conversation);
 917            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 918            String[] contacts = new String[targets.size()];
 919            for (int i = 0; i < contacts.length; ++i) {
 920                contacts[i] = targets.get(i).toString();
 921            }
 922            intent.putExtra("contacts", contacts);
 923            intent.putExtra(
 924                    EXTRA_ACCOUNT,
 925                    conversation.getAccount().getJid().asBareJid().toEscapedString());
 926            intent.putExtra("conversation", conversation.getUuid());
 927            startActivityForResult(intent, requestCode);
 928            return true;
 929        } else {
 930            return false;
 931        }
 932    }
 933
 934    public void updateChatMsgHint() {
 935        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 936        if (conversation.getCorrectingMessage() != null) {
 937            this.binding.textInputHint.setVisibility(View.GONE);
 938            this.binding.textinput.setHint(R.string.send_corrected_message);
 939        } else if (multi && conversation.getNextCounterpart() != null) {
 940            this.binding.textinput.setHint(R.string.send_message);
 941            this.binding.textInputHint.setVisibility(View.VISIBLE);
 942            this.binding.textInputHint.setText(
 943                    getString(
 944                            R.string.send_private_message_to,
 945                            conversation.getNextCounterpart().getResource()));
 946        } else if (multi && !conversation.getMucOptions().participating()) {
 947            this.binding.textInputHint.setVisibility(View.GONE);
 948            this.binding.textinput.setHint(R.string.you_are_not_participating);
 949        } else {
 950            this.binding.textInputHint.setVisibility(View.GONE);
 951            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 952            getActivity().invalidateOptionsMenu();
 953        }
 954    }
 955
 956    public void setupIme() {
 957        this.binding.textinput.refreshIme();
 958    }
 959
 960    private void handleActivityResult(ActivityResult activityResult) {
 961        if (activityResult.resultCode == Activity.RESULT_OK) {
 962            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 963        } else {
 964            handleNegativeActivityResult(activityResult.requestCode);
 965        }
 966    }
 967
 968    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 969        switch (requestCode) {
 970            case REQUEST_TRUST_KEYS_TEXT:
 971                sendMessage();
 972                break;
 973            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 974                commitAttachments();
 975                break;
 976            case REQUEST_START_AUDIO_CALL:
 977                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
 978                break;
 979            case REQUEST_START_VIDEO_CALL:
 980                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
 981                break;
 982            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 983                final List<Attachment> imageUris =
 984                        Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 985                mediaPreviewAdapter.addMediaPreviews(imageUris);
 986                toggleInputMethod();
 987                break;
 988            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 989                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 990                if (takePhotoUri != null) {
 991                    mediaPreviewAdapter.addMediaPreviews(
 992                            Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 993                    toggleInputMethod();
 994                } else {
 995                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 996                }
 997                break;
 998            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 999            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1000            case ATTACHMENT_CHOICE_RECORD_VOICE:
1001                final Attachment.Type type =
1002                        requestCode == ATTACHMENT_CHOICE_RECORD_VOICE
1003                                ? Attachment.Type.RECORDING
1004                                : Attachment.Type.FILE;
1005                final List<Attachment> fileUris =
1006                        Attachment.extractAttachments(getActivity(), data, type);
1007                mediaPreviewAdapter.addMediaPreviews(fileUris);
1008                toggleInputMethod();
1009                break;
1010            case ATTACHMENT_CHOICE_LOCATION:
1011                final double latitude = data.getDoubleExtra("latitude", 0);
1012                final double longitude = data.getDoubleExtra("longitude", 0);
1013                final int accuracy = data.getIntExtra("accuracy", 0);
1014                final Uri geo;
1015                if (accuracy > 0) {
1016                    geo = Uri.parse(String.format("geo:%s,%s;u=%s", latitude, longitude, accuracy));
1017                } else {
1018                    geo = Uri.parse(String.format("geo:%s,%s", latitude, longitude));
1019                }
1020                mediaPreviewAdapter.addMediaPreviews(
1021                        Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
1022                toggleInputMethod();
1023                break;
1024            case REQUEST_INVITE_TO_CONVERSATION:
1025                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
1026                if (invite != null) {
1027                    if (invite.execute(activity)) {
1028                        activity.mToast =
1029                                Toast.makeText(
1030                                        activity, R.string.creating_conference, Toast.LENGTH_LONG);
1031                        activity.mToast.show();
1032                    }
1033                }
1034                break;
1035        }
1036    }
1037
1038    private void commitAttachments() {
1039        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
1040        if (anyNeedsExternalStoragePermission(attachments)
1041                && !hasPermissions(
1042                        REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1043            return;
1044        }
1045        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_ATTACHMENTS)) {
1046            return;
1047        }
1048        final PresenceSelector.OnPresenceSelected callback =
1049                () -> {
1050                    for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
1051                        final Attachment attachment = i.next();
1052                        if (attachment.getType() == Attachment.Type.LOCATION) {
1053                            attachLocationToConversation(conversation, attachment.getUri());
1054                        } else if (attachment.getType() == Attachment.Type.IMAGE) {
1055                            Log.d(
1056                                    Config.LOGTAG,
1057                                    "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
1058                            attachImageToConversation(
1059                                    conversation, attachment.getUri(), attachment.getMime());
1060                        } else {
1061                            Log.d(
1062                                    Config.LOGTAG,
1063                                    "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
1064                            attachFileToConversation(
1065                                    conversation, attachment.getUri(), attachment.getMime());
1066                        }
1067                    }
1068                    mediaPreviewAdapter.notifyDataSetChanged();
1069                    toggleInputMethod();
1070                };
1071        if (conversation == null
1072                || conversation.getMode() == Conversation.MODE_MULTI
1073                || Attachment.canBeSendInband(attachments)
1074                || (conversation.getAccount().httpUploadAvailable()
1075                        && FileBackend.allFilesUnderSize(
1076                                getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
1077            callback.onPresenceSelected();
1078        } else {
1079            activity.selectPresence(conversation, callback);
1080        }
1081    }
1082
1083    private static boolean anyNeedsExternalStoragePermission(
1084            final Collection<Attachment> attachments) {
1085        for (final Attachment attachment : attachments) {
1086            if (attachment.getType() != Attachment.Type.LOCATION) {
1087                return true;
1088            }
1089        }
1090        return false;
1091    }
1092
1093    public void toggleInputMethod() {
1094        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
1095        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
1096        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
1097        updateSendButton();
1098    }
1099
1100    private void handleNegativeActivityResult(int requestCode) {
1101        switch (requestCode) {
1102            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1103                if (pendingTakePhotoUri.clear()) {
1104                    Log.d(
1105                            Config.LOGTAG,
1106                            "cleared pending photo uri after negative activity result");
1107                }
1108                break;
1109        }
1110    }
1111
1112    @Override
1113    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
1114        super.onActivityResult(requestCode, resultCode, data);
1115        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
1116        if (activity != null && activity.xmppConnectionService != null) {
1117            handleActivityResult(activityResult);
1118        } else {
1119            this.postponedActivityResult.push(activityResult);
1120        }
1121    }
1122
1123    public void unblockConversation(final Blockable conversation) {
1124        activity.xmppConnectionService.sendUnblockRequest(conversation);
1125    }
1126
1127    @Override
1128    public void onAttach(Activity activity) {
1129        super.onAttach(activity);
1130        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
1131        if (activity instanceof ConversationsActivity) {
1132            this.activity = (ConversationsActivity) activity;
1133        } else {
1134            throw new IllegalStateException(
1135                    "Trying to attach fragment to activity that is not the ConversationsActivity");
1136        }
1137    }
1138
1139    @Override
1140    public void onDetach() {
1141        super.onDetach();
1142        this.activity = null; // TODO maybe not a good idea since some callbacks really need it
1143    }
1144
1145    @Override
1146    public void onCreate(Bundle savedInstanceState) {
1147        super.onCreate(savedInstanceState);
1148        setHasOptionsMenu(true);
1149    }
1150
1151    @Override
1152    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
1153        menuInflater.inflate(R.menu.fragment_conversation, menu);
1154        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
1155        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
1156        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
1157        final MenuItem menuMute = menu.findItem(R.id.action_mute);
1158        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
1159        final MenuItem menuCall = menu.findItem(R.id.action_call);
1160        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
1161        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
1162        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
1163
1164        if (conversation != null) {
1165            if (conversation.getMode() == Conversation.MODE_MULTI) {
1166                menuContactDetails.setVisible(false);
1167                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
1168                menuMucDetails.setTitle(
1169                        conversation.getMucOptions().isPrivateAndNonAnonymous()
1170                                ? R.string.action_muc_details
1171                                : R.string.channel_details);
1172                menuCall.setVisible(false);
1173                menuOngoingCall.setVisible(false);
1174            } else {
1175                final XmppConnectionService service =
1176                        activity == null ? null : activity.xmppConnectionService;
1177                final Optional<OngoingRtpSession> ongoingRtpSession =
1178                        service == null
1179                                ? Optional.absent()
1180                                : service.getJingleConnectionManager()
1181                                        .getOngoingRtpConnection(conversation.getContact());
1182                if (ongoingRtpSession.isPresent()) {
1183                    menuOngoingCall.setVisible(true);
1184                    menuCall.setVisible(false);
1185                } else {
1186                    menuOngoingCall.setVisible(false);
1187                    final RtpCapability.Capability rtpCapability =
1188                            RtpCapability.check(conversation.getContact());
1189                    final boolean cameraAvailable =
1190                            activity != null && activity.isCameraFeatureAvailable();
1191                    menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
1192                    menuVideoCall.setVisible(
1193                            rtpCapability == RtpCapability.Capability.VIDEO && cameraAvailable);
1194                }
1195                menuContactDetails.setVisible(!this.conversation.withSelf());
1196                menuMucDetails.setVisible(false);
1197                menuInviteContact.setVisible(
1198                        service != null
1199                                && service.findConferenceServer(conversation.getAccount()) != null);
1200            }
1201            if (conversation.isMuted()) {
1202                menuMute.setVisible(false);
1203            } else {
1204                menuUnmute.setVisible(false);
1205            }
1206            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1207            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1208            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1209                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1210            } else {
1211                menuTogglePinned.setTitle(R.string.add_to_favorites);
1212            }
1213        }
1214        super.onCreateOptionsMenu(menu, menuInflater);
1215    }
1216
1217    @Override
1218    public View onCreateView(
1219            final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1220        this.binding =
1221                DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1222        binding.getRoot().setOnClickListener(null); // TODO why the fuck did we do this?
1223
1224        binding.textinput.addTextChangedListener(
1225                new StylingHelper.MessageEditorStyler(binding.textinput));
1226
1227        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1228        binding.textinput.setRichContentListener(new String[] {"image/*"}, mEditorContentListener);
1229
1230        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1231
1232        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1233        binding.messagesView.setOnScrollListener(mOnScrollListener);
1234        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1235        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1236        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1237        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1238        messageListAdapter.setOnContactPictureClicked(this);
1239        messageListAdapter.setOnContactPictureLongClicked(this);
1240        binding.messagesView.setAdapter(messageListAdapter);
1241
1242        registerForContextMenu(binding.messagesView);
1243
1244        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1245            this.binding.textinput.setCustomInsertionActionModeCallback(
1246                    new EditMessageActionModeCallback(this.binding.textinput));
1247        }
1248
1249        return binding.getRoot();
1250    }
1251
1252    @Override
1253    public void onDestroyView() {
1254        super.onDestroyView();
1255        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1256        messageListAdapter.setOnContactPictureClicked(null);
1257        messageListAdapter.setOnContactPictureLongClicked(null);
1258    }
1259
1260    private void quoteText(String text) {
1261        if (binding.textinput.isEnabled()) {
1262            binding.textinput.insertAsQuote(text);
1263            binding.textinput.requestFocus();
1264            InputMethodManager inputMethodManager =
1265                    (InputMethodManager)
1266                            getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1267            if (inputMethodManager != null) {
1268                inputMethodManager.showSoftInput(
1269                        binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1270            }
1271        }
1272    }
1273
1274    private void quoteMessage(Message message) {
1275        quoteText(MessageUtils.prepareQuote(message));
1276    }
1277
1278    @Override
1279    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1280        // This should cancel any remaining click events that would otherwise trigger links
1281        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1282        synchronized (this.messageList) {
1283            super.onCreateContextMenu(menu, v, menuInfo);
1284            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1285            this.selectedMessage = this.messageList.get(acmi.position);
1286            populateContextMenu(menu);
1287        }
1288    }
1289
1290    private void populateContextMenu(ContextMenu menu) {
1291        final Message m = this.selectedMessage;
1292        final Transferable t = m.getTransferable();
1293        Message relevantForCorrection = m;
1294        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1295            relevantForCorrection = relevantForCorrection.next();
1296        }
1297        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1298
1299            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE
1300                    || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1301                return;
1302            }
1303
1304            if (m.getStatus() == Message.STATUS_RECEIVED
1305                    && t != null
1306                    && (t.getStatus() == Transferable.STATUS_CANCELLED
1307                            || t.getStatus() == Transferable.STATUS_FAILED)) {
1308                return;
1309            }
1310
1311            final boolean deleted = m.isDeleted();
1312            final boolean encrypted =
1313                    m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1314                            || m.getEncryption() == Message.ENCRYPTION_PGP;
1315            final boolean receiving =
1316                    m.getStatus() == Message.STATUS_RECEIVED
1317                            && (t instanceof JingleFileTransferConnection
1318                                    || t instanceof HttpDownloadConnection);
1319            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1320            menu.setHeaderTitle(R.string.message_options);
1321            MenuItem openWith = menu.findItem(R.id.open_with);
1322            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1323            MenuItem copyLink = menu.findItem(R.id.copy_link);
1324            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1325            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1326            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1327            MenuItem shareWith = menu.findItem(R.id.share_with);
1328            MenuItem sendAgain = menu.findItem(R.id.send_again);
1329            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1330            MenuItem downloadFile = menu.findItem(R.id.download_file);
1331            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1332            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1333            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1334            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1335            final boolean showError =
1336                    m.getStatus() == Message.STATUS_SEND_FAILED
1337                            && m.getErrorMessage() != null
1338                            && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1339            if (!m.isFileOrImage()
1340                    && !encrypted
1341                    && !m.isGeoUri()
1342                    && !m.treatAsDownloadable()
1343                    && !unInitiatedButKnownSize
1344                    && t == null) {
1345                copyMessage.setVisible(true);
1346                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1347                String body = m.getMergedBody().toString();
1348                if (ShareUtil.containsXmppUri(body)) {
1349                    copyLink.setTitle(R.string.copy_jabber_id);
1350                    copyLink.setVisible(true);
1351                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1352                    copyLink.setVisible(true);
1353                }
1354            }
1355            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1356                retryDecryption.setVisible(true);
1357            }
1358            if (!showError
1359                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1360                    && !m.isGeoUri()
1361                    && relevantForCorrection.isLastCorrectableMessage()
1362                    && m.getConversation() instanceof Conversation) {
1363                correctMessage.setVisible(true);
1364            }
1365            if ((m.isFileOrImage() && !deleted && !receiving)
1366                    || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())
1367                            && !unInitiatedButKnownSize
1368                            && t == null) {
1369                shareWith.setVisible(true);
1370            }
1371            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1372                sendAgain.setVisible(true);
1373            }
1374            if (m.hasFileOnRemoteHost()
1375                    || m.isGeoUri()
1376                    || m.treatAsDownloadable()
1377                    || unInitiatedButKnownSize
1378                    || t instanceof HttpDownloadConnection) {
1379                copyUrl.setVisible(true);
1380            }
1381            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1382                downloadFile.setVisible(true);
1383                downloadFile.setTitle(
1384                        activity.getString(
1385                                R.string.download_x_file,
1386                                UIHelper.getFileDescriptionString(activity, m)));
1387            }
1388            final boolean waitingOfferedSending =
1389                    m.getStatus() == Message.STATUS_WAITING
1390                            || m.getStatus() == Message.STATUS_UNSEND
1391                            || m.getStatus() == Message.STATUS_OFFERED;
1392            final boolean cancelable =
1393                    (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1394            if (cancelable) {
1395                cancelTransmission.setVisible(true);
1396            }
1397            if (m.isFileOrImage() && !deleted && !cancelable) {
1398                final String path = m.getRelativeFilePath();
1399                if (path == null
1400                        || !path.startsWith("/")
1401                        || FileBackend.inConversationsDirectory(requireActivity(), path)) {
1402                    deleteFile.setVisible(true);
1403                    deleteFile.setTitle(
1404                            activity.getString(
1405                                    R.string.delete_x_file,
1406                                    UIHelper.getFileDescriptionString(activity, m)));
1407                }
1408            }
1409            if (showError) {
1410                showErrorMessage.setVisible(true);
1411            }
1412            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1413            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m))
1414                    || (mime != null && mime.startsWith("audio/"))) {
1415                openWith.setVisible(true);
1416            }
1417        }
1418    }
1419
1420    @Override
1421    public boolean onContextItemSelected(MenuItem item) {
1422        switch (item.getItemId()) {
1423            case R.id.share_with:
1424                ShareUtil.share(activity, selectedMessage);
1425                return true;
1426            case R.id.correct_message:
1427                correctMessage(selectedMessage);
1428                return true;
1429            case R.id.copy_message:
1430                ShareUtil.copyToClipboard(activity, selectedMessage);
1431                return true;
1432            case R.id.copy_link:
1433                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1434                return true;
1435            case R.id.quote_message:
1436                quoteMessage(selectedMessage);
1437                return true;
1438            case R.id.send_again:
1439                resendMessage(selectedMessage);
1440                return true;
1441            case R.id.copy_url:
1442                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1443                return true;
1444            case R.id.download_file:
1445                startDownloadable(selectedMessage);
1446                return true;
1447            case R.id.cancel_transmission:
1448                cancelTransmission(selectedMessage);
1449                return true;
1450            case R.id.retry_decryption:
1451                retryDecryption(selectedMessage);
1452                return true;
1453            case R.id.delete_file:
1454                deleteFile(selectedMessage);
1455                return true;
1456            case R.id.show_error_message:
1457                showErrorMessage(selectedMessage);
1458                return true;
1459            case R.id.open_with:
1460                openWith(selectedMessage);
1461                return true;
1462            default:
1463                return super.onContextItemSelected(item);
1464        }
1465    }
1466
1467    @Override
1468    public boolean onOptionsItemSelected(final MenuItem item) {
1469        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1470            return false;
1471        } else if (conversation == null) {
1472            return super.onOptionsItemSelected(item);
1473        }
1474        switch (item.getItemId()) {
1475            case R.id.encryption_choice_axolotl:
1476            case R.id.encryption_choice_pgp:
1477            case R.id.encryption_choice_none:
1478                handleEncryptionSelection(item);
1479                break;
1480            case R.id.attach_choose_picture:
1481            case R.id.attach_take_picture:
1482            case R.id.attach_record_video:
1483            case R.id.attach_choose_file:
1484            case R.id.attach_record_voice:
1485            case R.id.attach_location:
1486                handleAttachmentSelection(item);
1487                break;
1488            case R.id.action_search:
1489                startSearch();
1490                break;
1491            case R.id.action_archive:
1492                activity.xmppConnectionService.archiveConversation(conversation);
1493                break;
1494            case R.id.action_contact_details:
1495                activity.switchToContactDetails(conversation.getContact());
1496                break;
1497            case R.id.action_muc_details:
1498                ConferenceDetailsActivity.open(getActivity(), conversation);
1499                break;
1500            case R.id.action_invite:
1501                startActivityForResult(
1502                        ChooseContactActivity.create(activity, conversation),
1503                        REQUEST_INVITE_TO_CONVERSATION);
1504                break;
1505            case R.id.action_clear_history:
1506                clearHistoryDialog(conversation);
1507                break;
1508            case R.id.action_mute:
1509                muteConversationDialog(conversation);
1510                break;
1511            case R.id.action_unmute:
1512                unMuteConversation(conversation);
1513                break;
1514            case R.id.action_block:
1515            case R.id.action_unblock:
1516                final Activity activity = getActivity();
1517                if (activity instanceof XmppActivity) {
1518                    BlockContactDialog.show((XmppActivity) activity, conversation);
1519                }
1520                break;
1521            case R.id.action_audio_call:
1522                checkPermissionAndTriggerAudioCall();
1523                break;
1524            case R.id.action_video_call:
1525                checkPermissionAndTriggerVideoCall();
1526                break;
1527            case R.id.action_ongoing_call:
1528                returnToOngoingCall();
1529                break;
1530            case R.id.action_toggle_pinned:
1531                togglePinned();
1532                break;
1533            case R.id.action_refresh_feature_discovery:
1534                refreshFeatureDiscovery();
1535                break;
1536            default:
1537                break;
1538        }
1539        return super.onOptionsItemSelected(item);
1540    }
1541
1542    private void startSearch() {
1543        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1544        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1545        startActivity(intent);
1546    }
1547
1548    private void returnToOngoingCall() {
1549        final Optional<OngoingRtpSession> ongoingRtpSession =
1550                activity.xmppConnectionService
1551                        .getJingleConnectionManager()
1552                        .getOngoingRtpConnection(conversation.getContact());
1553        if (ongoingRtpSession.isPresent()) {
1554            final OngoingRtpSession id = ongoingRtpSession.get();
1555            final Intent intent = new Intent(activity, RtpSessionActivity.class);
1556            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1557            intent.putExtra(
1558                    RtpSessionActivity.EXTRA_ACCOUNT,
1559                    id.getAccount().getJid().asBareJid().toEscapedString());
1560            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1561            if (id instanceof AbstractJingleConnection.Id) {
1562                intent.setAction(Intent.ACTION_VIEW);
1563                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1564            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1565                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1566                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1567                } else {
1568                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1569                }
1570            }
1571            activity.startActivity(intent);
1572        }
1573    }
1574
1575    private void refreshFeatureDiscovery() {
1576        for (Map.Entry<String, Presence> entry : conversation.getContact().getPresences().getPresencesMap().entrySet()) {
1577            Jid jid = conversation.getContact().getJid();
1578            if (!entry.getKey().equals("")) jid = jid.withResource(entry.getKey());
1579            activity.xmppConnectionService.fetchCaps(conversation.getAccount(), jid, entry.getValue(), () -> {
1580                if (activity == null) return;
1581                activity.runOnUiThread(() -> { refresh(); });
1582            });
1583        }
1584    }
1585
1586    private void togglePinned() {
1587        final boolean pinned =
1588                conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1589        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1590        activity.xmppConnectionService.updateConversation(conversation);
1591        activity.invalidateOptionsMenu();
1592    }
1593
1594    private void checkPermissionAndTriggerAudioCall() {
1595        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1596            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1597            return;
1598        }
1599        final List<String> permissions;
1600        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1601            permissions =
1602                    Arrays.asList(
1603                            Manifest.permission.RECORD_AUDIO,
1604                            Manifest.permission.BLUETOOTH_CONNECT);
1605        } else {
1606            permissions = Collections.singletonList(Manifest.permission.RECORD_AUDIO);
1607        }
1608        if (hasPermissions(REQUEST_START_AUDIO_CALL, permissions)) {
1609            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1610        }
1611    }
1612
1613    private void checkPermissionAndTriggerVideoCall() {
1614        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1615            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1616            return;
1617        }
1618        final List<String> permissions;
1619        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1620            permissions =
1621                    Arrays.asList(
1622                            Manifest.permission.RECORD_AUDIO,
1623                            Manifest.permission.CAMERA,
1624                            Manifest.permission.BLUETOOTH_CONNECT);
1625        } else {
1626            permissions =
1627                    Arrays.asList(Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA);
1628        }
1629        if (hasPermissions(REQUEST_START_VIDEO_CALL, permissions)) {
1630            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1631        }
1632    }
1633
1634    private void triggerRtpSession(final String action) {
1635        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy() != null) {
1636            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG)
1637                    .show();
1638            return;
1639        }
1640        final Contact contact = conversation.getContact();
1641        if (contact.getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1642            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1643        } else {
1644            final RtpCapability.Capability capability;
1645            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1646                capability = RtpCapability.Capability.VIDEO;
1647            } else {
1648                capability = RtpCapability.Capability.AUDIO;
1649            }
1650            PresenceSelector.selectFullJidForDirectRtpConnection(
1651                    activity,
1652                    contact,
1653                    capability,
1654                    fullJid -> {
1655                        triggerRtpSession(contact.getAccount(), fullJid, action);
1656                    });
1657        }
1658    }
1659
1660    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1661        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1662        intent.setAction(action);
1663        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1664        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1665        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1666        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1667        startActivity(intent);
1668    }
1669
1670    private void handleAttachmentSelection(MenuItem item) {
1671        switch (item.getItemId()) {
1672            case R.id.attach_choose_picture:
1673                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1674                break;
1675            case R.id.attach_take_picture:
1676                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1677                break;
1678            case R.id.attach_record_video:
1679                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1680                break;
1681            case R.id.attach_choose_file:
1682                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1683                break;
1684            case R.id.attach_record_voice:
1685                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1686                break;
1687            case R.id.attach_location:
1688                attachFile(ATTACHMENT_CHOICE_LOCATION);
1689                break;
1690        }
1691    }
1692
1693    private void handleEncryptionSelection(MenuItem item) {
1694        if (conversation == null) {
1695            return;
1696        }
1697        final boolean updated;
1698        switch (item.getItemId()) {
1699            case R.id.encryption_choice_none:
1700                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1701                item.setChecked(true);
1702                break;
1703            case R.id.encryption_choice_pgp:
1704                if (activity.hasPgp()) {
1705                    if (conversation.getAccount().getPgpSignature() != null) {
1706                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1707                        item.setChecked(true);
1708                    } else {
1709                        updated = false;
1710                        activity.announcePgp(
1711                                conversation.getAccount(),
1712                                conversation,
1713                                null,
1714                                activity.onOpenPGPKeyPublished);
1715                    }
1716                } else {
1717                    activity.showInstallPgpDialog();
1718                    updated = false;
1719                }
1720                break;
1721            case R.id.encryption_choice_axolotl:
1722                Log.d(
1723                        Config.LOGTAG,
1724                        AxolotlService.getLogprefix(conversation.getAccount())
1725                                + "Enabled axolotl for Contact "
1726                                + conversation.getContact().getJid());
1727                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1728                item.setChecked(true);
1729                break;
1730            default:
1731                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1732                break;
1733        }
1734        if (updated) {
1735            activity.xmppConnectionService.updateConversation(conversation);
1736        }
1737        updateChatMsgHint();
1738        getActivity().invalidateOptionsMenu();
1739        activity.refreshUi();
1740    }
1741
1742    public void attachFile(final int attachmentChoice) {
1743        attachFile(attachmentChoice, true);
1744    }
1745
1746    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1747        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1748            if (!hasPermissions(
1749                    attachmentChoice,
1750                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1751                    Manifest.permission.RECORD_AUDIO)) {
1752                return;
1753            }
1754        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO
1755                || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1756            if (!hasPermissions(
1757                    attachmentChoice,
1758                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1759                    Manifest.permission.CAMERA)) {
1760                return;
1761            }
1762        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1763            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1764                return;
1765            }
1766        }
1767        if (updateRecentlyUsed) {
1768            storeRecentlyUsedQuickAction(attachmentChoice);
1769        }
1770        final int encryption = conversation.getNextEncryption();
1771        final int mode = conversation.getMode();
1772        if (encryption == Message.ENCRYPTION_PGP) {
1773            if (activity.hasPgp()) {
1774                if (mode == Conversation.MODE_SINGLE
1775                        && conversation.getContact().getPgpKeyId() != 0) {
1776                    activity.xmppConnectionService
1777                            .getPgpEngine()
1778                            .hasKey(
1779                                    conversation.getContact(),
1780                                    new UiCallback<Contact>() {
1781
1782                                        @Override
1783                                        public void userInputRequired(
1784                                                PendingIntent pi, Contact contact) {
1785                                            startPendingIntent(pi, attachmentChoice);
1786                                        }
1787
1788                                        @Override
1789                                        public void success(Contact contact) {
1790                                            invokeAttachFileIntent(attachmentChoice);
1791                                        }
1792
1793                                        @Override
1794                                        public void error(int error, Contact contact) {
1795                                            activity.replaceToast(getString(error));
1796                                        }
1797                                    });
1798                } else if (mode == Conversation.MODE_MULTI
1799                        && conversation.getMucOptions().pgpKeysInUse()) {
1800                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1801                        Toast warning =
1802                                Toast.makeText(
1803                                        getActivity(),
1804                                        R.string.missing_public_keys,
1805                                        Toast.LENGTH_LONG);
1806                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1807                        warning.show();
1808                    }
1809                    invokeAttachFileIntent(attachmentChoice);
1810                } else {
1811                    showNoPGPKeyDialog(
1812                            false,
1813                            (dialog, which) -> {
1814                                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1815                                activity.xmppConnectionService.updateConversation(conversation);
1816                                invokeAttachFileIntent(attachmentChoice);
1817                            });
1818                }
1819            } else {
1820                activity.showInstallPgpDialog();
1821            }
1822        } else {
1823            invokeAttachFileIntent(attachmentChoice);
1824        }
1825    }
1826
1827    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1828        try {
1829            activity.getPreferences()
1830                    .edit()
1831                    .putString(
1832                            RECENTLY_USED_QUICK_ACTION,
1833                            SendButtonAction.of(attachmentChoice).toString())
1834                    .apply();
1835        } catch (IllegalArgumentException e) {
1836            // just do not save
1837        }
1838    }
1839
1840    @Override
1841    public void onRequestPermissionsResult(
1842            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1843        final PermissionUtils.PermissionResult permissionResult =
1844                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
1845        if (grantResults.length > 0) {
1846            if (allGranted(permissionResult.grantResults)) {
1847                switch (requestCode) {
1848                    case REQUEST_START_DOWNLOAD:
1849                        if (this.mPendingDownloadableMessage != null) {
1850                            startDownloadable(this.mPendingDownloadableMessage);
1851                        }
1852                        break;
1853                    case REQUEST_ADD_EDITOR_CONTENT:
1854                        if (this.mPendingEditorContent != null) {
1855                            attachEditorContentToConversation(this.mPendingEditorContent);
1856                        }
1857                        break;
1858                    case REQUEST_COMMIT_ATTACHMENTS:
1859                        commitAttachments();
1860                        break;
1861                    case REQUEST_START_AUDIO_CALL:
1862                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1863                        break;
1864                    case REQUEST_START_VIDEO_CALL:
1865                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1866                        break;
1867                    default:
1868                        attachFile(requestCode);
1869                        break;
1870                }
1871            } else {
1872                @StringRes int res;
1873                String firstDenied =
1874                        getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
1875                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1876                    res = R.string.no_microphone_permission;
1877                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1878                    res = R.string.no_camera_permission;
1879                } else {
1880                    res = R.string.no_storage_permission;
1881                }
1882                Toast.makeText(
1883                                getActivity(),
1884                                getString(res, getString(R.string.app_name)),
1885                                Toast.LENGTH_SHORT)
1886                        .show();
1887            }
1888        }
1889        if (writeGranted(grantResults, permissions)) {
1890            if (activity != null && activity.xmppConnectionService != null) {
1891                activity.xmppConnectionService.getBitmapCache().evictAll();
1892                activity.xmppConnectionService.restartFileObserver();
1893            }
1894            refresh();
1895        }
1896    }
1897
1898    public void startDownloadable(Message message) {
1899        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1900            this.mPendingDownloadableMessage = message;
1901            return;
1902        }
1903        Transferable transferable = message.getTransferable();
1904        if (transferable != null) {
1905            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1906                createNewConnection(message);
1907                return;
1908            }
1909            if (!transferable.start()) {
1910                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1911                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1912                        .show();
1913            }
1914        } else if (message.treatAsDownloadable()
1915                || message.hasFileOnRemoteHost()
1916                || MessageUtils.unInitiatedButKnownSize(message)) {
1917            createNewConnection(message);
1918        } else {
1919            Log.d(
1920                    Config.LOGTAG,
1921                    message.getConversation().getAccount() + ": unable to start downloadable");
1922        }
1923    }
1924
1925    private void createNewConnection(final Message message) {
1926        if (!activity.xmppConnectionService.hasInternetConnection()) {
1927            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1928                    .show();
1929            return;
1930        }
1931        if (message.getOob() != null && message.getOob().getScheme().equalsIgnoreCase("cid")) {
1932            try {
1933                BobTransfer transfer = new BobTransfer(message, activity.xmppConnectionService);
1934                message.setTransferable(transfer);
1935                transfer.start();
1936            } catch (URISyntaxException e) {
1937                Log.d(Config.LOGTAG, "BobTransfer failed to parse URI");
1938            }
1939        } else {
1940            activity.xmppConnectionService
1941                    .getHttpConnectionManager()
1942                    .createNewDownloadConnection(message, true);
1943        }
1944    }
1945
1946    @SuppressLint("InflateParams")
1947    protected void clearHistoryDialog(final Conversation conversation) {
1948        final AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
1949        builder.setTitle(getString(R.string.clear_conversation_history));
1950        final View dialogView =
1951                requireActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1952        final CheckBox endConversationCheckBox =
1953                dialogView.findViewById(R.id.end_conversation_checkbox);
1954        builder.setView(dialogView);
1955        builder.setNegativeButton(getString(R.string.cancel), null);
1956        builder.setPositiveButton(
1957                getString(R.string.confirm),
1958                (dialog, which) -> {
1959                    this.activity.xmppConnectionService.clearConversationHistory(conversation);
1960                    if (endConversationCheckBox.isChecked()) {
1961                        this.activity.xmppConnectionService.archiveConversation(conversation);
1962                        this.activity.onConversationArchived(conversation);
1963                    } else {
1964                        activity.onConversationsListItemUpdated();
1965                        refresh();
1966                    }
1967                });
1968        builder.create().show();
1969    }
1970
1971    protected void muteConversationDialog(final Conversation conversation) {
1972        final AlertDialog.Builder builder = new AlertDialog.Builder(activity);
1973        builder.setTitle(R.string.disable_notifications);
1974        final int[] durations = activity.getResources().getIntArray(R.array.mute_options_durations);
1975        final CharSequence[] labels = new CharSequence[durations.length];
1976        for (int i = 0; i < durations.length; ++i) {
1977            if (durations[i] == -1) {
1978                labels[i] = activity.getString(R.string.until_further_notice);
1979            } else {
1980                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1981            }
1982        }
1983        builder.setItems(
1984                labels,
1985                (dialog, which) -> {
1986                    final long till;
1987                    if (durations[which] == -1) {
1988                        till = Long.MAX_VALUE;
1989                    } else {
1990                        till = System.currentTimeMillis() + (durations[which] * 1000L);
1991                    }
1992                    conversation.setMutedTill(till);
1993                    activity.xmppConnectionService.updateConversation(conversation);
1994                    activity.onConversationsListItemUpdated();
1995                    refresh();
1996                    activity.invalidateOptionsMenu();
1997                });
1998        builder.create().show();
1999    }
2000
2001    private boolean hasPermissions(int requestCode, List<String> permissions) {
2002        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
2003            final List<String> missingPermissions = new ArrayList<>();
2004            for (String permission : permissions) {
2005                if (Config.ONLY_INTERNAL_STORAGE
2006                        && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2007                    continue;
2008                }
2009                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
2010                    missingPermissions.add(permission);
2011                }
2012            }
2013            if (missingPermissions.size() == 0) {
2014                return true;
2015            } else {
2016                requestPermissions(
2017                        missingPermissions.toArray(new String[0]),
2018                        requestCode);
2019                return false;
2020            }
2021        } else {
2022            return true;
2023        }
2024    }
2025
2026    private boolean hasPermissions(int requestCode, String... permissions) {
2027        return hasPermissions(requestCode, ImmutableList.copyOf(permissions));
2028    }
2029
2030    public void unMuteConversation(final Conversation conversation) {
2031        conversation.setMutedTill(0);
2032        this.activity.xmppConnectionService.updateConversation(conversation);
2033        this.activity.onConversationsListItemUpdated();
2034        refresh();
2035        this.activity.invalidateOptionsMenu();
2036    }
2037
2038    protected void invokeAttachFileIntent(final int attachmentChoice) {
2039        Intent intent = new Intent();
2040        boolean chooser = false;
2041        switch (attachmentChoice) {
2042            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
2043                intent.setAction(Intent.ACTION_GET_CONTENT);
2044                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2045                intent.setType("image/*");
2046                chooser = true;
2047                break;
2048            case ATTACHMENT_CHOICE_RECORD_VIDEO:
2049                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
2050                break;
2051            case ATTACHMENT_CHOICE_TAKE_PHOTO:
2052                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
2053                pendingTakePhotoUri.push(uri);
2054                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
2055                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
2056                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
2057                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
2058                break;
2059            case ATTACHMENT_CHOICE_CHOOSE_FILE:
2060                chooser = true;
2061                intent.setType("*/*");
2062                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2063                intent.addCategory(Intent.CATEGORY_OPENABLE);
2064                intent.setAction(Intent.ACTION_GET_CONTENT);
2065                break;
2066            case ATTACHMENT_CHOICE_RECORD_VOICE:
2067                intent = new Intent(getActivity(), RecordingActivity.class);
2068                break;
2069            case ATTACHMENT_CHOICE_LOCATION:
2070                intent = GeoHelper.getFetchIntent(activity);
2071                break;
2072        }
2073        final Context context = getActivity();
2074        if (context == null) {
2075            return;
2076        }
2077        try {
2078            if (chooser) {
2079                startActivityForResult(
2080                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
2081                        attachmentChoice);
2082            } else {
2083                startActivityForResult(intent, attachmentChoice);
2084            }
2085        } catch (final ActivityNotFoundException e) {
2086            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
2087        }
2088    }
2089
2090    @Override
2091    public void onResume() {
2092        super.onResume();
2093        binding.messagesView.post(this::fireReadEvent);
2094    }
2095
2096    private void fireReadEvent() {
2097        if (activity != null && this.conversation != null) {
2098            String uuid = getLastVisibleMessageUuid();
2099            if (uuid != null) {
2100                activity.onConversationRead(this.conversation, uuid);
2101            }
2102        }
2103    }
2104
2105    private String getLastVisibleMessageUuid() {
2106        if (binding == null) {
2107            return null;
2108        }
2109        synchronized (this.messageList) {
2110            int pos = binding.messagesView.getLastVisiblePosition();
2111            if (pos >= 0) {
2112                Message message = null;
2113                for (int i = pos; i >= 0; --i) {
2114                    try {
2115                        message = (Message) binding.messagesView.getItemAtPosition(i);
2116                    } catch (IndexOutOfBoundsException e) {
2117                        // should not happen if we synchronize properly. however if that fails we
2118                        // just gonna try item -1
2119                        continue;
2120                    }
2121                    if (message.getType() != Message.TYPE_STATUS) {
2122                        break;
2123                    }
2124                }
2125                if (message != null) {
2126                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
2127                        message = message.next();
2128                    }
2129                    return message.getUuid();
2130                }
2131            }
2132        }
2133        return null;
2134    }
2135
2136    private void openWith(final Message message) {
2137        if (message.isGeoUri()) {
2138            GeoHelper.view(getActivity(), message);
2139        } else {
2140            final DownloadableFile file =
2141                    activity.xmppConnectionService.getFileBackend().getFile(message);
2142            ViewUtil.view(activity, file);
2143        }
2144    }
2145
2146    private void showErrorMessage(final Message message) {
2147        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2148        builder.setTitle(R.string.error_message);
2149        final String errorMessage = message.getErrorMessage();
2150        final String[] errorMessageParts =
2151                errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
2152        final String displayError;
2153        if (errorMessageParts.length == 2) {
2154            displayError = errorMessageParts[1];
2155        } else {
2156            displayError = errorMessage;
2157        }
2158        builder.setMessage(displayError);
2159        builder.setNegativeButton(
2160                R.string.copy_to_clipboard,
2161                (dialog, which) -> {
2162                    activity.copyTextToClipboard(displayError, R.string.error_message);
2163                    Toast.makeText(
2164                                    activity,
2165                                    R.string.error_message_copied_to_clipboard,
2166                                    Toast.LENGTH_SHORT)
2167                            .show();
2168                });
2169        builder.setPositiveButton(R.string.confirm, null);
2170        builder.create().show();
2171    }
2172
2173    private void deleteFile(final Message message) {
2174        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2175        builder.setNegativeButton(R.string.cancel, null);
2176        builder.setTitle(R.string.delete_file_dialog);
2177        builder.setMessage(R.string.delete_file_dialog_msg);
2178        builder.setPositiveButton(
2179                R.string.confirm,
2180                (dialog, which) -> {
2181                    if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
2182                        message.setDeleted(true);
2183                        activity.xmppConnectionService.evictPreview(message.getUuid());
2184                        activity.xmppConnectionService.updateMessage(message, false);
2185                        activity.onConversationsListItemUpdated();
2186                        refresh();
2187                    }
2188                });
2189        builder.create().show();
2190    }
2191
2192    private void resendMessage(final Message message) {
2193        if (message.isFileOrImage()) {
2194            if (!(message.getConversation() instanceof Conversation)) {
2195                return;
2196            }
2197            final Conversation conversation = (Conversation) message.getConversation();
2198            final DownloadableFile file =
2199                    activity.xmppConnectionService.getFileBackend().getFile(message);
2200            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
2201                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
2202                if (!message.hasFileOnRemoteHost()
2203                        && xmppConnection != null
2204                        && conversation.getMode() == Conversational.MODE_SINGLE
2205                        && !xmppConnection
2206                                .getFeatures()
2207                                .httpUpload(message.getFileParams().getSize())) {
2208                    activity.selectPresence(
2209                            conversation,
2210                            () -> {
2211                                message.setCounterpart(conversation.getNextCounterpart());
2212                                activity.xmppConnectionService.resendFailedMessages(message);
2213                                new Handler()
2214                                        .post(
2215                                                () -> {
2216                                                    int size = messageList.size();
2217                                                    this.binding.messagesView.setSelection(
2218                                                            size - 1);
2219                                                });
2220                            });
2221                    return;
2222                }
2223            } else if (!Compatibility.hasStoragePermission(getActivity())) {
2224                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
2225                return;
2226            } else {
2227                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
2228                message.setDeleted(true);
2229                activity.xmppConnectionService.updateMessage(message, false);
2230                activity.onConversationsListItemUpdated();
2231                refresh();
2232                return;
2233            }
2234        }
2235        activity.xmppConnectionService.resendFailedMessages(message);
2236        new Handler()
2237                .post(
2238                        () -> {
2239                            int size = messageList.size();
2240                            this.binding.messagesView.setSelection(size - 1);
2241                        });
2242    }
2243
2244    private void cancelTransmission(Message message) {
2245        Transferable transferable = message.getTransferable();
2246        if (transferable != null) {
2247            transferable.cancel();
2248        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
2249            activity.xmppConnectionService.markMessage(
2250                    message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
2251        }
2252    }
2253
2254    private void retryDecryption(Message message) {
2255        message.setEncryption(Message.ENCRYPTION_PGP);
2256        activity.onConversationsListItemUpdated();
2257        refresh();
2258        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
2259    }
2260
2261    public void privateMessageWith(final Jid counterpart) {
2262        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2263            activity.xmppConnectionService.sendChatState(conversation);
2264        }
2265        this.binding.textinput.setText("");
2266        this.conversation.setNextCounterpart(counterpart);
2267        updateChatMsgHint();
2268        updateSendButton();
2269        updateEditablity();
2270    }
2271
2272    private void correctMessage(Message message) {
2273        while (message.mergeable(message.next())) {
2274            message = message.next();
2275        }
2276        this.conversation.setCorrectingMessage(message);
2277        final Editable editable = binding.textinput.getText();
2278        this.conversation.setDraftMessage(editable.toString());
2279        this.binding.textinput.setText("");
2280        this.binding.textinput.append(message.getBody());
2281    }
2282
2283    private void highlightInConference(String nick) {
2284        final Editable editable = this.binding.textinput.getText();
2285        String oldString = editable.toString().trim();
2286        final int pos = this.binding.textinput.getSelectionStart();
2287        if (oldString.isEmpty() || pos == 0) {
2288            editable.insert(0, nick + ": ");
2289        } else {
2290            final char before = editable.charAt(pos - 1);
2291            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
2292            if (before == '\n') {
2293                editable.insert(pos, nick + ": ");
2294            } else {
2295                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
2296                    if (NickValidityChecker.check(
2297                            conversation,
2298                            Arrays.asList(
2299                                    editable.subSequence(0, pos - 2).toString().split(", ")))) {
2300                        editable.insert(pos - 2, ", " + nick);
2301                        return;
2302                    }
2303                }
2304                editable.insert(
2305                        pos,
2306                        (Character.isWhitespace(before) ? "" : " ")
2307                                + nick
2308                                + (Character.isWhitespace(after) ? "" : " "));
2309                if (Character.isWhitespace(after)) {
2310                    this.binding.textinput.setSelection(
2311                            this.binding.textinput.getSelectionStart() + 1);
2312                }
2313            }
2314        }
2315    }
2316
2317    @Override
2318    public void startActivityForResult(Intent intent, int requestCode) {
2319        final Activity activity = getActivity();
2320        if (activity instanceof ConversationsActivity) {
2321            ((ConversationsActivity) activity).clearPendingViewIntent();
2322        }
2323        super.startActivityForResult(intent, requestCode);
2324    }
2325
2326    @Override
2327    public void onSaveInstanceState(@NotNull Bundle outState) {
2328        super.onSaveInstanceState(outState);
2329        if (conversation != null) {
2330            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
2331            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
2332            final Uri uri = pendingTakePhotoUri.peek();
2333            if (uri != null) {
2334                outState.putString(STATE_PHOTO_URI, uri.toString());
2335            }
2336            final ScrollState scrollState = getScrollPosition();
2337            if (scrollState != null) {
2338                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
2339            }
2340            final ArrayList<Attachment> attachments =
2341                    mediaPreviewAdapter == null
2342                            ? new ArrayList<>()
2343                            : mediaPreviewAdapter.getAttachments();
2344            if (attachments.size() > 0) {
2345                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
2346            }
2347        }
2348    }
2349
2350    @Override
2351    public void onActivityCreated(Bundle savedInstanceState) {
2352        super.onActivityCreated(savedInstanceState);
2353        if (savedInstanceState == null) {
2354            return;
2355        }
2356        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
2357        ArrayList<Attachment> attachments =
2358                savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
2359        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
2360        if (uuid != null) {
2361            QuickLoader.set(uuid);
2362            this.pendingConversationsUuid.push(uuid);
2363            if (attachments != null && attachments.size() > 0) {
2364                this.pendingMediaPreviews.push(attachments);
2365            }
2366            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
2367            if (takePhotoUri != null) {
2368                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2369            }
2370            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2371        }
2372    }
2373
2374    @Override
2375    public void onStart() {
2376        super.onStart();
2377        if (this.reInitRequiredOnStart && this.conversation != null) {
2378            final Bundle extras = pendingExtras.pop();
2379            reInit(this.conversation, extras != null);
2380            if (extras != null) {
2381                processExtras(extras);
2382            }
2383        } else if (conversation == null
2384                && activity != null
2385                && activity.xmppConnectionService != null) {
2386            final String uuid = pendingConversationsUuid.pop();
2387            Log.d(
2388                    Config.LOGTAG,
2389                    "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid="
2390                            + uuid);
2391            if (uuid != null) {
2392                findAndReInitByUuidOrArchive(uuid);
2393            }
2394        }
2395    }
2396
2397    @Override
2398    public void onStop() {
2399        super.onStop();
2400        final Activity activity = getActivity();
2401        messageListAdapter.unregisterListenerInAudioPlayer();
2402        if (activity == null || !activity.isChangingConfigurations()) {
2403            hideSoftKeyboard(activity);
2404            messageListAdapter.stopAudioPlayer();
2405        }
2406        if (this.conversation != null) {
2407            final String msg = this.binding.textinput.getText().toString();
2408            storeNextMessage(msg);
2409            updateChatState(this.conversation, msg);
2410            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2411        }
2412        this.reInitRequiredOnStart = true;
2413    }
2414
2415    private void updateChatState(final Conversation conversation, final String msg) {
2416        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2417        Account.State status = conversation.getAccount().getStatus();
2418        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2419            activity.xmppConnectionService.sendChatState(conversation);
2420        }
2421    }
2422
2423    private void saveMessageDraftStopAudioPlayer() {
2424        final Conversation previousConversation = this.conversation;
2425        if (this.activity == null || this.binding == null || previousConversation == null) {
2426            return;
2427        }
2428        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2429        final String msg = this.binding.textinput.getText().toString();
2430        storeNextMessage(msg);
2431        updateChatState(this.conversation, msg);
2432        messageListAdapter.stopAudioPlayer();
2433        mediaPreviewAdapter.clearPreviews();
2434        toggleInputMethod();
2435    }
2436
2437    public void reInit(final Conversation conversation, final Bundle extras) {
2438        QuickLoader.set(conversation.getUuid());
2439        final boolean changedConversation = this.conversation != conversation;
2440        if (changedConversation) {
2441            this.saveMessageDraftStopAudioPlayer();
2442        }
2443        this.clearPending();
2444        if (this.reInit(conversation, extras != null)) {
2445            if (extras != null) {
2446                processExtras(extras);
2447            }
2448            this.reInitRequiredOnStart = false;
2449        } else {
2450            this.reInitRequiredOnStart = true;
2451            pendingExtras.push(extras);
2452        }
2453        resetUnreadMessagesCount();
2454    }
2455
2456    private void reInit(Conversation conversation) {
2457        reInit(conversation, false);
2458    }
2459
2460    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2461        if (conversation == null) {
2462            return false;
2463        }
2464        this.conversation = conversation;
2465        // once we set the conversation all is good and it will automatically do the right thing in
2466        // onStart()
2467        if (this.activity == null || this.binding == null) {
2468            return false;
2469        }
2470
2471        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2472            activity.onConversationArchived(this.conversation);
2473            return false;
2474        }
2475
2476        stopScrolling();
2477        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
2478
2479        if (this.conversation.isRead() && hasExtras) {
2480            Log.d(Config.LOGTAG, "trimming conversation");
2481            this.conversation.trim();
2482        }
2483
2484        setupIme();
2485
2486        final boolean scrolledToBottomAndNoPending =
2487                this.scrolledToBottom() && pendingScrollState.peek() == null;
2488
2489        this.binding.textSendButton.setContentDescription(
2490                activity.getString(R.string.send_message_to_x, conversation.getName()));
2491        this.binding.textinput.setKeyboardListener(null);
2492        this.binding.textinput.setText("");
2493        final boolean participating =
2494                conversation.getMode() == Conversational.MODE_SINGLE
2495                        || conversation.getMucOptions().participating();
2496        if (participating) {
2497            this.binding.textinput.append(this.conversation.getNextMessage());
2498        }
2499        this.binding.textinput.setKeyboardListener(this);
2500        messageListAdapter.updatePreferences();
2501        refresh(false);
2502        activity.invalidateOptionsMenu();
2503        this.conversation.messagesLoaded.set(true);
2504        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
2505
2506        if (hasExtras || scrolledToBottomAndNoPending) {
2507            resetUnreadMessagesCount();
2508            synchronized (this.messageList) {
2509                Log.d(Config.LOGTAG, "jump to first unread message");
2510                final Message first = conversation.getFirstUnreadMessage();
2511                final int bottom = Math.max(0, this.messageList.size() - 1);
2512                final int pos;
2513                final boolean jumpToBottom;
2514                if (first == null) {
2515                    pos = bottom;
2516                    jumpToBottom = true;
2517                } else {
2518                    int i = getIndexOf(first.getUuid(), this.messageList);
2519                    pos = i < 0 ? bottom : i;
2520                    jumpToBottom = false;
2521                }
2522                setSelection(pos, jumpToBottom);
2523            }
2524        }
2525
2526        this.binding.messagesView.post(this::fireReadEvent);
2527        // TODO if we only do this when this fragment is running on main it won't *bing* in tablet
2528        // layout which might be unnecessary since we can *see* it
2529        activity.xmppConnectionService
2530                .getNotificationService()
2531                .setOpenConversation(this.conversation);
2532
2533        if (commandAdapter == null) {
2534            conversation.setupViewPager(binding.conversationViewPager, binding.tabLayout);
2535            commandAdapter = new CommandAdapter((XmppActivity) getActivity());
2536            binding.commandsView.setAdapter(commandAdapter);
2537            binding.commandsView.setOnItemClickListener((parent, view, position, id) -> {
2538                conversation.startCommand(commandAdapter.getItem(position), activity.xmppConnectionService);
2539            });
2540            refreshCommands();
2541        }
2542
2543        return true;
2544    }
2545
2546    protected void refreshCommands() {
2547        if (commandAdapter == null) return;
2548
2549        Jid commandJid = conversation.getContact().resourceWhichSupport(Namespace.COMMANDS);
2550        if (commandJid == null) {
2551            conversation.hideViewPager();
2552        } else {
2553            conversation.showViewPager();
2554            activity.xmppConnectionService.fetchCommands(conversation.getAccount(), commandJid, (a, iq) -> {
2555                if (activity == null) return;
2556
2557                activity.runOnUiThread(() -> {
2558                    if (iq.getType() == IqPacket.TYPE.RESULT) {
2559                        binding.commandsViewProgressbar.setVisibility(View.GONE);
2560                        commandAdapter.clear();
2561                        for (Element child : iq.query().getChildren()) {
2562                            if (!"item".equals(child.getName()) || !Namespace.DISCO_ITEMS.equals(child.getNamespace())) continue;
2563                            commandAdapter.add(child);
2564                        }
2565                    }
2566
2567                    if (commandAdapter.getCount() < 1) conversation.hideViewPager();
2568                });
2569            });
2570        }
2571    }
2572
2573    private void resetUnreadMessagesCount() {
2574        lastMessageUuid = null;
2575        hideUnreadMessagesCount();
2576    }
2577
2578    private void hideUnreadMessagesCount() {
2579        if (this.binding == null) {
2580            return;
2581        }
2582        this.binding.scrollToBottomButton.setEnabled(false);
2583        this.binding.scrollToBottomButton.hide();
2584        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2585    }
2586
2587    private void setSelection(int pos, boolean jumpToBottom) {
2588        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2589        this.binding.messagesView.post(
2590                () -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2591        this.binding.messagesView.post(this::fireReadEvent);
2592    }
2593
2594    private boolean scrolledToBottom() {
2595        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2596    }
2597
2598    private void processExtras(final Bundle extras) {
2599        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2600        final String text = extras.getString(Intent.EXTRA_TEXT);
2601        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2602        final String postInitAction =
2603                extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2604        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2605        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2606        final boolean doNotAppend =
2607                extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2608        final String type = extras.getString(ConversationsActivity.EXTRA_TYPE);
2609        final List<Uri> uris = extractUris(extras);
2610        if (uris != null && uris.size() > 0) {
2611            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2612                mediaPreviewAdapter.addMediaPreviews(
2613                        Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2614            } else {
2615                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2616                mediaPreviewAdapter.addMediaPreviews(
2617                        Attachment.of(getActivity(), cleanedUris, type));
2618            }
2619            toggleInputMethod();
2620            return;
2621        }
2622        if (nick != null) {
2623            if (pm) {
2624                Jid jid = conversation.getJid();
2625                try {
2626                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2627                    privateMessageWith(next);
2628                } catch (final IllegalArgumentException ignored) {
2629                    // do nothing
2630                }
2631            } else {
2632                final MucOptions mucOptions = conversation.getMucOptions();
2633                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2634                    highlightInConference(nick);
2635                }
2636            }
2637        } else {
2638            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2639                mediaPreviewAdapter.addMediaPreviews(
2640                        Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2641                toggleInputMethod();
2642                return;
2643            } else if (text != null && asQuote) {
2644                quoteText(text);
2645            } else {
2646                appendText(text, doNotAppend);
2647            }
2648        }
2649        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2650            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2651            return;
2652        }
2653        final Message message =
2654                downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2655        if (message != null) {
2656            startDownloadable(message);
2657        }
2658    }
2659
2660    private List<Uri> extractUris(final Bundle extras) {
2661        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2662        if (uris != null) {
2663            return uris;
2664        }
2665        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2666        if (uri != null) {
2667            return Collections.singletonList(uri);
2668        } else {
2669            return null;
2670        }
2671    }
2672
2673    private List<Uri> cleanUris(final List<Uri> uris) {
2674        final Iterator<Uri> iterator = uris.iterator();
2675        while (iterator.hasNext()) {
2676            final Uri uri = iterator.next();
2677            if (FileBackend.weOwnFile(uri)) {
2678                iterator.remove();
2679                Toast.makeText(
2680                                getActivity(),
2681                                R.string.security_violation_not_attaching_file,
2682                                Toast.LENGTH_SHORT)
2683                        .show();
2684            }
2685        }
2686        return uris;
2687    }
2688
2689    private boolean showBlockSubmenu(View view) {
2690        final Jid jid = conversation.getJid();
2691        final boolean showReject =
2692                !conversation.isWithStranger()
2693                        && conversation
2694                                .getContact()
2695                                .getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2696        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2697        popupMenu.inflate(R.menu.block);
2698        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2699        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2700        popupMenu.setOnMenuItemClickListener(
2701                menuItem -> {
2702                    Blockable blockable;
2703                    switch (menuItem.getItemId()) {
2704                        case R.id.reject:
2705                            activity.xmppConnectionService.stopPresenceUpdatesTo(
2706                                    conversation.getContact());
2707                            updateSnackBar(conversation);
2708                            return true;
2709                        case R.id.block_domain:
2710                            blockable =
2711                                    conversation
2712                                            .getAccount()
2713                                            .getRoster()
2714                                            .getContact(jid.getDomain());
2715                            break;
2716                        default:
2717                            blockable = conversation;
2718                    }
2719                    BlockContactDialog.show(activity, blockable);
2720                    return true;
2721                });
2722        popupMenu.show();
2723        return true;
2724    }
2725
2726    private void updateSnackBar(final Conversation conversation) {
2727        final Account account = conversation.getAccount();
2728        final XmppConnection connection = account.getXmppConnection();
2729        final int mode = conversation.getMode();
2730        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2731        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2732            return;
2733        }
2734        if (account.getStatus() == Account.State.DISABLED) {
2735            showSnackbar(
2736                    R.string.this_account_is_disabled,
2737                    R.string.enable,
2738                    this.mEnableAccountListener);
2739        } else if (conversation.isBlocked()) {
2740            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2741        } else if (contact != null
2742                && !contact.showInRoster()
2743                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2744            showSnackbar(
2745                    R.string.contact_added_you,
2746                    R.string.add_back,
2747                    this.mAddBackClickListener,
2748                    this.mLongPressBlockListener);
2749        } else if (contact != null
2750                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2751            showSnackbar(
2752                    R.string.contact_asks_for_presence_subscription,
2753                    R.string.allow,
2754                    this.mAllowPresenceSubscription,
2755                    this.mLongPressBlockListener);
2756        } else if (mode == Conversation.MODE_MULTI
2757                && !conversation.getMucOptions().online()
2758                && account.getStatus() == Account.State.ONLINE) {
2759            switch (conversation.getMucOptions().getError()) {
2760                case NICK_IN_USE:
2761                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2762                    break;
2763                case NO_RESPONSE:
2764                    showSnackbar(R.string.joining_conference, 0, null);
2765                    break;
2766                case SERVER_NOT_FOUND:
2767                    if (conversation.receivedMessagesCount() > 0) {
2768                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2769                    } else {
2770                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2771                    }
2772                    break;
2773                case REMOTE_SERVER_TIMEOUT:
2774                    if (conversation.receivedMessagesCount() > 0) {
2775                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2776                    } else {
2777                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2778                    }
2779                    break;
2780                case PASSWORD_REQUIRED:
2781                    showSnackbar(
2782                            R.string.conference_requires_password,
2783                            R.string.enter_password,
2784                            enterPassword);
2785                    break;
2786                case BANNED:
2787                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2788                    break;
2789                case MEMBERS_ONLY:
2790                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2791                    break;
2792                case RESOURCE_CONSTRAINT:
2793                    showSnackbar(
2794                            R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2795                    break;
2796                case KICKED:
2797                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2798                    break;
2799                case UNKNOWN:
2800                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2801                    break;
2802                case INVALID_NICK:
2803                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2804                case SHUTDOWN:
2805                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2806                    break;
2807                case DESTROYED:
2808                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2809                    break;
2810                case NON_ANONYMOUS:
2811                    showSnackbar(
2812                            R.string.group_chat_will_make_your_jabber_id_public,
2813                            R.string.join,
2814                            acceptJoin);
2815                    break;
2816                default:
2817                    hideSnackbar();
2818                    break;
2819            }
2820        } else if (account.hasPendingPgpIntent(conversation)) {
2821            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2822        } else if (connection != null
2823                && connection.getFeatures().blocking()
2824                && conversation.countMessages() != 0
2825                && !conversation.isBlocked()
2826                && conversation.isWithStranger()) {
2827            showSnackbar(
2828                    R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2829        } else {
2830            hideSnackbar();
2831        }
2832    }
2833
2834    @Override
2835    public void refresh() {
2836        if (this.binding == null) {
2837            Log.d(
2838                    Config.LOGTAG,
2839                    "ConversationFragment.refresh() skipped updated because view binding was null");
2840            return;
2841        }
2842        if (this.conversation != null
2843                && this.activity != null
2844                && this.activity.xmppConnectionService != null) {
2845            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2846                activity.onConversationArchived(this.conversation);
2847                return;
2848            }
2849        }
2850        this.refresh(true);
2851    }
2852
2853    private void refresh(boolean notifyConversationRead) {
2854        synchronized (this.messageList) {
2855            if (this.conversation != null) {
2856                conversation.populateWithMessages(this.messageList);
2857                updateSnackBar(conversation);
2858                updateStatusMessages();
2859                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2860                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2861                    binding.unreadCountCustomView.setUnreadCount(
2862                            conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2863                }
2864                this.messageListAdapter.notifyDataSetChanged();
2865                updateChatMsgHint();
2866                if (notifyConversationRead && activity != null) {
2867                    binding.messagesView.post(this::fireReadEvent);
2868                }
2869                updateSendButton();
2870                updateEditablity();
2871                refreshCommands();
2872            }
2873        }
2874    }
2875
2876    protected void messageSent() {
2877        mSendingPgpMessage.set(false);
2878        this.binding.textinput.setText("");
2879        if (conversation.setCorrectingMessage(null)) {
2880            this.binding.textinput.append(conversation.getDraftMessage());
2881            conversation.setDraftMessage(null);
2882        }
2883        storeNextMessage();
2884        updateChatMsgHint();
2885        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2886        final boolean prefScrollToBottom =
2887                p.getBoolean(
2888                        "scroll_to_bottom",
2889                        activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2890        if (prefScrollToBottom || scrolledToBottom()) {
2891            new Handler()
2892                    .post(
2893                            () -> {
2894                                int size = messageList.size();
2895                                this.binding.messagesView.setSelection(size - 1);
2896                            });
2897        }
2898    }
2899
2900    private boolean storeNextMessage() {
2901        return storeNextMessage(this.binding.textinput.getText().toString());
2902    }
2903
2904    private boolean storeNextMessage(String msg) {
2905        final boolean participating =
2906                conversation.getMode() == Conversational.MODE_SINGLE
2907                        || conversation.getMucOptions().participating();
2908        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED
2909                && participating
2910                && this.conversation.setNextMessage(msg)) {
2911            this.activity.xmppConnectionService.updateConversation(this.conversation);
2912            return true;
2913        }
2914        return false;
2915    }
2916
2917    public void doneSendingPgpMessage() {
2918        mSendingPgpMessage.set(false);
2919    }
2920
2921    public long getMaxHttpUploadSize(Conversation conversation) {
2922        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2923        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2924    }
2925
2926    private void updateEditablity() {
2927        boolean canWrite =
2928                this.conversation.getMode() == Conversation.MODE_SINGLE
2929                        || this.conversation.getMucOptions().participating()
2930                        || this.conversation.getNextCounterpart() != null;
2931        this.binding.textinput.setFocusable(canWrite);
2932        this.binding.textinput.setFocusableInTouchMode(canWrite);
2933        this.binding.textSendButton.setEnabled(canWrite);
2934        this.binding.textinput.setCursorVisible(canWrite);
2935        this.binding.textinput.setEnabled(canWrite);
2936    }
2937
2938    public void updateSendButton() {
2939        boolean hasAttachments =
2940                mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2941        final Conversation c = this.conversation;
2942        final Presence.Status status;
2943        final String text =
2944                this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2945        final SendButtonAction action;
2946        if (hasAttachments) {
2947            action = SendButtonAction.TEXT;
2948        } else {
2949            action = SendButtonTool.getAction(getActivity(), c, text);
2950        }
2951        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2952            if (activity != null
2953                    && activity.xmppConnectionService != null
2954                    && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2955                status = Presence.Status.OFFLINE;
2956            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2957                status = c.getContact().getShownStatus();
2958            } else {
2959                status =
2960                        c.getMucOptions().online()
2961                                ? Presence.Status.ONLINE
2962                                : Presence.Status.OFFLINE;
2963            }
2964        } else {
2965            status = Presence.Status.OFFLINE;
2966        }
2967        this.binding.textSendButton.setTag(action);
2968        final Activity activity = getActivity();
2969        if (activity != null) {
2970            this.binding.textSendButton.setImageResource(
2971                    SendButtonTool.getSendButtonImageResource(activity, action, status));
2972        }
2973    }
2974
2975    protected void updateStatusMessages() {
2976        DateSeparator.addAll(this.messageList);
2977        if (showLoadMoreMessages(conversation)) {
2978            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2979        }
2980        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2981            ChatState state = conversation.getIncomingChatState();
2982            if (state == ChatState.COMPOSING) {
2983                this.messageList.add(
2984                        Message.createStatusMessage(
2985                                conversation,
2986                                getString(R.string.contact_is_typing, conversation.getName())));
2987            } else if (state == ChatState.PAUSED) {
2988                this.messageList.add(
2989                        Message.createStatusMessage(
2990                                conversation,
2991                                getString(
2992                                        R.string.contact_has_stopped_typing,
2993                                        conversation.getName())));
2994            } else {
2995                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2996                    final Message message = this.messageList.get(i);
2997                    if (message.getType() != Message.TYPE_STATUS) {
2998                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2999                            return;
3000                        } else {
3001                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
3002                                this.messageList.add(
3003                                        i + 1,
3004                                        Message.createStatusMessage(
3005                                                conversation,
3006                                                getString(
3007                                                        R.string.contact_has_read_up_to_this_point,
3008                                                        conversation.getName())));
3009                                return;
3010                            }
3011                        }
3012                    }
3013                }
3014            }
3015        } else {
3016            final MucOptions mucOptions = conversation.getMucOptions();
3017            final List<MucOptions.User> allUsers = mucOptions.getUsers();
3018            final Set<ReadByMarker> addedMarkers = new HashSet<>();
3019            ChatState state = ChatState.COMPOSING;
3020            List<MucOptions.User> users =
3021                    conversation.getMucOptions().getUsersWithChatState(state, 5);
3022            if (users.size() == 0) {
3023                state = ChatState.PAUSED;
3024                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
3025            }
3026            if (mucOptions.isPrivateAndNonAnonymous()) {
3027                for (int i = this.messageList.size() - 1; i >= 0; --i) {
3028                    final Set<ReadByMarker> markersForMessage =
3029                            messageList.get(i).getReadByMarkers();
3030                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
3031                    for (ReadByMarker marker : markersForMessage) {
3032                        if (!ReadByMarker.contains(marker, addedMarkers)) {
3033                            addedMarkers.add(
3034                                    marker); // may be put outside this condition. set should do
3035                                             // dedup anyway
3036                            MucOptions.User user = mucOptions.findUser(marker);
3037                            if (user != null && !users.contains(user)) {
3038                                shownMarkers.add(user);
3039                            }
3040                        }
3041                    }
3042                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
3043                    final Message statusMessage;
3044                    final int size = shownMarkers.size();
3045                    if (size > 1) {
3046                        final String body;
3047                        if (size <= 4) {
3048                            body =
3049                                    getString(
3050                                            R.string.contacts_have_read_up_to_this_point,
3051                                            UIHelper.concatNames(shownMarkers));
3052                        } else if (ReadByMarker.allUsersRepresented(
3053                                allUsers, markersForMessage, markerForSender)) {
3054                            body = getString(R.string.everyone_has_read_up_to_this_point);
3055                        } else {
3056                            body =
3057                                    getString(
3058                                            R.string.contacts_and_n_more_have_read_up_to_this_point,
3059                                            UIHelper.concatNames(shownMarkers, 3),
3060                                            size - 3);
3061                        }
3062                        statusMessage = Message.createStatusMessage(conversation, body);
3063                        statusMessage.setCounterparts(shownMarkers);
3064                    } else if (size == 1) {
3065                        statusMessage =
3066                                Message.createStatusMessage(
3067                                        conversation,
3068                                        getString(
3069                                                R.string.contact_has_read_up_to_this_point,
3070                                                UIHelper.getDisplayName(shownMarkers.get(0))));
3071                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
3072                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
3073                    } else {
3074                        statusMessage = null;
3075                    }
3076                    if (statusMessage != null) {
3077                        this.messageList.add(i + 1, statusMessage);
3078                    }
3079                    addedMarkers.add(markerForSender);
3080                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
3081                        break;
3082                    }
3083                }
3084            }
3085            if (users.size() > 0) {
3086                Message statusMessage;
3087                if (users.size() == 1) {
3088                    MucOptions.User user = users.get(0);
3089                    int id =
3090                            state == ChatState.COMPOSING
3091                                    ? R.string.contact_is_typing
3092                                    : R.string.contact_has_stopped_typing;
3093                    statusMessage =
3094                            Message.createStatusMessage(
3095                                    conversation, getString(id, UIHelper.getDisplayName(user)));
3096                    statusMessage.setTrueCounterpart(user.getRealJid());
3097                    statusMessage.setCounterpart(user.getFullJid());
3098                } else {
3099                    int id =
3100                            state == ChatState.COMPOSING
3101                                    ? R.string.contacts_are_typing
3102                                    : R.string.contacts_have_stopped_typing;
3103                    statusMessage =
3104                            Message.createStatusMessage(
3105                                    conversation, getString(id, UIHelper.concatNames(users)));
3106                    statusMessage.setCounterparts(users);
3107                }
3108                this.messageList.add(statusMessage);
3109            }
3110        }
3111    }
3112
3113    private void stopScrolling() {
3114        long now = SystemClock.uptimeMillis();
3115        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
3116        binding.messagesView.dispatchTouchEvent(cancel);
3117    }
3118
3119    private boolean showLoadMoreMessages(final Conversation c) {
3120        if (activity == null || activity.xmppConnectionService == null) {
3121            return false;
3122        }
3123        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
3124        final MessageArchiveService service =
3125                activity.xmppConnectionService.getMessageArchiveService();
3126        return mam
3127                && (c.getLastClearHistory().getTimestamp() != 0
3128                        || (c.countMessages() == 0
3129                                && c.messagesLoaded.get()
3130                                && c.hasMessagesLeftOnServer()
3131                                && !service.queryInProgress(c)));
3132    }
3133
3134    private boolean hasMamSupport(final Conversation c) {
3135        if (c.getMode() == Conversation.MODE_SINGLE) {
3136            final XmppConnection connection = c.getAccount().getXmppConnection();
3137            return connection != null && connection.getFeatures().mam();
3138        } else {
3139            return c.getMucOptions().mamSupport();
3140        }
3141    }
3142
3143    protected void showSnackbar(
3144            final int message, final int action, final OnClickListener clickListener) {
3145        showSnackbar(message, action, clickListener, null);
3146    }
3147
3148    protected void showSnackbar(
3149            final int message,
3150            final int action,
3151            final OnClickListener clickListener,
3152            final View.OnLongClickListener longClickListener) {
3153        this.binding.snackbar.setVisibility(View.VISIBLE);
3154        this.binding.snackbar.setOnClickListener(null);
3155        this.binding.snackbarMessage.setText(message);
3156        this.binding.snackbarMessage.setOnClickListener(null);
3157        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
3158        if (action != 0) {
3159            this.binding.snackbarAction.setText(action);
3160        }
3161        this.binding.snackbarAction.setOnClickListener(clickListener);
3162        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
3163    }
3164
3165    protected void hideSnackbar() {
3166        this.binding.snackbar.setVisibility(View.GONE);
3167    }
3168
3169    protected void sendMessage(Message message) {
3170        activity.xmppConnectionService.sendMessage(message);
3171        messageSent();
3172    }
3173
3174    protected void sendPgpMessage(final Message message) {
3175        final XmppConnectionService xmppService = activity.xmppConnectionService;
3176        final Contact contact = message.getConversation().getContact();
3177        if (!activity.hasPgp()) {
3178            activity.showInstallPgpDialog();
3179            return;
3180        }
3181        if (conversation.getAccount().getPgpSignature() == null) {
3182            activity.announcePgp(
3183                    conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
3184            return;
3185        }
3186        if (!mSendingPgpMessage.compareAndSet(false, true)) {
3187            Log.d(Config.LOGTAG, "sending pgp message already in progress");
3188        }
3189        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3190            if (contact.getPgpKeyId() != 0) {
3191                xmppService
3192                        .getPgpEngine()
3193                        .hasKey(
3194                                contact,
3195                                new UiCallback<Contact>() {
3196
3197                                    @Override
3198                                    public void userInputRequired(
3199                                            PendingIntent pi, Contact contact) {
3200                                        startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
3201                                    }
3202
3203                                    @Override
3204                                    public void success(Contact contact) {
3205                                        encryptTextMessage(message);
3206                                    }
3207
3208                                    @Override
3209                                    public void error(int error, Contact contact) {
3210                                        activity.runOnUiThread(
3211                                                () ->
3212                                                        Toast.makeText(
3213                                                                        activity,
3214                                                                        R.string
3215                                                                                .unable_to_connect_to_keychain,
3216                                                                        Toast.LENGTH_SHORT)
3217                                                                .show());
3218                                        mSendingPgpMessage.set(false);
3219                                    }
3220                                });
3221
3222            } else {
3223                showNoPGPKeyDialog(
3224                        false,
3225                        (dialog, which) -> {
3226                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3227                            xmppService.updateConversation(conversation);
3228                            message.setEncryption(Message.ENCRYPTION_NONE);
3229                            xmppService.sendMessage(message);
3230                            messageSent();
3231                        });
3232            }
3233        } else {
3234            if (conversation.getMucOptions().pgpKeysInUse()) {
3235                if (!conversation.getMucOptions().everybodyHasKeys()) {
3236                    Toast warning =
3237                            Toast.makeText(
3238                                    getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
3239                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
3240                    warning.show();
3241                }
3242                encryptTextMessage(message);
3243            } else {
3244                showNoPGPKeyDialog(
3245                        true,
3246                        (dialog, which) -> {
3247                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3248                            message.setEncryption(Message.ENCRYPTION_NONE);
3249                            xmppService.updateConversation(conversation);
3250                            xmppService.sendMessage(message);
3251                            messageSent();
3252                        });
3253            }
3254        }
3255    }
3256
3257    public void encryptTextMessage(Message message) {
3258        activity.xmppConnectionService
3259                .getPgpEngine()
3260                .encrypt(
3261                        message,
3262                        new UiCallback<Message>() {
3263
3264                            @Override
3265                            public void userInputRequired(PendingIntent pi, Message message) {
3266                                startPendingIntent(pi, REQUEST_SEND_MESSAGE);
3267                            }
3268
3269                            @Override
3270                            public void success(Message message) {
3271                                // TODO the following two call can be made before the callback
3272                                getActivity().runOnUiThread(() -> messageSent());
3273                            }
3274
3275                            @Override
3276                            public void error(final int error, Message message) {
3277                                getActivity()
3278                                        .runOnUiThread(
3279                                                () -> {
3280                                                    doneSendingPgpMessage();
3281                                                    Toast.makeText(
3282                                                                    getActivity(),
3283                                                                    error == 0
3284                                                                            ? R.string
3285                                                                                    .unable_to_connect_to_keychain
3286                                                                            : error,
3287                                                                    Toast.LENGTH_SHORT)
3288                                                            .show();
3289                                                });
3290                            }
3291                        });
3292    }
3293
3294    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
3295        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
3296        builder.setIconAttribute(android.R.attr.alertDialogIcon);
3297        if (plural) {
3298            builder.setTitle(getString(R.string.no_pgp_keys));
3299            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
3300        } else {
3301            builder.setTitle(getString(R.string.no_pgp_key));
3302            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
3303        }
3304        builder.setNegativeButton(getString(R.string.cancel), null);
3305        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
3306        builder.create().show();
3307    }
3308
3309    public void appendText(String text, final boolean doNotAppend) {
3310        if (text == null) {
3311            return;
3312        }
3313        final Editable editable = this.binding.textinput.getText();
3314        String previous = editable == null ? "" : editable.toString();
3315        if (doNotAppend && !TextUtils.isEmpty(previous)) {
3316            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG)
3317                    .show();
3318            return;
3319        }
3320        if (UIHelper.isLastLineQuote(previous)) {
3321            text = '\n' + text;
3322        } else if (previous.length() != 0
3323                && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
3324            text = " " + text;
3325        }
3326        this.binding.textinput.append(text);
3327    }
3328
3329    @Override
3330    public boolean onEnterPressed(final boolean isCtrlPressed) {
3331        if (isCtrlPressed || enterIsSend()) {
3332            sendMessage();
3333            return true;
3334        }
3335        return false;
3336    }
3337
3338    private boolean enterIsSend() {
3339        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
3340        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
3341    }
3342
3343    public boolean onArrowUpCtrlPressed() {
3344        final Message lastEditableMessage =
3345                conversation == null ? null : conversation.getLastEditableMessage();
3346        if (lastEditableMessage != null) {
3347            correctMessage(lastEditableMessage);
3348            return true;
3349        } else {
3350            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG)
3351                    .show();
3352            return false;
3353        }
3354    }
3355
3356    @Override
3357    public void onTypingStarted() {
3358        final XmppConnectionService service =
3359                activity == null ? null : activity.xmppConnectionService;
3360        if (service == null) {
3361            return;
3362        }
3363        final Account.State status = conversation.getAccount().getStatus();
3364        if (status == Account.State.ONLINE
3365                && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
3366            service.sendChatState(conversation);
3367        }
3368        runOnUiThread(this::updateSendButton);
3369    }
3370
3371    @Override
3372    public void onTypingStopped() {
3373        final XmppConnectionService service =
3374                activity == null ? null : activity.xmppConnectionService;
3375        if (service == null) {
3376            return;
3377        }
3378        final Account.State status = conversation.getAccount().getStatus();
3379        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
3380            service.sendChatState(conversation);
3381        }
3382    }
3383
3384    @Override
3385    public void onTextDeleted() {
3386        final XmppConnectionService service =
3387                activity == null ? null : activity.xmppConnectionService;
3388        if (service == null) {
3389            return;
3390        }
3391        final Account.State status = conversation.getAccount().getStatus();
3392        if (status == Account.State.ONLINE
3393                && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
3394            service.sendChatState(conversation);
3395        }
3396        if (storeNextMessage()) {
3397            runOnUiThread(
3398                    () -> {
3399                        if (activity == null) {
3400                            return;
3401                        }
3402                        activity.onConversationsListItemUpdated();
3403                    });
3404        }
3405        runOnUiThread(this::updateSendButton);
3406    }
3407
3408    @Override
3409    public void onTextChanged() {
3410        if (conversation != null && conversation.getCorrectingMessage() != null) {
3411            runOnUiThread(this::updateSendButton);
3412        }
3413    }
3414
3415    @Override
3416    public boolean onTabPressed(boolean repeated) {
3417        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
3418            return false;
3419        }
3420        if (repeated) {
3421            completionIndex++;
3422        } else {
3423            lastCompletionLength = 0;
3424            completionIndex = 0;
3425            final String content = this.binding.textinput.getText().toString();
3426            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
3427            int start =
3428                    lastCompletionCursor > 0
3429                            ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1
3430                            : 0;
3431            firstWord = start == 0;
3432            incomplete = content.substring(start, lastCompletionCursor);
3433        }
3434        List<String> completions = new ArrayList<>();
3435        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
3436            String name = user.getName();
3437            if (name != null && name.startsWith(incomplete)) {
3438                completions.add(name + (firstWord ? ": " : " "));
3439            }
3440        }
3441        Collections.sort(completions);
3442        if (completions.size() > completionIndex) {
3443            String completion = completions.get(completionIndex).substring(incomplete.length());
3444            this.binding
3445                    .textinput
3446                    .getEditableText()
3447                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3448            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
3449            lastCompletionLength = completion.length();
3450        } else {
3451            completionIndex = -1;
3452            this.binding
3453                    .textinput
3454                    .getEditableText()
3455                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3456            lastCompletionLength = 0;
3457        }
3458        return true;
3459    }
3460
3461    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
3462        try {
3463            getActivity()
3464                    .startIntentSenderForResult(
3465                            pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
3466        } catch (final SendIntentException ignored) {
3467        }
3468    }
3469
3470    @Override
3471    public void onBackendConnected() {
3472        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
3473        String uuid = pendingConversationsUuid.pop();
3474        if (uuid != null) {
3475            if (!findAndReInitByUuidOrArchive(uuid)) {
3476                return;
3477            }
3478        } else {
3479            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
3480                clearPending();
3481                activity.onConversationArchived(conversation);
3482                return;
3483            }
3484        }
3485        ActivityResult activityResult = postponedActivityResult.pop();
3486        if (activityResult != null) {
3487            handleActivityResult(activityResult);
3488        }
3489        clearPending();
3490    }
3491
3492    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
3493        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
3494        if (conversation == null) {
3495            clearPending();
3496            activity.onConversationArchived(null);
3497            return false;
3498        }
3499        reInit(conversation);
3500        ScrollState scrollState = pendingScrollState.pop();
3501        String lastMessageUuid = pendingLastMessageUuid.pop();
3502        List<Attachment> attachments = pendingMediaPreviews.pop();
3503        if (scrollState != null) {
3504            setScrollPosition(scrollState, lastMessageUuid);
3505        }
3506        if (attachments != null && attachments.size() > 0) {
3507            Log.d(Config.LOGTAG, "had attachments on restore");
3508            mediaPreviewAdapter.addMediaPreviews(attachments);
3509            toggleInputMethod();
3510        }
3511        return true;
3512    }
3513
3514    private void clearPending() {
3515        if (postponedActivityResult.clear()) {
3516            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
3517            if (pendingTakePhotoUri.clear()) {
3518                Log.e(Config.LOGTAG, "cleared pending photo uri");
3519            }
3520        }
3521        if (pendingScrollState.clear()) {
3522            Log.e(Config.LOGTAG, "cleared scroll state");
3523        }
3524        if (pendingConversationsUuid.clear()) {
3525            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
3526        }
3527        if (pendingMediaPreviews.clear()) {
3528            Log.e(Config.LOGTAG, "cleared pending media previews");
3529        }
3530    }
3531
3532    public Conversation getConversation() {
3533        return conversation;
3534    }
3535
3536    @Override
3537    public void onContactPictureLongClicked(View v, final Message message) {
3538        final String fingerprint;
3539        if (message.getEncryption() == Message.ENCRYPTION_PGP
3540                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3541            fingerprint = "pgp";
3542        } else {
3543            fingerprint = message.getFingerprint();
3544        }
3545        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
3546        final Contact contact = message.getContact();
3547        if (message.getStatus() <= Message.STATUS_RECEIVED
3548                && (contact == null || !contact.isSelf())) {
3549            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
3550                final Jid cp = message.getCounterpart();
3551                if (cp == null || cp.isBareJid()) {
3552                    return;
3553                }
3554                final Jid tcp = message.getTrueCounterpart();
3555                final User userByRealJid =
3556                        tcp != null
3557                                ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp)
3558                                : null;
3559                final User user =
3560                        userByRealJid != null
3561                                ? userByRealJid
3562                                : conversation.getMucOptions().findUserByFullJid(cp);
3563                popupMenu.inflate(R.menu.muc_details_context);
3564                final Menu menu = popupMenu.getMenu();
3565                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(
3566                        activity, menu, conversation, user);
3567                popupMenu.setOnMenuItemClickListener(
3568                        menuItem ->
3569                                MucDetailsContextMenuHelper.onContextItemSelected(
3570                                        menuItem, user, activity, fingerprint));
3571            } else {
3572                popupMenu.inflate(R.menu.one_on_one_context);
3573                popupMenu.setOnMenuItemClickListener(
3574                        item -> {
3575                            switch (item.getItemId()) {
3576                                case R.id.action_contact_details:
3577                                    activity.switchToContactDetails(
3578                                            message.getContact(), fingerprint);
3579                                    break;
3580                                case R.id.action_show_qr_code:
3581                                    activity.showQrCode(
3582                                            "xmpp:"
3583                                                    + message.getContact()
3584                                                            .getJid()
3585                                                            .asBareJid()
3586                                                            .toEscapedString());
3587                                    break;
3588                            }
3589                            return true;
3590                        });
3591            }
3592        } else {
3593            popupMenu.inflate(R.menu.account_context);
3594            final Menu menu = popupMenu.getMenu();
3595            menu.findItem(R.id.action_manage_accounts)
3596                    .setVisible(QuickConversationsService.isConversations());
3597            popupMenu.setOnMenuItemClickListener(
3598                    item -> {
3599                        final XmppActivity activity = this.activity;
3600                        if (activity == null) {
3601                            Log.e(Config.LOGTAG, "Unable to perform action. no context provided");
3602                            return true;
3603                        }
3604                        switch (item.getItemId()) {
3605                            case R.id.action_show_qr_code:
3606                                activity.showQrCode(conversation.getAccount().getShareableUri());
3607                                break;
3608                            case R.id.action_account_details:
3609                                activity.switchToAccount(
3610                                        message.getConversation().getAccount(), fingerprint);
3611                                break;
3612                            case R.id.action_manage_accounts:
3613                                AccountUtils.launchManageAccounts(activity);
3614                                break;
3615                        }
3616                        return true;
3617                    });
3618        }
3619        popupMenu.show();
3620    }
3621
3622    @Override
3623    public void onContactPictureClicked(Message message) {
3624        String fingerprint;
3625        if (message.getEncryption() == Message.ENCRYPTION_PGP
3626                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3627            fingerprint = "pgp";
3628        } else {
3629            fingerprint = message.getFingerprint();
3630        }
3631        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3632        if (received) {
3633            if (message.getConversation() instanceof Conversation
3634                    && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3635                Jid tcp = message.getTrueCounterpart();
3636                Jid user = message.getCounterpart();
3637                if (user != null && !user.isBareJid()) {
3638                    final MucOptions mucOptions =
3639                            ((Conversation) message.getConversation()).getMucOptions();
3640                    if (mucOptions.participating()
3641                            || ((Conversation) message.getConversation()).getNextCounterpart()
3642                                    != null) {
3643                        if (!mucOptions.isUserInRoom(user)
3644                                && mucOptions.findUserByRealJid(
3645                                                tcp == null ? null : tcp.asBareJid())
3646                                        == null) {
3647                            Toast.makeText(
3648                                            getActivity(),
3649                                            activity.getString(
3650                                                    R.string.user_has_left_conference,
3651                                                    user.getResource()),
3652                                            Toast.LENGTH_SHORT)
3653                                    .show();
3654                        }
3655                        highlightInConference(user.getResource());
3656                    } else {
3657                        Toast.makeText(
3658                                        getActivity(),
3659                                        R.string.you_are_not_participating,
3660                                        Toast.LENGTH_SHORT)
3661                                .show();
3662                    }
3663                }
3664                return;
3665            } else {
3666                if (!message.getContact().isSelf()) {
3667                    activity.switchToContactDetails(message.getContact(), fingerprint);
3668                    return;
3669                }
3670            }
3671        }
3672        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3673    }
3674
3675    private Activity requireActivity() {
3676        final Activity activity = getActivity();
3677        if (activity == null) {
3678            throw new IllegalStateException("Activity not attached");
3679        }
3680        return activity;
3681    }
3682}