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