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.SpannableStringBuilder;
  35import android.text.TextUtils;
  36import android.util.Log;
  37import android.view.ContextMenu;
  38import android.view.ContextMenu.ContextMenuInfo;
  39import android.view.Gravity;
  40import android.view.LayoutInflater;
  41import android.view.Menu;
  42import android.view.MenuInflater;
  43import android.view.MenuItem;
  44import android.view.MotionEvent;
  45import android.view.View;
  46import android.view.View.OnClickListener;
  47import android.view.ViewGroup;
  48import android.view.inputmethod.EditorInfo;
  49import android.view.inputmethod.InputMethodManager;
  50import android.widget.AbsListView;
  51import android.widget.AbsListView.OnScrollListener;
  52import android.widget.AdapterView;
  53import android.widget.AdapterView.AdapterContextMenuInfo;
  54import android.widget.CheckBox;
  55import android.widget.ListView;
  56import android.widget.PopupMenu;
  57import android.widget.TextView.OnEditorActionListener;
  58import android.widget.Toast;
  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;
  65import com.google.android.material.dialog.MaterialAlertDialogBuilder;
  66import com.google.common.base.Optional;
  67import com.google.common.collect.ImmutableList;
  68import eu.siacs.conversations.Config;
  69import eu.siacs.conversations.R;
  70import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  71import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  72import eu.siacs.conversations.databinding.FragmentConversationBinding;
  73import eu.siacs.conversations.entities.Account;
  74import eu.siacs.conversations.entities.Blockable;
  75import eu.siacs.conversations.entities.Contact;
  76import eu.siacs.conversations.entities.Conversation;
  77import eu.siacs.conversations.entities.Conversational;
  78import eu.siacs.conversations.entities.DownloadableFile;
  79import eu.siacs.conversations.entities.Message;
  80import eu.siacs.conversations.entities.MucOptions;
  81import eu.siacs.conversations.entities.MucOptions.User;
  82import eu.siacs.conversations.entities.Presence;
  83import eu.siacs.conversations.entities.ReadByMarker;
  84import eu.siacs.conversations.entities.Transferable;
  85import eu.siacs.conversations.entities.TransferablePlaceholder;
  86import eu.siacs.conversations.http.HttpDownloadConnection;
  87import eu.siacs.conversations.persistance.FileBackend;
  88import eu.siacs.conversations.services.CallIntegrationConnectionService;
  89import eu.siacs.conversations.services.MessageArchiveService;
  90import eu.siacs.conversations.services.QuickConversationsService;
  91import eu.siacs.conversations.services.XmppConnectionService;
  92import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  93import eu.siacs.conversations.ui.adapter.MessageAdapter;
  94import eu.siacs.conversations.ui.util.ActivityResult;
  95import eu.siacs.conversations.ui.util.Attachment;
  96import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  97import eu.siacs.conversations.ui.util.DateSeparator;
  98import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
  99import eu.siacs.conversations.ui.util.ListViewUtils;
 100import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 101import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 102import eu.siacs.conversations.ui.util.PendingItem;
 103import eu.siacs.conversations.ui.util.PresenceSelector;
 104import eu.siacs.conversations.ui.util.ScrollState;
 105import eu.siacs.conversations.ui.util.SendButtonAction;
 106import eu.siacs.conversations.ui.util.SendButtonTool;
 107import eu.siacs.conversations.ui.util.ShareUtil;
 108import eu.siacs.conversations.ui.util.ViewUtil;
 109import eu.siacs.conversations.ui.widget.EditMessage;
 110import eu.siacs.conversations.utils.AccountUtils;
 111import eu.siacs.conversations.utils.Compatibility;
 112import eu.siacs.conversations.utils.GeoHelper;
 113import eu.siacs.conversations.utils.MessageUtils;
 114import eu.siacs.conversations.utils.NickValidityChecker;
 115import eu.siacs.conversations.utils.Patterns;
 116import eu.siacs.conversations.utils.PermissionUtils;
 117import eu.siacs.conversations.utils.QuickLoader;
 118import eu.siacs.conversations.utils.StylingHelper;
 119import eu.siacs.conversations.utils.TimeFrameUtils;
 120import eu.siacs.conversations.utils.UIHelper;
 121import eu.siacs.conversations.xmpp.Jid;
 122import eu.siacs.conversations.xmpp.XmppConnection;
 123import eu.siacs.conversations.xmpp.chatstate.ChatState;
 124import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 125import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 126import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 127import eu.siacs.conversations.xmpp.jingle.Media;
 128import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 129import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 130import java.util.ArrayList;
 131import java.util.Arrays;
 132import java.util.Collection;
 133import java.util.Collections;
 134import java.util.HashSet;
 135import java.util.Iterator;
 136import java.util.List;
 137import java.util.Set;
 138import java.util.UUID;
 139import java.util.concurrent.atomic.AtomicBoolean;
 140
 141public class ConversationFragment extends XmppFragment
 142        implements EditMessage.KeyboardListener,
 143                MessageAdapter.OnContactPictureLongClicked,
 144                MessageAdapter.OnContactPictureClicked {
 145
 146    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 147    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 148    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 149    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 150    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 151    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 152    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 153    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 154    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 155    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 156    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 157    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 158    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 159    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 160    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 161    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 162    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 163
 164    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 165    public static final String STATE_CONVERSATION_UUID =
 166            ConversationFragment.class.getName() + ".uuid";
 167    public static final String STATE_SCROLL_POSITION =
 168            ConversationFragment.class.getName() + ".scroll_position";
 169    public static final String STATE_PHOTO_URI =
 170            ConversationFragment.class.getName() + ".media_previews";
 171    public static final String STATE_MEDIA_PREVIEWS =
 172            ConversationFragment.class.getName() + ".take_photo_uri";
 173    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 174
 175    private final List<Message> messageList = new ArrayList<>();
 176    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 177    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 178    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 179    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 180    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 181    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 182    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 183    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 184    public Uri mPendingEditorContent = null;
 185    protected MessageAdapter messageListAdapter;
 186    private MediaPreviewAdapter mediaPreviewAdapter;
 187    private String lastMessageUuid = null;
 188    private Conversation conversation;
 189    private FragmentConversationBinding binding;
 190    private Toast messageLoaderToast;
 191    private ConversationsActivity activity;
 192    private boolean reInitRequiredOnStart = true;
 193    private final OnClickListener clickToMuc =
 194            new OnClickListener() {
 195
 196                @Override
 197                public void onClick(View v) {
 198                    ConferenceDetailsActivity.open(getActivity(), conversation);
 199                }
 200            };
 201    private final OnClickListener leaveMuc =
 202            new OnClickListener() {
 203
 204                @Override
 205                public void onClick(View v) {
 206                    activity.xmppConnectionService.archiveConversation(conversation);
 207                }
 208            };
 209    private final OnClickListener joinMuc =
 210            new OnClickListener() {
 211
 212                @Override
 213                public void onClick(View v) {
 214                    activity.xmppConnectionService.joinMuc(conversation);
 215                }
 216            };
 217
 218    private final OnClickListener acceptJoin =
 219            new OnClickListener() {
 220                @Override
 221                public void onClick(View v) {
 222                    conversation.setAttribute("accept_non_anonymous", true);
 223                    activity.xmppConnectionService.updateConversation(conversation);
 224                    activity.xmppConnectionService.joinMuc(conversation);
 225                }
 226            };
 227
 228    private final OnClickListener enterPassword =
 229            new OnClickListener() {
 230
 231                @Override
 232                public void onClick(View v) {
 233                    MucOptions muc = conversation.getMucOptions();
 234                    String password = muc.getPassword();
 235                    if (password == null) {
 236                        password = "";
 237                    }
 238                    activity.quickPasswordEdit(
 239                            password,
 240                            value -> {
 241                                activity.xmppConnectionService.providePasswordForMuc(
 242                                        conversation, value);
 243                                return null;
 244                            });
 245                }
 246            };
 247    private final OnScrollListener mOnScrollListener =
 248            new OnScrollListener() {
 249
 250                @Override
 251                public void onScrollStateChanged(AbsListView view, int scrollState) {
 252                    if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 253                        fireReadEvent();
 254                    }
 255                }
 256
 257                @Override
 258                public void onScroll(
 259                        final AbsListView view,
 260                        int firstVisibleItem,
 261                        int visibleItemCount,
 262                        int totalItemCount) {
 263                    toggleScrollDownButton(view);
 264                    synchronized (ConversationFragment.this.messageList) {
 265                        if (firstVisibleItem < 5
 266                                && conversation != null
 267                                && conversation.messagesLoaded.compareAndSet(true, false)
 268                                && messageList.size() > 0) {
 269                            long timestamp;
 270                            if (messageList.get(0).getType() == Message.TYPE_STATUS
 271                                    && messageList.size() >= 2) {
 272                                timestamp = messageList.get(1).getTimeSent();
 273                            } else {
 274                                timestamp = messageList.get(0).getTimeSent();
 275                            }
 276                            activity.xmppConnectionService.loadMoreMessages(
 277                                    conversation,
 278                                    timestamp,
 279                                    new XmppConnectionService.OnMoreMessagesLoaded() {
 280                                        @Override
 281                                        public void onMoreMessagesLoaded(
 282                                                final int c, final Conversation conversation) {
 283                                            if (ConversationFragment.this.conversation
 284                                                    != conversation) {
 285                                                conversation.messagesLoaded.set(true);
 286                                                return;
 287                                            }
 288                                            runOnUiThread(
 289                                                    () -> {
 290                                                        synchronized (messageList) {
 291                                                            final int oldPosition =
 292                                                                    binding.messagesView
 293                                                                            .getFirstVisiblePosition();
 294                                                            Message message = null;
 295                                                            int childPos;
 296                                                            for (childPos = 0;
 297                                                                    childPos + oldPosition
 298                                                                            < messageList.size();
 299                                                                    ++childPos) {
 300                                                                message =
 301                                                                        messageList.get(
 302                                                                                oldPosition
 303                                                                                        + childPos);
 304                                                                if (message.getType()
 305                                                                        != Message.TYPE_STATUS) {
 306                                                                    break;
 307                                                                }
 308                                                            }
 309                                                            final String uuid =
 310                                                                    message != null
 311                                                                            ? message.getUuid()
 312                                                                            : null;
 313                                                            View v =
 314                                                                    binding.messagesView.getChildAt(
 315                                                                            childPos);
 316                                                            final int pxOffset =
 317                                                                    (v == null) ? 0 : v.getTop();
 318                                                            ConversationFragment.this.conversation
 319                                                                    .populateWithMessages(
 320                                                                            ConversationFragment
 321                                                                                    .this
 322                                                                                    .messageList);
 323                                                            try {
 324                                                                updateStatusMessages();
 325                                                            } catch (IllegalStateException e) {
 326                                                                Log.d(
 327                                                                        Config.LOGTAG,
 328                                                                        "caught illegal state"
 329                                                                                + " exception while"
 330                                                                                + " updating status"
 331                                                                                + " messages");
 332                                                            }
 333                                                            messageListAdapter
 334                                                                    .notifyDataSetChanged();
 335                                                            int pos =
 336                                                                    Math.max(
 337                                                                            getIndexOf(
 338                                                                                    uuid,
 339                                                                                    messageList),
 340                                                                            0);
 341                                                            binding.messagesView
 342                                                                    .setSelectionFromTop(
 343                                                                            pos, pxOffset);
 344                                                            if (messageLoaderToast != null) {
 345                                                                messageLoaderToast.cancel();
 346                                                            }
 347                                                            conversation.messagesLoaded.set(true);
 348                                                        }
 349                                                    });
 350                                        }
 351
 352                                        @Override
 353                                        public void informUser(final int resId) {
 354
 355                                            runOnUiThread(
 356                                                    () -> {
 357                                                        if (messageLoaderToast != null) {
 358                                                            messageLoaderToast.cancel();
 359                                                        }
 360                                                        if (ConversationFragment.this.conversation
 361                                                                != conversation) {
 362                                                            return;
 363                                                        }
 364                                                        messageLoaderToast =
 365                                                                Toast.makeText(
 366                                                                        view.getContext(),
 367                                                                        resId,
 368                                                                        Toast.LENGTH_LONG);
 369                                                        messageLoaderToast.show();
 370                                                    });
 371                                        }
 372                                    });
 373                        }
 374                    }
 375                }
 376            };
 377    private final EditMessage.OnCommitContentListener mEditorContentListener =
 378            new EditMessage.OnCommitContentListener() {
 379                @Override
 380                public boolean onCommitContent(
 381                        InputContentInfoCompat inputContentInfo,
 382                        int flags,
 383                        Bundle opts,
 384                        String[] contentMimeTypes) {
 385                    // try to get permission to read the image, if applicable
 386                    if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION)
 387                            != 0) {
 388                        try {
 389                            inputContentInfo.requestPermission();
 390                        } catch (Exception e) {
 391                            Log.e(
 392                                    Config.LOGTAG,
 393                                    "InputContentInfoCompat#requestPermission() failed.",
 394                                    e);
 395                            Toast.makeText(
 396                                            getActivity(),
 397                                            activity.getString(
 398                                                    R.string.no_permission_to_access_x,
 399                                                    inputContentInfo.getDescription()),
 400                                            Toast.LENGTH_LONG)
 401                                    .show();
 402                            return false;
 403                        }
 404                    }
 405                    if (hasPermissions(
 406                            REQUEST_ADD_EDITOR_CONTENT,
 407                            Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 408                        attachEditorContentToConversation(inputContentInfo.getContentUri());
 409                    } else {
 410                        mPendingEditorContent = inputContentInfo.getContentUri();
 411                    }
 412                    return true;
 413                }
 414            };
 415    private Message selectedMessage;
 416    private final OnClickListener mEnableAccountListener =
 417            new OnClickListener() {
 418                @Override
 419                public void onClick(View v) {
 420                    final Account account = conversation == null ? null : conversation.getAccount();
 421                    if (account != null) {
 422                        account.setOption(Account.OPTION_SOFT_DISABLED, false);
 423                        account.setOption(Account.OPTION_DISABLED, false);
 424                        activity.xmppConnectionService.updateAccount(account);
 425                    }
 426                }
 427            };
 428    private final OnClickListener mUnblockClickListener =
 429            new OnClickListener() {
 430                @Override
 431                public void onClick(final View v) {
 432                    v.post(() -> v.setVisibility(View.INVISIBLE));
 433                    if (conversation.isDomainBlocked()) {
 434                        BlockContactDialog.show(activity, conversation);
 435                    } else {
 436                        unblockConversation(conversation);
 437                    }
 438                }
 439            };
 440    private final OnClickListener mBlockClickListener = this::showBlockSubmenu;
 441    private final OnClickListener mAddBackClickListener =
 442            new OnClickListener() {
 443
 444                @Override
 445                public void onClick(View v) {
 446                    final Contact contact = conversation == null ? null : conversation.getContact();
 447                    if (contact != null) {
 448                        activity.xmppConnectionService.createContact(contact, true);
 449                        activity.switchToContactDetails(contact);
 450                    }
 451                }
 452            };
 453    private final View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 454    private final OnClickListener mAllowPresenceSubscription =
 455            new OnClickListener() {
 456                @Override
 457                public void onClick(View v) {
 458                    final Contact contact = conversation == null ? null : conversation.getContact();
 459                    if (contact != null) {
 460                        activity.xmppConnectionService.sendPresencePacket(
 461                                contact.getAccount(),
 462                                activity.xmppConnectionService
 463                                        .getPresenceGenerator()
 464                                        .sendPresenceUpdatesTo(contact));
 465                        hideSnackbar();
 466                    }
 467                }
 468            };
 469    protected OnClickListener clickToDecryptListener =
 470            new OnClickListener() {
 471
 472                @Override
 473                public void onClick(View v) {
 474                    PendingIntent pendingIntent =
 475                            conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 476                    if (pendingIntent != null) {
 477                        try {
 478                            getActivity()
 479                                    .startIntentSenderForResult(
 480                                            pendingIntent.getIntentSender(),
 481                                            REQUEST_DECRYPT_PGP,
 482                                            null,
 483                                            0,
 484                                            0,
 485                                            0,
 486                                            Compatibility.pgpStartIntentSenderOptions());
 487                        } catch (SendIntentException e) {
 488                            Toast.makeText(
 489                                            getActivity(),
 490                                            R.string.unable_to_connect_to_keychain,
 491                                            Toast.LENGTH_SHORT)
 492                                    .show();
 493                            conversation
 494                                    .getAccount()
 495                                    .getPgpDecryptionService()
 496                                    .continueDecryption(true);
 497                        }
 498                    }
 499                    updateSnackBar(conversation);
 500                }
 501            };
 502    private final AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 503    private final OnEditorActionListener mEditorActionListener =
 504            (v, actionId, event) -> {
 505                if (actionId == EditorInfo.IME_ACTION_SEND) {
 506                    InputMethodManager imm =
 507                            (InputMethodManager)
 508                                    activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 509                    if (imm != null && imm.isFullscreenMode()) {
 510                        imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 511                    }
 512                    sendMessage();
 513                    return true;
 514                } else {
 515                    return false;
 516                }
 517            };
 518    private final OnClickListener mScrollButtonListener =
 519            new OnClickListener() {
 520
 521                @Override
 522                public void onClick(View v) {
 523                    stopScrolling();
 524                    setSelection(binding.messagesView.getCount() - 1, true);
 525                }
 526            };
 527    private final OnClickListener mSendButtonListener =
 528            new OnClickListener() {
 529
 530                @Override
 531                public void onClick(View v) {
 532                    Object tag = v.getTag();
 533                    if (tag instanceof SendButtonAction) {
 534                        SendButtonAction action = (SendButtonAction) tag;
 535                        switch (action) {
 536                            case TAKE_PHOTO:
 537                            case RECORD_VIDEO:
 538                            case SEND_LOCATION:
 539                            case RECORD_VOICE:
 540                            case CHOOSE_PICTURE:
 541                                attachFile(action.toChoice());
 542                                break;
 543                            case CANCEL:
 544                                if (conversation != null) {
 545                                    if (conversation.setCorrectingMessage(null)) {
 546                                        binding.textinput.setText("");
 547                                        binding.textinput.append(conversation.getDraftMessage());
 548                                        conversation.setDraftMessage(null);
 549                                    } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 550                                        conversation.setNextCounterpart(null);
 551                                        binding.textinput.setText("");
 552                                    } else {
 553                                        binding.textinput.setText("");
 554                                    }
 555                                    updateChatMsgHint();
 556                                    updateSendButton();
 557                                    updateEditablity();
 558                                }
 559                                break;
 560                            default:
 561                                sendMessage();
 562                        }
 563                    } else {
 564                        sendMessage();
 565                    }
 566                }
 567            };
 568    private int completionIndex = 0;
 569    private int lastCompletionLength = 0;
 570    private String incomplete;
 571    private int lastCompletionCursor;
 572    private boolean firstWord = false;
 573    private Message mPendingDownloadableMessage;
 574
 575    private static ConversationFragment findConversationFragment(Activity activity) {
 576        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 577        if (fragment instanceof ConversationFragment) {
 578            return (ConversationFragment) fragment;
 579        }
 580        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 581        if (fragment instanceof ConversationFragment) {
 582            return (ConversationFragment) fragment;
 583        }
 584        return null;
 585    }
 586
 587    public static void startStopPending(Activity activity) {
 588        ConversationFragment fragment = findConversationFragment(activity);
 589        if (fragment != null) {
 590            fragment.messageListAdapter.startStopPending();
 591        }
 592    }
 593
 594    public static void downloadFile(Activity activity, Message message) {
 595        ConversationFragment fragment = findConversationFragment(activity);
 596        if (fragment != null) {
 597            fragment.startDownloadable(message);
 598        }
 599    }
 600
 601    public static void registerPendingMessage(Activity activity, Message message) {
 602        ConversationFragment fragment = findConversationFragment(activity);
 603        if (fragment != null) {
 604            fragment.pendingMessage.push(message);
 605        }
 606    }
 607
 608    public static void openPendingMessage(Activity activity) {
 609        ConversationFragment fragment = findConversationFragment(activity);
 610        if (fragment != null) {
 611            Message message = fragment.pendingMessage.pop();
 612            if (message != null) {
 613                fragment.messageListAdapter.openDownloadable(message);
 614            }
 615        }
 616    }
 617
 618    public static Conversation getConversation(Activity activity) {
 619        return getConversation(activity, R.id.secondary_fragment);
 620    }
 621
 622    private static Conversation getConversation(Activity activity, @IdRes int res) {
 623        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 624        if (fragment instanceof ConversationFragment) {
 625            return ((ConversationFragment) fragment).getConversation();
 626        } else {
 627            return null;
 628        }
 629    }
 630
 631    public static ConversationFragment get(Activity activity) {
 632        FragmentManager fragmentManager = activity.getFragmentManager();
 633        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 634        if (fragment instanceof ConversationFragment) {
 635            return (ConversationFragment) fragment;
 636        } else {
 637            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 638            return fragment instanceof ConversationFragment
 639                    ? (ConversationFragment) fragment
 640                    : null;
 641        }
 642    }
 643
 644    public static Conversation getConversationReliable(Activity activity) {
 645        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 646        if (conversation != null) {
 647            return conversation;
 648        }
 649        return getConversation(activity, R.id.main_fragment);
 650    }
 651
 652    private static boolean scrolledToBottom(AbsListView listView) {
 653        final int count = listView.getCount();
 654        if (count == 0) {
 655            return true;
 656        } else if (listView.getLastVisiblePosition() == count - 1) {
 657            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 658            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 659        } else {
 660            return false;
 661        }
 662    }
 663
 664    private void toggleScrollDownButton() {
 665        toggleScrollDownButton(binding.messagesView);
 666    }
 667
 668    private void toggleScrollDownButton(AbsListView listView) {
 669        if (conversation == null) {
 670            return;
 671        }
 672        if (scrolledToBottom(listView)) {
 673            lastMessageUuid = null;
 674            hideUnreadMessagesCount();
 675        } else {
 676            binding.scrollToBottomButton.setEnabled(true);
 677            binding.scrollToBottomButton.show();
 678            if (lastMessageUuid == null) {
 679                lastMessageUuid = conversation.getLatestMessage().getUuid();
 680            }
 681            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 682                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 683            }
 684        }
 685    }
 686
 687    private int getIndexOf(String uuid, List<Message> messages) {
 688        if (uuid == null) {
 689            return messages.size() - 1;
 690        }
 691        for (int i = 0; i < messages.size(); ++i) {
 692            if (uuid.equals(messages.get(i).getUuid())) {
 693                return i;
 694            }
 695        }
 696        return -1;
 697    }
 698
 699    private ScrollState getScrollPosition() {
 700        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 701        if (listView == null
 702                || listView.getCount() == 0
 703                || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 704            return null;
 705        } else {
 706            final int pos = listView.getFirstVisiblePosition();
 707            final View view = listView.getChildAt(0);
 708            if (view == null) {
 709                return null;
 710            } else {
 711                return new ScrollState(pos, view.getTop());
 712            }
 713        }
 714    }
 715
 716    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 717        if (scrollPosition != null) {
 718
 719            this.lastMessageUuid = lastMessageUuid;
 720            if (lastMessageUuid != null) {
 721                binding.unreadCountCustomView.setUnreadCount(
 722                        conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 723            }
 724            // TODO maybe this needs a 'post'
 725            this.binding.messagesView.setSelectionFromTop(
 726                    scrollPosition.position, scrollPosition.offset);
 727            toggleScrollDownButton();
 728        }
 729    }
 730
 731    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 732        if (conversation == null) {
 733            return;
 734        }
 735        activity.xmppConnectionService.attachLocationToConversation(
 736                conversation,
 737                uri,
 738                new UiCallback<Message>() {
 739
 740                    @Override
 741                    public void success(Message message) {}
 742
 743                    @Override
 744                    public void error(int errorCode, Message object) {
 745                        // TODO show possible pgp error
 746                    }
 747
 748                    @Override
 749                    public void userInputRequired(PendingIntent pi, Message object) {}
 750                });
 751    }
 752
 753    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 754        if (conversation == null) {
 755            return;
 756        }
 757        final Toast prepareFileToast =
 758                Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 759        prepareFileToast.show();
 760        activity.delegateUriPermissionsToService(uri);
 761        activity.xmppConnectionService.attachFileToConversation(
 762                conversation,
 763                uri,
 764                type,
 765                new UiInformableCallback<Message>() {
 766                    @Override
 767                    public void inform(final String text) {
 768                        hidePrepareFileToast(prepareFileToast);
 769                        runOnUiThread(() -> activity.replaceToast(text));
 770                    }
 771
 772                    @Override
 773                    public void success(Message message) {
 774                        runOnUiThread(() -> activity.hideToast());
 775                        hidePrepareFileToast(prepareFileToast);
 776                    }
 777
 778                    @Override
 779                    public void error(final int errorCode, Message message) {
 780                        hidePrepareFileToast(prepareFileToast);
 781                        runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 782                    }
 783
 784                    @Override
 785                    public void userInputRequired(PendingIntent pi, Message message) {
 786                        hidePrepareFileToast(prepareFileToast);
 787                    }
 788                });
 789    }
 790
 791    public void attachEditorContentToConversation(Uri uri) {
 792        mediaPreviewAdapter.addMediaPreviews(
 793                Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 794        toggleInputMethod();
 795    }
 796
 797    private void attachImageToConversation(Conversation conversation, Uri uri, String type) {
 798        if (conversation == null) {
 799            return;
 800        }
 801        final Toast prepareFileToast =
 802                Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 803        prepareFileToast.show();
 804        activity.delegateUriPermissionsToService(uri);
 805        activity.xmppConnectionService.attachImageToConversation(
 806                conversation,
 807                uri,
 808                type,
 809                new UiCallback<Message>() {
 810
 811                    @Override
 812                    public void userInputRequired(PendingIntent pi, Message object) {
 813                        hidePrepareFileToast(prepareFileToast);
 814                    }
 815
 816                    @Override
 817                    public void success(Message message) {
 818                        hidePrepareFileToast(prepareFileToast);
 819                    }
 820
 821                    @Override
 822                    public void error(final int error, final Message message) {
 823                        hidePrepareFileToast(prepareFileToast);
 824                        final ConversationsActivity activity = ConversationFragment.this.activity;
 825                        if (activity == null) {
 826                            return;
 827                        }
 828                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 829                    }
 830                });
 831    }
 832
 833    private void hidePrepareFileToast(final Toast prepareFileToast) {
 834        if (prepareFileToast != null && activity != null) {
 835            activity.runOnUiThread(prepareFileToast::cancel);
 836        }
 837    }
 838
 839    private void sendMessage() {
 840        if (mediaPreviewAdapter.hasAttachments()) {
 841            commitAttachments();
 842            return;
 843        }
 844        final Editable text = this.binding.textinput.getText();
 845        final String body = text == null ? "" : text.toString();
 846        final Conversation conversation = this.conversation;
 847        if (body.isEmpty() || conversation == null) {
 848            return;
 849        }
 850        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_TEXT)) {
 851            return;
 852        }
 853        final Message message;
 854        if (conversation.getCorrectingMessage() == null) {
 855            message = new Message(conversation, body, conversation.getNextEncryption());
 856            Message.configurePrivateMessage(message);
 857        } else {
 858            message = conversation.getCorrectingMessage();
 859            message.setBody(body);
 860            message.putEdited(message.getUuid(), message.getServerMsgId());
 861            message.setUuid(UUID.randomUUID().toString());
 862        }
 863        switch (conversation.getNextEncryption()) {
 864            case Message.ENCRYPTION_PGP:
 865                sendPgpMessage(message);
 866                break;
 867            default:
 868                sendMessage(message);
 869        }
 870    }
 871
 872    private boolean trustKeysIfNeeded(final Conversation conversation, final int requestCode) {
 873        return conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL
 874                && trustKeysIfNeeded(requestCode);
 875    }
 876
 877    protected boolean trustKeysIfNeeded(int requestCode) {
 878        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 879        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 880        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 881        boolean hasUndecidedOwn =
 882                !axolotlService
 883                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided())
 884                        .isEmpty();
 885        boolean hasUndecidedContacts =
 886                !axolotlService
 887                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets)
 888                        .isEmpty();
 889        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 890        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 891        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 892        if (hasUndecidedOwn
 893                || hasUndecidedContacts
 894                || hasPendingKeys
 895                || hasNoTrustedKeys
 896                || hasUnaccepted
 897                || downloadInProgress) {
 898            axolotlService.createSessionsIfNeeded(conversation);
 899            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 900            String[] contacts = new String[targets.size()];
 901            for (int i = 0; i < contacts.length; ++i) {
 902                contacts[i] = targets.get(i).toString();
 903            }
 904            intent.putExtra("contacts", contacts);
 905            intent.putExtra(
 906                    EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toString());
 907            intent.putExtra("conversation", conversation.getUuid());
 908            startActivityForResult(intent, requestCode);
 909            return true;
 910        } else {
 911            return false;
 912        }
 913    }
 914
 915    public void updateChatMsgHint() {
 916        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 917        if (conversation.getCorrectingMessage() != null) {
 918            this.binding.textInputHint.setVisibility(View.GONE);
 919            this.binding.textinput.setHint(R.string.send_corrected_message);
 920        } else if (multi && conversation.getNextCounterpart() != null) {
 921            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 922            this.binding.textInputHint.setVisibility(View.VISIBLE);
 923            this.binding.textInputHint.setText(
 924                    getString(
 925                            R.string.send_private_message_to,
 926                            conversation.getNextCounterpart().getResource()));
 927        } else if (multi && !conversation.getMucOptions().participating()) {
 928            this.binding.textInputHint.setVisibility(View.GONE);
 929            this.binding.textinput.setHint(R.string.you_are_not_participating);
 930        } else {
 931            this.binding.textInputHint.setVisibility(View.GONE);
 932            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 933            getActivity().invalidateOptionsMenu();
 934        }
 935    }
 936
 937    public void setupIme() {
 938        this.binding.textinput.refreshIme();
 939    }
 940
 941    private void handleActivityResult(ActivityResult activityResult) {
 942        if (activityResult.resultCode == Activity.RESULT_OK) {
 943            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 944        } else {
 945            handleNegativeActivityResult(activityResult.requestCode);
 946        }
 947    }
 948
 949    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 950        switch (requestCode) {
 951            case REQUEST_TRUST_KEYS_TEXT:
 952                sendMessage();
 953                break;
 954            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 955                commitAttachments();
 956                break;
 957            case REQUEST_START_AUDIO_CALL:
 958                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
 959                break;
 960            case REQUEST_START_VIDEO_CALL:
 961                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
 962                break;
 963            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 964                final List<Attachment> imageUris =
 965                        Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 966                mediaPreviewAdapter.addMediaPreviews(imageUris);
 967                toggleInputMethod();
 968                break;
 969            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 970                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 971                if (takePhotoUri != null) {
 972                    mediaPreviewAdapter.addMediaPreviews(
 973                            Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 974                    toggleInputMethod();
 975                } else {
 976                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 977                }
 978                break;
 979            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 980            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 981            case ATTACHMENT_CHOICE_RECORD_VOICE:
 982                final Attachment.Type type =
 983                        requestCode == ATTACHMENT_CHOICE_RECORD_VOICE
 984                                ? Attachment.Type.RECORDING
 985                                : Attachment.Type.FILE;
 986                final List<Attachment> fileUris =
 987                        Attachment.extractAttachments(getActivity(), data, type);
 988                mediaPreviewAdapter.addMediaPreviews(fileUris);
 989                toggleInputMethod();
 990                break;
 991            case ATTACHMENT_CHOICE_LOCATION:
 992                final double latitude = data.getDoubleExtra("latitude", 0);
 993                final double longitude = data.getDoubleExtra("longitude", 0);
 994                final int accuracy = data.getIntExtra("accuracy", 0);
 995                final Uri geo;
 996                if (accuracy > 0) {
 997                    geo = Uri.parse(String.format("geo:%s,%s;u=%s", latitude, longitude, accuracy));
 998                } else {
 999                    geo = Uri.parse(String.format("geo:%s,%s", latitude, longitude));
1000                }
1001                mediaPreviewAdapter.addMediaPreviews(
1002                        Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
1003                toggleInputMethod();
1004                break;
1005            case REQUEST_INVITE_TO_CONVERSATION:
1006                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
1007                if (invite != null) {
1008                    if (invite.execute(activity)) {
1009                        activity.mToast =
1010                                Toast.makeText(
1011                                        activity, R.string.creating_conference, Toast.LENGTH_LONG);
1012                        activity.mToast.show();
1013                    }
1014                }
1015                break;
1016        }
1017    }
1018
1019    private void commitAttachments() {
1020        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
1021        if (anyNeedsExternalStoragePermission(attachments)
1022                && !hasPermissions(
1023                        REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1024            return;
1025        }
1026        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_ATTACHMENTS)) {
1027            return;
1028        }
1029        final PresenceSelector.OnPresenceSelected callback =
1030                () -> {
1031                    for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
1032                        final Attachment attachment = i.next();
1033                        if (attachment.getType() == Attachment.Type.LOCATION) {
1034                            attachLocationToConversation(conversation, attachment.getUri());
1035                        } else if (attachment.getType() == Attachment.Type.IMAGE) {
1036                            Log.d(
1037                                    Config.LOGTAG,
1038                                    "ConversationsActivity.commitAttachments() - attaching image to"
1039                                            + " conversations. CHOOSE_IMAGE");
1040                            attachImageToConversation(
1041                                    conversation, attachment.getUri(), attachment.getMime());
1042                        } else {
1043                            Log.d(
1044                                    Config.LOGTAG,
1045                                    "ConversationsActivity.commitAttachments() - attaching file to"
1046                                        + " conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
1047                            attachFileToConversation(
1048                                    conversation, attachment.getUri(), attachment.getMime());
1049                        }
1050                    }
1051                    mediaPreviewAdapter.notifyDataSetChanged();
1052                    toggleInputMethod();
1053                };
1054        if (conversation == null
1055                || conversation.getMode() == Conversation.MODE_MULTI
1056                || Attachment.canBeSendInBand(attachments)
1057                || (conversation.getAccount().httpUploadAvailable()
1058                        && FileBackend.allFilesUnderSize(
1059                                getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
1060            callback.onPresenceSelected();
1061        } else {
1062            activity.selectPresence(conversation, callback);
1063        }
1064    }
1065
1066    private static boolean anyNeedsExternalStoragePermission(
1067            final Collection<Attachment> attachments) {
1068        for (final Attachment attachment : attachments) {
1069            if (attachment.getType() != Attachment.Type.LOCATION) {
1070                return true;
1071            }
1072        }
1073        return false;
1074    }
1075
1076    public void toggleInputMethod() {
1077        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
1078        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
1079        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
1080        updateSendButton();
1081    }
1082
1083    private void handleNegativeActivityResult(int requestCode) {
1084        switch (requestCode) {
1085            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1086                if (pendingTakePhotoUri.clear()) {
1087                    Log.d(
1088                            Config.LOGTAG,
1089                            "cleared pending photo uri after negative activity result");
1090                }
1091                break;
1092        }
1093    }
1094
1095    @Override
1096    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
1097        super.onActivityResult(requestCode, resultCode, data);
1098        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
1099        if (activity != null && activity.xmppConnectionService != null) {
1100            handleActivityResult(activityResult);
1101        } else {
1102            this.postponedActivityResult.push(activityResult);
1103        }
1104    }
1105
1106    public void unblockConversation(final Blockable conversation) {
1107        activity.xmppConnectionService.sendUnblockRequest(conversation);
1108    }
1109
1110    @Override
1111    public void onAttach(Activity activity) {
1112        super.onAttach(activity);
1113        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
1114        if (activity instanceof ConversationsActivity) {
1115            this.activity = (ConversationsActivity) activity;
1116        } else {
1117            throw new IllegalStateException(
1118                    "Trying to attach fragment to activity that is not the ConversationsActivity");
1119        }
1120    }
1121
1122    @Override
1123    public void onDetach() {
1124        super.onDetach();
1125        this.activity = null; // TODO maybe not a good idea since some callbacks really need it
1126    }
1127
1128    @Override
1129    public void onCreate(Bundle savedInstanceState) {
1130        super.onCreate(savedInstanceState);
1131        setHasOptionsMenu(true);
1132    }
1133
1134    @Override
1135    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
1136        menuInflater.inflate(R.menu.fragment_conversation, menu);
1137        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
1138        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
1139        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
1140        final MenuItem menuMute = menu.findItem(R.id.action_mute);
1141        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
1142        final MenuItem menuCall = menu.findItem(R.id.action_call);
1143        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
1144        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
1145        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
1146
1147        if (conversation != null) {
1148            if (conversation.getMode() == Conversation.MODE_MULTI) {
1149                menuContactDetails.setVisible(false);
1150                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
1151                menuMucDetails.setTitle(
1152                        conversation.getMucOptions().isPrivateAndNonAnonymous()
1153                                ? R.string.action_muc_details
1154                                : R.string.channel_details);
1155                menuCall.setVisible(false);
1156                menuOngoingCall.setVisible(false);
1157            } else {
1158                final XmppConnectionService service =
1159                        activity == null ? null : activity.xmppConnectionService;
1160                final Optional<OngoingRtpSession> ongoingRtpSession =
1161                        service == null
1162                                ? Optional.absent()
1163                                : service.getJingleConnectionManager()
1164                                        .getOngoingRtpConnection(conversation.getContact());
1165                if (ongoingRtpSession.isPresent()) {
1166                    menuOngoingCall.setVisible(true);
1167                    menuCall.setVisible(false);
1168                } else {
1169                    menuOngoingCall.setVisible(false);
1170                    // use RtpCapability.check(conversation.getContact()); to check if contact
1171                    // actually has support
1172                    final boolean cameraAvailable =
1173                            activity != null && activity.isCameraFeatureAvailable();
1174                    menuCall.setVisible(true);
1175                    menuVideoCall.setVisible(cameraAvailable);
1176                }
1177                menuContactDetails.setVisible(!this.conversation.withSelf());
1178                menuMucDetails.setVisible(false);
1179                menuInviteContact.setVisible(
1180                        service != null
1181                                && service.findConferenceServer(conversation.getAccount()) != null);
1182            }
1183            if (conversation.isMuted()) {
1184                menuMute.setVisible(false);
1185            } else {
1186                menuUnmute.setVisible(false);
1187            }
1188            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1189            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1190            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1191                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1192            } else {
1193                menuTogglePinned.setTitle(R.string.add_to_favorites);
1194            }
1195        }
1196        super.onCreateOptionsMenu(menu, menuInflater);
1197    }
1198
1199    @Override
1200    public View onCreateView(
1201            final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1202        this.binding =
1203                DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1204        binding.getRoot().setOnClickListener(null); // TODO why the fuck did we do this?
1205
1206        binding.textinput.addTextChangedListener(
1207                new StylingHelper.MessageEditorStyler(binding.textinput));
1208
1209        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1210        binding.textinput.setRichContentListener(new String[] {"image/*"}, mEditorContentListener);
1211
1212        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1213
1214        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1215        binding.messagesView.setOnScrollListener(mOnScrollListener);
1216        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1217        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1218        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1219        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1220        messageListAdapter.setOnContactPictureClicked(this);
1221        messageListAdapter.setOnContactPictureLongClicked(this);
1222        binding.messagesView.setAdapter(messageListAdapter);
1223
1224        registerForContextMenu(binding.messagesView);
1225
1226        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1227            this.binding.textinput.setCustomInsertionActionModeCallback(
1228                    new EditMessageActionModeCallback(this.binding.textinput));
1229        }
1230
1231        return binding.getRoot();
1232    }
1233
1234    @Override
1235    public void onDestroyView() {
1236        super.onDestroyView();
1237        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1238        messageListAdapter.setOnContactPictureClicked(null);
1239        messageListAdapter.setOnContactPictureLongClicked(null);
1240    }
1241
1242    private void quoteText(String text) {
1243        if (binding.textinput.isEnabled()) {
1244            binding.textinput.insertAsQuote(text);
1245            binding.textinput.requestFocus();
1246            InputMethodManager inputMethodManager =
1247                    (InputMethodManager)
1248                            getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1249            if (inputMethodManager != null) {
1250                inputMethodManager.showSoftInput(
1251                        binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1252            }
1253        }
1254    }
1255
1256    private void quoteMessage(Message message) {
1257        quoteText(MessageUtils.prepareQuote(message));
1258    }
1259
1260    @Override
1261    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1262        // This should cancel any remaining click events that would otherwise trigger links
1263        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1264        synchronized (this.messageList) {
1265            super.onCreateContextMenu(menu, v, menuInfo);
1266            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1267            this.selectedMessage = this.messageList.get(acmi.position);
1268            populateContextMenu(menu);
1269        }
1270    }
1271
1272    private void populateContextMenu(final ContextMenu menu) {
1273        final Message m = this.selectedMessage;
1274        final Transferable t = m.getTransferable();
1275        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1276
1277            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE
1278                    || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1279                return;
1280            }
1281
1282            if (m.getStatus() == Message.STATUS_RECEIVED
1283                    && t != null
1284                    && (t.getStatus() == Transferable.STATUS_CANCELLED
1285                            || t.getStatus() == Transferable.STATUS_FAILED)) {
1286                return;
1287            }
1288
1289            final boolean deleted = m.isDeleted();
1290            final boolean encrypted =
1291                    m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1292                            || m.getEncryption() == Message.ENCRYPTION_PGP;
1293            final boolean receiving =
1294                    m.getStatus() == Message.STATUS_RECEIVED
1295                            && (t instanceof JingleFileTransferConnection
1296                                    || t instanceof HttpDownloadConnection);
1297            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1298            menu.setHeaderTitle(R.string.message_options);
1299            final MenuItem addReaction = menu.findItem(R.id.action_add_reaction);
1300            final MenuItem reportAndBlock = menu.findItem(R.id.action_report_and_block);
1301            final MenuItem openWith = menu.findItem(R.id.open_with);
1302            final MenuItem copyMessage = menu.findItem(R.id.copy_message);
1303            final MenuItem copyLink = menu.findItem(R.id.copy_link);
1304            final MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1305            final MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1306            final MenuItem correctMessage = menu.findItem(R.id.correct_message);
1307            final MenuItem shareWith = menu.findItem(R.id.share_with);
1308            final MenuItem sendAgain = menu.findItem(R.id.send_again);
1309            final MenuItem retryAsP2P = menu.findItem(R.id.send_again_as_p2p);
1310            final MenuItem copyUrl = menu.findItem(R.id.copy_url);
1311            final MenuItem downloadFile = menu.findItem(R.id.download_file);
1312            final MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1313            final MenuItem deleteFile = menu.findItem(R.id.delete_file);
1314            final MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1315            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1316            final boolean showError =
1317                    m.getStatus() == Message.STATUS_SEND_FAILED
1318                            && m.getErrorMessage() != null
1319                            && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1320            final Conversational conversational = m.getConversation();
1321            if (m.getStatus() == Message.STATUS_RECEIVED
1322                    && conversational instanceof Conversation c) {
1323                final XmppConnection connection = c.getAccount().getXmppConnection();
1324                if (c.isWithStranger()
1325                        && m.getServerMsgId() != null
1326                        && !c.isBlocked()
1327                        && connection != null
1328                        && connection.getFeatures().spamReporting()) {
1329                    reportAndBlock.setVisible(true);
1330                }
1331            }
1332            if (conversational instanceof Conversation c) {
1333                addReaction.setVisible(
1334                        !showError
1335                                && !m.isDeleted()
1336                                && (c.getMode() == Conversational.MODE_SINGLE
1337                                        || (c.getMucOptions().occupantId()
1338                                                && c.getMucOptions().participating())));
1339            } else {
1340                addReaction.setVisible(false);
1341            }
1342            if (!m.isFileOrImage()
1343                    && !encrypted
1344                    && !m.isGeoUri()
1345                    && !m.treatAsDownloadable()
1346                    && !unInitiatedButKnownSize
1347                    && t == null) {
1348                copyMessage.setVisible(true);
1349                quoteMessage.setVisible(!showError && !MessageUtils.prepareQuote(m).isEmpty());
1350                final String scheme =
1351                        ShareUtil.getLinkScheme(new SpannableStringBuilder(m.getBody()));
1352                if ("xmpp".equals(scheme)) {
1353                    copyLink.setTitle(R.string.copy_jabber_id);
1354                    copyLink.setVisible(true);
1355                } else if (scheme != null) {
1356                    copyLink.setVisible(true);
1357                }
1358            }
1359            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1360                retryDecryption.setVisible(true);
1361            }
1362            if (!showError
1363                    && m.getType() == Message.TYPE_TEXT
1364                    && !m.isGeoUri()
1365                    && m.isLastCorrectableMessage()
1366                    && m.getConversation() instanceof Conversation) {
1367                correctMessage.setVisible(true);
1368            }
1369            if ((m.isFileOrImage() && !deleted && !receiving)
1370                    || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())
1371                            && !unInitiatedButKnownSize
1372                            && t == null) {
1373                shareWith.setVisible(true);
1374            }
1375            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1376                sendAgain.setVisible(true);
1377                final var fileNotUploaded = m.isFileOrImage() && !m.hasFileOnRemoteHost();
1378                final var isPeerOnline =
1379                        conversational.getMode() == Conversation.MODE_SINGLE
1380                                && (conversational instanceof Conversation c)
1381                                && !c.getContact().getPresences().isEmpty();
1382                retryAsP2P.setVisible(fileNotUploaded && isPeerOnline);
1383            }
1384            if (m.hasFileOnRemoteHost()
1385                    || m.isGeoUri()
1386                    || m.treatAsDownloadable()
1387                    || unInitiatedButKnownSize
1388                    || t instanceof HttpDownloadConnection) {
1389                copyUrl.setVisible(true);
1390            }
1391            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1392                downloadFile.setVisible(true);
1393                downloadFile.setTitle(
1394                        activity.getString(
1395                                R.string.download_x_file,
1396                                UIHelper.getFileDescriptionString(activity, m)));
1397            }
1398            final boolean waitingOfferedSending =
1399                    m.getStatus() == Message.STATUS_WAITING
1400                            || m.getStatus() == Message.STATUS_UNSEND
1401                            || m.getStatus() == Message.STATUS_OFFERED;
1402            final boolean cancelable =
1403                    (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1404            if (cancelable) {
1405                cancelTransmission.setVisible(true);
1406            }
1407            if (m.isFileOrImage() && !deleted && !cancelable) {
1408                final String path = m.getRelativeFilePath();
1409                if (path == null
1410                        || !path.startsWith("/")
1411                        || FileBackend.inConversationsDirectory(requireActivity(), path)) {
1412                    deleteFile.setVisible(true);
1413                    deleteFile.setTitle(
1414                            activity.getString(
1415                                    R.string.delete_x_file,
1416                                    UIHelper.getFileDescriptionString(activity, m)));
1417                }
1418            }
1419            if (showError) {
1420                showErrorMessage.setVisible(true);
1421            }
1422            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1423            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m))
1424                    || (mime != null && mime.startsWith("audio/"))) {
1425                openWith.setVisible(true);
1426            }
1427        }
1428    }
1429
1430    @Override
1431    public boolean onContextItemSelected(MenuItem item) {
1432        switch (item.getItemId()) {
1433            case R.id.share_with:
1434                ShareUtil.share(activity, selectedMessage);
1435                return true;
1436            case R.id.correct_message:
1437                correctMessage(selectedMessage);
1438                return true;
1439            case R.id.copy_message:
1440                ShareUtil.copyToClipboard(activity, selectedMessage);
1441                return true;
1442            case R.id.copy_link:
1443                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1444                return true;
1445            case R.id.quote_message:
1446                quoteMessage(selectedMessage);
1447                return true;
1448            case R.id.send_again:
1449                resendMessage(selectedMessage, false);
1450                return true;
1451            case R.id.send_again_as_p2p:
1452                resendMessage(selectedMessage, true);
1453                return true;
1454            case R.id.copy_url:
1455                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1456                return true;
1457            case R.id.download_file:
1458                startDownloadable(selectedMessage);
1459                return true;
1460            case R.id.cancel_transmission:
1461                cancelTransmission(selectedMessage);
1462                return true;
1463            case R.id.retry_decryption:
1464                retryDecryption(selectedMessage);
1465                return true;
1466            case R.id.delete_file:
1467                deleteFile(selectedMessage);
1468                return true;
1469            case R.id.show_error_message:
1470                showErrorMessage(selectedMessage);
1471                return true;
1472            case R.id.open_with:
1473                openWith(selectedMessage);
1474                return true;
1475            case R.id.action_report_and_block:
1476                reportMessage(selectedMessage);
1477                return true;
1478            case R.id.action_add_reaction:
1479                addReaction(selectedMessage);
1480                return true;
1481            default:
1482                return super.onContextItemSelected(item);
1483        }
1484    }
1485
1486    @Override
1487    public boolean onOptionsItemSelected(final MenuItem item) {
1488        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1489            return false;
1490        } else if (conversation == null) {
1491            return super.onOptionsItemSelected(item);
1492        }
1493        switch (item.getItemId()) {
1494            case R.id.encryption_choice_axolotl:
1495            case R.id.encryption_choice_pgp:
1496            case R.id.encryption_choice_none:
1497                handleEncryptionSelection(item);
1498                break;
1499            case R.id.attach_choose_picture:
1500            case R.id.attach_take_picture:
1501            case R.id.attach_record_video:
1502            case R.id.attach_choose_file:
1503            case R.id.attach_record_voice:
1504            case R.id.attach_location:
1505                handleAttachmentSelection(item);
1506                break;
1507            case R.id.action_search:
1508                startSearch();
1509                break;
1510            case R.id.action_archive:
1511                activity.xmppConnectionService.archiveConversation(conversation);
1512                break;
1513            case R.id.action_contact_details:
1514                activity.switchToContactDetails(conversation.getContact());
1515                break;
1516            case R.id.action_muc_details:
1517                ConferenceDetailsActivity.open(getActivity(), conversation);
1518                break;
1519            case R.id.action_invite:
1520                startActivityForResult(
1521                        ChooseContactActivity.create(activity, conversation),
1522                        REQUEST_INVITE_TO_CONVERSATION);
1523                break;
1524            case R.id.action_clear_history:
1525                clearHistoryDialog(conversation);
1526                break;
1527            case R.id.action_mute:
1528                muteConversationDialog(conversation);
1529                break;
1530            case R.id.action_unmute:
1531                unMuteConversation(conversation);
1532                break;
1533            case R.id.action_block:
1534            case R.id.action_unblock:
1535                final Activity activity = getActivity();
1536                if (activity instanceof XmppActivity) {
1537                    BlockContactDialog.show((XmppActivity) activity, conversation);
1538                }
1539                break;
1540            case R.id.action_audio_call:
1541                checkPermissionAndTriggerAudioCall();
1542                break;
1543            case R.id.action_video_call:
1544                checkPermissionAndTriggerVideoCall();
1545                break;
1546            case R.id.action_ongoing_call:
1547                returnToOngoingCall();
1548                break;
1549            case R.id.action_toggle_pinned:
1550                togglePinned();
1551                break;
1552            default:
1553                break;
1554        }
1555        return super.onOptionsItemSelected(item);
1556    }
1557
1558    private void startSearch() {
1559        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1560        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1561        startActivity(intent);
1562    }
1563
1564    private void returnToOngoingCall() {
1565        final Optional<OngoingRtpSession> ongoingRtpSession =
1566                activity.xmppConnectionService
1567                        .getJingleConnectionManager()
1568                        .getOngoingRtpConnection(conversation.getContact());
1569        if (ongoingRtpSession.isPresent()) {
1570            final OngoingRtpSession id = ongoingRtpSession.get();
1571            final Intent intent = new Intent(getActivity(), RtpSessionActivity.class);
1572            intent.setAction(Intent.ACTION_VIEW);
1573            intent.putExtra(
1574                    RtpSessionActivity.EXTRA_ACCOUNT,
1575                    id.getAccount().getJid().asBareJid().toString());
1576            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toString());
1577            if (id instanceof AbstractJingleConnection) {
1578                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1579                startActivity(intent);
1580            } else if (id instanceof JingleConnectionManager.RtpSessionProposal proposal) {
1581                if (Media.audioOnly(proposal.media)) {
1582                    intent.putExtra(
1583                            RtpSessionActivity.EXTRA_LAST_ACTION,
1584                            RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1585                } else {
1586                    intent.putExtra(
1587                            RtpSessionActivity.EXTRA_LAST_ACTION,
1588                            RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1589                }
1590                intent.putExtra(RtpSessionActivity.EXTRA_PROPOSED_SESSION_ID, proposal.sessionId);
1591                startActivity(intent);
1592            }
1593        }
1594    }
1595
1596    private void togglePinned() {
1597        final boolean pinned =
1598                conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1599        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1600        activity.xmppConnectionService.updateConversation(conversation);
1601        activity.invalidateOptionsMenu();
1602    }
1603
1604    private void checkPermissionAndTriggerAudioCall() {
1605        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1606            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1607            return;
1608        }
1609        final List<String> permissions;
1610        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1611            permissions =
1612                    Arrays.asList(
1613                            Manifest.permission.RECORD_AUDIO,
1614                            Manifest.permission.BLUETOOTH_CONNECT);
1615        } else {
1616            permissions = Collections.singletonList(Manifest.permission.RECORD_AUDIO);
1617        }
1618        if (hasPermissions(REQUEST_START_AUDIO_CALL, permissions)) {
1619            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1620        }
1621    }
1622
1623    private void checkPermissionAndTriggerVideoCall() {
1624        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1625            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1626            return;
1627        }
1628        final List<String> permissions;
1629        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1630            permissions =
1631                    Arrays.asList(
1632                            Manifest.permission.RECORD_AUDIO,
1633                            Manifest.permission.CAMERA,
1634                            Manifest.permission.BLUETOOTH_CONNECT);
1635        } else {
1636            permissions =
1637                    Arrays.asList(Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA);
1638        }
1639        if (hasPermissions(REQUEST_START_VIDEO_CALL, permissions)) {
1640            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1641        }
1642    }
1643
1644    private void triggerRtpSession(final String action) {
1645        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy()) {
1646            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG)
1647                    .show();
1648            return;
1649        }
1650        final Account account = conversation.getAccount();
1651        if (account.setOption(Account.OPTION_SOFT_DISABLED, false)) {
1652            activity.xmppConnectionService.updateAccount(account);
1653        }
1654        final Contact contact = conversation.getContact();
1655        if (Config.USE_JINGLE_MESSAGE_INIT && RtpCapability.jmiSupport(contact)) {
1656            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1657        } else {
1658            final RtpCapability.Capability capability;
1659            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1660                capability = RtpCapability.Capability.VIDEO;
1661            } else {
1662                capability = RtpCapability.Capability.AUDIO;
1663            }
1664            PresenceSelector.selectFullJidForDirectRtpConnection(
1665                    activity,
1666                    contact,
1667                    capability,
1668                    fullJid -> {
1669                        triggerRtpSession(contact.getAccount(), fullJid, action);
1670                    });
1671        }
1672    }
1673
1674    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1675        CallIntegrationConnectionService.placeCall(
1676                activity.xmppConnectionService,
1677                account,
1678                with,
1679                RtpSessionActivity.actionToMedia(action));
1680    }
1681
1682    private void handleAttachmentSelection(MenuItem item) {
1683        switch (item.getItemId()) {
1684            case R.id.attach_choose_picture:
1685                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1686                break;
1687            case R.id.attach_take_picture:
1688                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1689                break;
1690            case R.id.attach_record_video:
1691                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1692                break;
1693            case R.id.attach_choose_file:
1694                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1695                break;
1696            case R.id.attach_record_voice:
1697                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1698                break;
1699            case R.id.attach_location:
1700                attachFile(ATTACHMENT_CHOICE_LOCATION);
1701                break;
1702        }
1703    }
1704
1705    private void handleEncryptionSelection(MenuItem item) {
1706        if (conversation == null) {
1707            return;
1708        }
1709        final boolean updated;
1710        switch (item.getItemId()) {
1711            case R.id.encryption_choice_none:
1712                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1713                item.setChecked(true);
1714                break;
1715            case R.id.encryption_choice_pgp:
1716                if (activity.hasPgp()) {
1717                    if (conversation.getAccount().getPgpSignature() != null) {
1718                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1719                        item.setChecked(true);
1720                    } else {
1721                        updated = false;
1722                        activity.announcePgp(
1723                                conversation.getAccount(),
1724                                conversation,
1725                                null,
1726                                activity.onOpenPGPKeyPublished);
1727                    }
1728                } else {
1729                    activity.showInstallPgpDialog();
1730                    updated = false;
1731                }
1732                break;
1733            case R.id.encryption_choice_axolotl:
1734                Log.d(
1735                        Config.LOGTAG,
1736                        AxolotlService.getLogprefix(conversation.getAccount())
1737                                + "Enabled axolotl for Contact "
1738                                + conversation.getContact().getJid());
1739                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1740                item.setChecked(true);
1741                break;
1742            default:
1743                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1744                break;
1745        }
1746        if (updated) {
1747            activity.xmppConnectionService.updateConversation(conversation);
1748        }
1749        updateChatMsgHint();
1750        getActivity().invalidateOptionsMenu();
1751        activity.refreshUi();
1752    }
1753
1754    public void attachFile(final int attachmentChoice) {
1755        attachFile(attachmentChoice, true);
1756    }
1757
1758    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1759        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1760            if (!hasPermissions(
1761                    attachmentChoice,
1762                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1763                    Manifest.permission.RECORD_AUDIO)) {
1764                return;
1765            }
1766        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO
1767                || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1768            if (!hasPermissions(
1769                    attachmentChoice,
1770                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1771                    Manifest.permission.CAMERA)) {
1772                return;
1773            }
1774        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1775            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1776                return;
1777            }
1778        }
1779        if (updateRecentlyUsed) {
1780            storeRecentlyUsedQuickAction(attachmentChoice);
1781        }
1782        final int encryption = conversation.getNextEncryption();
1783        final int mode = conversation.getMode();
1784        if (encryption == Message.ENCRYPTION_PGP) {
1785            if (activity.hasPgp()) {
1786                if (mode == Conversation.MODE_SINGLE
1787                        && conversation.getContact().getPgpKeyId() != 0) {
1788                    activity.xmppConnectionService
1789                            .getPgpEngine()
1790                            .hasKey(
1791                                    conversation.getContact(),
1792                                    new UiCallback<Contact>() {
1793
1794                                        @Override
1795                                        public void userInputRequired(
1796                                                PendingIntent pi, Contact contact) {
1797                                            startPendingIntent(pi, attachmentChoice);
1798                                        }
1799
1800                                        @Override
1801                                        public void success(Contact contact) {
1802                                            invokeAttachFileIntent(attachmentChoice);
1803                                        }
1804
1805                                        @Override
1806                                        public void error(int error, Contact contact) {
1807                                            activity.replaceToast(getString(error));
1808                                        }
1809                                    });
1810                } else if (mode == Conversation.MODE_MULTI
1811                        && conversation.getMucOptions().pgpKeysInUse()) {
1812                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1813                        Toast warning =
1814                                Toast.makeText(
1815                                        getActivity(),
1816                                        R.string.missing_public_keys,
1817                                        Toast.LENGTH_LONG);
1818                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1819                        warning.show();
1820                    }
1821                    invokeAttachFileIntent(attachmentChoice);
1822                } else {
1823                    showNoPGPKeyDialog(
1824                            false,
1825                            (dialog, which) -> {
1826                                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1827                                activity.xmppConnectionService.updateConversation(conversation);
1828                                invokeAttachFileIntent(attachmentChoice);
1829                            });
1830                }
1831            } else {
1832                activity.showInstallPgpDialog();
1833            }
1834        } else {
1835            invokeAttachFileIntent(attachmentChoice);
1836        }
1837    }
1838
1839    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1840        try {
1841            activity.getPreferences()
1842                    .edit()
1843                    .putString(
1844                            RECENTLY_USED_QUICK_ACTION,
1845                            SendButtonAction.of(attachmentChoice).toString())
1846                    .apply();
1847        } catch (IllegalArgumentException e) {
1848            // just do not save
1849        }
1850    }
1851
1852    @Override
1853    public void onRequestPermissionsResult(
1854            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1855        final PermissionUtils.PermissionResult permissionResult =
1856                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
1857        if (grantResults.length > 0) {
1858            if (allGranted(permissionResult.grantResults)) {
1859                switch (requestCode) {
1860                    case REQUEST_START_DOWNLOAD:
1861                        if (this.mPendingDownloadableMessage != null) {
1862                            startDownloadable(this.mPendingDownloadableMessage);
1863                        }
1864                        break;
1865                    case REQUEST_ADD_EDITOR_CONTENT:
1866                        if (this.mPendingEditorContent != null) {
1867                            attachEditorContentToConversation(this.mPendingEditorContent);
1868                        }
1869                        break;
1870                    case REQUEST_COMMIT_ATTACHMENTS:
1871                        commitAttachments();
1872                        break;
1873                    case REQUEST_START_AUDIO_CALL:
1874                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1875                        break;
1876                    case REQUEST_START_VIDEO_CALL:
1877                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1878                        break;
1879                    default:
1880                        attachFile(requestCode);
1881                        break;
1882                }
1883            } else {
1884                @StringRes int res;
1885                String firstDenied =
1886                        getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
1887                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1888                    res = R.string.no_microphone_permission;
1889                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1890                    res = R.string.no_camera_permission;
1891                } else {
1892                    res = R.string.no_storage_permission;
1893                }
1894                Toast.makeText(
1895                                getActivity(),
1896                                getString(res, getString(R.string.app_name)),
1897                                Toast.LENGTH_SHORT)
1898                        .show();
1899            }
1900        }
1901        if (writeGranted(grantResults, permissions)) {
1902            if (activity != null && activity.xmppConnectionService != null) {
1903                activity.xmppConnectionService.getBitmapCache().evictAll();
1904                activity.xmppConnectionService.restartFileObserver();
1905            }
1906            refresh();
1907        }
1908        if (cameraGranted(grantResults, permissions) || audioGranted(grantResults, permissions)) {
1909            XmppConnectionService.toggleForegroundService(activity);
1910        }
1911    }
1912
1913    public void startDownloadable(Message message) {
1914        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1915            this.mPendingDownloadableMessage = message;
1916            return;
1917        }
1918        Transferable transferable = message.getTransferable();
1919        if (transferable != null) {
1920            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1921                createNewConnection(message);
1922                return;
1923            }
1924            if (!transferable.start()) {
1925                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1926                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1927                        .show();
1928            }
1929        } else if (message.treatAsDownloadable()
1930                || message.hasFileOnRemoteHost()
1931                || MessageUtils.unInitiatedButKnownSize(message)) {
1932            createNewConnection(message);
1933        } else {
1934            Log.d(
1935                    Config.LOGTAG,
1936                    message.getConversation().getAccount() + ": unable to start downloadable");
1937        }
1938    }
1939
1940    private void createNewConnection(final Message message) {
1941        if (!activity.xmppConnectionService.hasInternetConnection()) {
1942            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1943                    .show();
1944            return;
1945        }
1946        activity.xmppConnectionService
1947                .getHttpConnectionManager()
1948                .createNewDownloadConnection(message, true);
1949    }
1950
1951    @SuppressLint("InflateParams")
1952    protected void clearHistoryDialog(final Conversation conversation) {
1953        final MaterialAlertDialogBuilder builder =
1954                new MaterialAlertDialogBuilder(requireActivity());
1955        builder.setTitle(R.string.clear_conversation_history);
1956        final View dialogView =
1957                requireActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1958        final CheckBox endConversationCheckBox =
1959                dialogView.findViewById(R.id.end_conversation_checkbox);
1960        builder.setView(dialogView);
1961        builder.setNegativeButton(getString(R.string.cancel), null);
1962        builder.setPositiveButton(
1963                getString(R.string.confirm),
1964                (dialog, which) -> {
1965                    this.activity.xmppConnectionService.clearConversationHistory(conversation);
1966                    if (endConversationCheckBox.isChecked()) {
1967                        this.activity.xmppConnectionService.archiveConversation(conversation);
1968                        this.activity.onConversationArchived(conversation);
1969                    } else {
1970                        activity.onConversationsListItemUpdated();
1971                        refresh();
1972                    }
1973                });
1974        builder.create().show();
1975    }
1976
1977    protected void muteConversationDialog(final Conversation conversation) {
1978        final MaterialAlertDialogBuilder builder =
1979                new MaterialAlertDialogBuilder(requireActivity());
1980        builder.setTitle(R.string.disable_notifications);
1981        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1982        final CharSequence[] labels = new CharSequence[durations.length];
1983        for (int i = 0; i < durations.length; ++i) {
1984            if (durations[i] == -1) {
1985                labels[i] = getString(R.string.until_further_notice);
1986            } else {
1987                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1988            }
1989        }
1990        builder.setItems(
1991                labels,
1992                (dialog, which) -> {
1993                    final long till;
1994                    if (durations[which] == -1) {
1995                        till = Long.MAX_VALUE;
1996                    } else {
1997                        till = System.currentTimeMillis() + (durations[which] * 1000L);
1998                    }
1999                    conversation.setMutedTill(till);
2000                    activity.xmppConnectionService.updateConversation(conversation);
2001                    activity.onConversationsListItemUpdated();
2002                    refresh();
2003                    requireActivity().invalidateOptionsMenu();
2004                });
2005        builder.create().show();
2006    }
2007
2008    private boolean hasPermissions(int requestCode, List<String> permissions) {
2009        final List<String> missingPermissions = new ArrayList<>();
2010        for (String permission : permissions) {
2011            if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU
2012                            || Config.ONLY_INTERNAL_STORAGE)
2013                    && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2014                continue;
2015            }
2016            if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
2017                missingPermissions.add(permission);
2018            }
2019        }
2020        if (missingPermissions.size() == 0) {
2021            return true;
2022        } else {
2023            requestPermissions(missingPermissions.toArray(new String[0]), requestCode);
2024            return false;
2025        }
2026    }
2027
2028    private boolean hasPermissions(int requestCode, String... permissions) {
2029        return hasPermissions(requestCode, ImmutableList.copyOf(permissions));
2030    }
2031
2032    public void unMuteConversation(final Conversation conversation) {
2033        conversation.setMutedTill(0);
2034        this.activity.xmppConnectionService.updateConversation(conversation);
2035        this.activity.onConversationsListItemUpdated();
2036        refresh();
2037        requireActivity().invalidateOptionsMenu();
2038    }
2039
2040    protected void invokeAttachFileIntent(final int attachmentChoice) {
2041        Intent intent = new Intent();
2042        boolean chooser = false;
2043        switch (attachmentChoice) {
2044            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
2045                intent.setAction(Intent.ACTION_GET_CONTENT);
2046                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2047                intent.setType("image/*");
2048                chooser = true;
2049                break;
2050            case ATTACHMENT_CHOICE_RECORD_VIDEO:
2051                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
2052                break;
2053            case ATTACHMENT_CHOICE_TAKE_PHOTO:
2054                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
2055                pendingTakePhotoUri.push(uri);
2056                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
2057                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
2058                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
2059                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
2060                break;
2061            case ATTACHMENT_CHOICE_CHOOSE_FILE:
2062                chooser = true;
2063                intent.setType("*/*");
2064                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2065                intent.addCategory(Intent.CATEGORY_OPENABLE);
2066                intent.setAction(Intent.ACTION_GET_CONTENT);
2067                break;
2068            case ATTACHMENT_CHOICE_RECORD_VOICE:
2069                intent = new Intent(getActivity(), RecordingActivity.class);
2070                break;
2071            case ATTACHMENT_CHOICE_LOCATION:
2072                intent = GeoHelper.getFetchIntent(activity);
2073                break;
2074        }
2075        final Context context = getActivity();
2076        if (context == null) {
2077            return;
2078        }
2079        try {
2080            if (chooser) {
2081                startActivityForResult(
2082                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
2083                        attachmentChoice);
2084            } else {
2085                startActivityForResult(intent, attachmentChoice);
2086            }
2087        } catch (final ActivityNotFoundException e) {
2088            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
2089        }
2090    }
2091
2092    @Override
2093    public void onResume() {
2094        super.onResume();
2095        binding.messagesView.post(this::fireReadEvent);
2096    }
2097
2098    private void fireReadEvent() {
2099        if (activity != null && this.conversation != null) {
2100            String uuid = getLastVisibleMessageUuid();
2101            if (uuid != null) {
2102                activity.onConversationRead(this.conversation, uuid);
2103            }
2104        }
2105    }
2106
2107    private String getLastVisibleMessageUuid() {
2108        if (binding == null) {
2109            return null;
2110        }
2111        synchronized (this.messageList) {
2112            int pos = binding.messagesView.getLastVisiblePosition();
2113            if (pos >= 0) {
2114                Message message = null;
2115                for (int i = pos; i >= 0; --i) {
2116                    try {
2117                        message = (Message) binding.messagesView.getItemAtPosition(i);
2118                    } catch (IndexOutOfBoundsException e) {
2119                        // should not happen if we synchronize properly. however if that fails we
2120                        // just gonna try item -1
2121                        continue;
2122                    }
2123                    if (message.getType() != Message.TYPE_STATUS) {
2124                        break;
2125                    }
2126                }
2127                if (message != null) {
2128                    return message.getUuid();
2129                }
2130            }
2131        }
2132        return null;
2133    }
2134
2135    private void openWith(final Message message) {
2136        if (message.isGeoUri()) {
2137            GeoHelper.view(getActivity(), message);
2138        } else {
2139            final DownloadableFile file =
2140                    activity.xmppConnectionService.getFileBackend().getFile(message);
2141            ViewUtil.view(activity, file);
2142        }
2143    }
2144
2145    private void addReaction(final Message message) {
2146        activity.addReaction(
2147                message,
2148                reactions -> {
2149                    if (activity.xmppConnectionService.sendReactions(message, reactions)) {
2150                        return;
2151                    }
2152                    Toast.makeText(activity, R.string.could_not_add_reaction, Toast.LENGTH_LONG)
2153                            .show();
2154                });
2155    }
2156
2157    private void reportMessage(final Message message) {
2158        BlockContactDialog.show(activity, conversation.getContact(), message.getServerMsgId());
2159    }
2160
2161    private void showErrorMessage(final Message message) {
2162        final MaterialAlertDialogBuilder builder =
2163                new MaterialAlertDialogBuilder(requireActivity());
2164        builder.setTitle(R.string.error_message);
2165        final String errorMessage = message.getErrorMessage();
2166        final String[] errorMessageParts =
2167                errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
2168        final String displayError;
2169        if (errorMessageParts.length == 2) {
2170            displayError = errorMessageParts[1];
2171        } else {
2172            displayError = errorMessage;
2173        }
2174        builder.setMessage(displayError);
2175        builder.setNegativeButton(
2176                R.string.copy_to_clipboard,
2177                (dialog, which) -> {
2178                    activity.copyTextToClipboard(displayError, R.string.error_message);
2179                    Toast.makeText(
2180                                    activity,
2181                                    R.string.error_message_copied_to_clipboard,
2182                                    Toast.LENGTH_SHORT)
2183                            .show();
2184                });
2185        builder.setPositiveButton(R.string.confirm, null);
2186        builder.create().show();
2187    }
2188
2189    private void deleteFile(final Message message) {
2190        final MaterialAlertDialogBuilder builder =
2191                new MaterialAlertDialogBuilder(requireActivity());
2192        builder.setNegativeButton(R.string.cancel, null);
2193        builder.setTitle(R.string.delete_file_dialog);
2194        builder.setMessage(R.string.delete_file_dialog_msg);
2195        builder.setPositiveButton(
2196                R.string.confirm,
2197                (dialog, which) -> {
2198                    if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
2199                        message.setDeleted(true);
2200                        activity.xmppConnectionService.evictPreview(message.getUuid());
2201                        activity.xmppConnectionService.updateMessage(message, false);
2202                        activity.onConversationsListItemUpdated();
2203                        refresh();
2204                    }
2205                });
2206        builder.create().show();
2207    }
2208
2209    private void resendMessage(final Message message, final boolean forceP2P) {
2210        if (message.isFileOrImage()) {
2211            if (!(message.getConversation() instanceof Conversation conversation)) {
2212                return;
2213            }
2214            final DownloadableFile file =
2215                    activity.xmppConnectionService.getFileBackend().getFile(message);
2216            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
2217                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
2218                if (!message.hasFileOnRemoteHost()
2219                        && xmppConnection != null
2220                        && conversation.getMode() == Conversational.MODE_SINGLE
2221                        && (!xmppConnection
2222                                        .getFeatures()
2223                                        .httpUpload(message.getFileParams().getSize())
2224                                || forceP2P)) {
2225                    activity.selectPresence(
2226                            conversation,
2227                            () -> {
2228                                message.setCounterpart(conversation.getNextCounterpart());
2229                                activity.xmppConnectionService.resendFailedMessages(
2230                                        message, forceP2P);
2231                                new Handler()
2232                                        .post(
2233                                                () -> {
2234                                                    int size = messageList.size();
2235                                                    this.binding.messagesView.setSelection(
2236                                                            size - 1);
2237                                                });
2238                            });
2239                    return;
2240                }
2241            } else if (!Compatibility.hasStoragePermission(getActivity())) {
2242                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
2243                return;
2244            } else {
2245                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
2246                message.setDeleted(true);
2247                activity.xmppConnectionService.updateMessage(message, false);
2248                activity.onConversationsListItemUpdated();
2249                refresh();
2250                return;
2251            }
2252        }
2253        activity.xmppConnectionService.resendFailedMessages(message, false);
2254        new Handler()
2255                .post(
2256                        () -> {
2257                            int size = messageList.size();
2258                            this.binding.messagesView.setSelection(size - 1);
2259                        });
2260    }
2261
2262    private void cancelTransmission(Message message) {
2263        Transferable transferable = message.getTransferable();
2264        if (transferable != null) {
2265            transferable.cancel();
2266        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
2267            activity.xmppConnectionService.markMessage(
2268                    message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
2269        }
2270    }
2271
2272    private void retryDecryption(Message message) {
2273        message.setEncryption(Message.ENCRYPTION_PGP);
2274        activity.onConversationsListItemUpdated();
2275        refresh();
2276        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
2277    }
2278
2279    public void privateMessageWith(final Jid counterpart) {
2280        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2281            activity.xmppConnectionService.sendChatState(conversation);
2282        }
2283        this.binding.textinput.setText("");
2284        this.conversation.setNextCounterpart(counterpart);
2285        updateChatMsgHint();
2286        updateSendButton();
2287        updateEditablity();
2288    }
2289
2290    private void correctMessage(final Message message) {
2291        this.conversation.setCorrectingMessage(message);
2292        final Editable editable = binding.textinput.getText();
2293        this.conversation.setDraftMessage(editable.toString());
2294        this.binding.textinput.setText("");
2295        this.binding.textinput.append(message.getBody());
2296    }
2297
2298    private void highlightInConference(String nick) {
2299        final Editable editable = this.binding.textinput.getText();
2300        String oldString = editable.toString().trim();
2301        final int pos = this.binding.textinput.getSelectionStart();
2302        if (oldString.isEmpty() || pos == 0) {
2303            editable.insert(0, nick + ": ");
2304        } else {
2305            final char before = editable.charAt(pos - 1);
2306            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
2307            if (before == '\n') {
2308                editable.insert(pos, nick + ": ");
2309            } else {
2310                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
2311                    if (NickValidityChecker.check(
2312                            conversation,
2313                            Arrays.asList(
2314                                    editable.subSequence(0, pos - 2).toString().split(", ")))) {
2315                        editable.insert(pos - 2, ", " + nick);
2316                        return;
2317                    }
2318                }
2319                editable.insert(
2320                        pos,
2321                        (Character.isWhitespace(before) ? "" : " ")
2322                                + nick
2323                                + (Character.isWhitespace(after) ? "" : " "));
2324                if (Character.isWhitespace(after)) {
2325                    this.binding.textinput.setSelection(
2326                            this.binding.textinput.getSelectionStart() + 1);
2327                }
2328            }
2329        }
2330    }
2331
2332    @Override
2333    public void startActivityForResult(Intent intent, int requestCode) {
2334        final Activity activity = getActivity();
2335        if (activity instanceof ConversationsActivity) {
2336            ((ConversationsActivity) activity).clearPendingViewIntent();
2337        }
2338        super.startActivityForResult(intent, requestCode);
2339    }
2340
2341    @Override
2342    public void onSaveInstanceState(@NonNull Bundle outState) {
2343        super.onSaveInstanceState(outState);
2344        if (conversation != null) {
2345            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
2346            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
2347            final Uri uri = pendingTakePhotoUri.peek();
2348            if (uri != null) {
2349                outState.putString(STATE_PHOTO_URI, uri.toString());
2350            }
2351            final ScrollState scrollState = getScrollPosition();
2352            if (scrollState != null) {
2353                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
2354            }
2355            final ArrayList<Attachment> attachments =
2356                    mediaPreviewAdapter == null
2357                            ? new ArrayList<>()
2358                            : mediaPreviewAdapter.getAttachments();
2359            if (attachments.size() > 0) {
2360                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
2361            }
2362        }
2363    }
2364
2365    @Override
2366    public void onActivityCreated(Bundle savedInstanceState) {
2367        super.onActivityCreated(savedInstanceState);
2368        if (savedInstanceState == null) {
2369            return;
2370        }
2371        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
2372        ArrayList<Attachment> attachments =
2373                savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
2374        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
2375        if (uuid != null) {
2376            QuickLoader.set(uuid);
2377            this.pendingConversationsUuid.push(uuid);
2378            if (attachments != null && attachments.size() > 0) {
2379                this.pendingMediaPreviews.push(attachments);
2380            }
2381            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
2382            if (takePhotoUri != null) {
2383                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2384            }
2385            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2386        }
2387    }
2388
2389    @Override
2390    public void onStart() {
2391        super.onStart();
2392        if (this.reInitRequiredOnStart && this.conversation != null) {
2393            final Bundle extras = pendingExtras.pop();
2394            reInit(this.conversation, extras != null);
2395            if (extras != null) {
2396                processExtras(extras);
2397            }
2398        } else if (conversation == null
2399                && activity != null
2400                && activity.xmppConnectionService != null) {
2401            final String uuid = pendingConversationsUuid.pop();
2402            Log.d(
2403                    Config.LOGTAG,
2404                    "ConversationFragment.onStart() - activity was bound but no conversation"
2405                            + " loaded. uuid="
2406                            + uuid);
2407            if (uuid != null) {
2408                findAndReInitByUuidOrArchive(uuid);
2409            }
2410        }
2411    }
2412
2413    @Override
2414    public void onStop() {
2415        super.onStop();
2416        final Activity activity = getActivity();
2417        messageListAdapter.unregisterListenerInAudioPlayer();
2418        if (activity == null || !activity.isChangingConfigurations()) {
2419            hideSoftKeyboard(activity);
2420            messageListAdapter.stopAudioPlayer();
2421        }
2422        if (this.conversation != null) {
2423            final String msg = this.binding.textinput.getText().toString();
2424            storeNextMessage(msg);
2425            updateChatState(this.conversation, msg);
2426            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2427        }
2428        this.reInitRequiredOnStart = true;
2429    }
2430
2431    private void updateChatState(final Conversation conversation, final String msg) {
2432        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2433        Account.State status = conversation.getAccount().getStatus();
2434        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2435            activity.xmppConnectionService.sendChatState(conversation);
2436        }
2437    }
2438
2439    private void saveMessageDraftStopAudioPlayer() {
2440        final Conversation previousConversation = this.conversation;
2441        if (this.activity == null || this.binding == null || previousConversation == null) {
2442            return;
2443        }
2444        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2445        final String msg = this.binding.textinput.getText().toString();
2446        storeNextMessage(msg);
2447        updateChatState(this.conversation, msg);
2448        messageListAdapter.stopAudioPlayer();
2449        mediaPreviewAdapter.clearPreviews();
2450        toggleInputMethod();
2451    }
2452
2453    public void reInit(final Conversation conversation, final Bundle extras) {
2454        QuickLoader.set(conversation.getUuid());
2455        final boolean changedConversation = this.conversation != conversation;
2456        if (changedConversation) {
2457            this.saveMessageDraftStopAudioPlayer();
2458        }
2459        this.clearPending();
2460        if (this.reInit(conversation, extras != null)) {
2461            if (extras != null) {
2462                processExtras(extras);
2463            }
2464            this.reInitRequiredOnStart = false;
2465        } else {
2466            this.reInitRequiredOnStart = true;
2467            pendingExtras.push(extras);
2468        }
2469        resetUnreadMessagesCount();
2470    }
2471
2472    private void reInit(Conversation conversation) {
2473        reInit(conversation, false);
2474    }
2475
2476    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2477        if (conversation == null) {
2478            return false;
2479        }
2480        this.conversation = conversation;
2481        // once we set the conversation all is good and it will automatically do the right thing in
2482        // onStart()
2483        if (this.activity == null || this.binding == null) {
2484            return false;
2485        }
2486
2487        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2488            activity.onConversationArchived(this.conversation);
2489            return false;
2490        }
2491
2492        stopScrolling();
2493        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
2494
2495        if (this.conversation.isRead() && hasExtras) {
2496            Log.d(Config.LOGTAG, "trimming conversation");
2497            this.conversation.trim();
2498        }
2499
2500        setupIme();
2501
2502        final boolean scrolledToBottomAndNoPending =
2503                this.scrolledToBottom() && pendingScrollState.peek() == null;
2504
2505        this.binding.textSendButton.setContentDescription(
2506                activity.getString(R.string.send_message_to_x, conversation.getName()));
2507        this.binding.textinput.setKeyboardListener(null);
2508        final boolean participating =
2509                conversation.getMode() == Conversational.MODE_SINGLE
2510                        || conversation.getMucOptions().participating();
2511        if (participating) {
2512            this.binding.textinput.setText(this.conversation.getNextMessage());
2513            this.binding.textinput.setSelection(this.binding.textinput.length());
2514        } else {
2515            this.binding.textinput.setText(MessageUtils.EMPTY_STRING);
2516        }
2517        this.binding.textinput.setKeyboardListener(this);
2518        messageListAdapter.updatePreferences();
2519        refresh(false);
2520        activity.invalidateOptionsMenu();
2521        this.conversation.messagesLoaded.set(true);
2522        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
2523
2524        if (hasExtras || scrolledToBottomAndNoPending) {
2525            resetUnreadMessagesCount();
2526            synchronized (this.messageList) {
2527                Log.d(Config.LOGTAG, "jump to first unread message");
2528                final Message first = conversation.getFirstUnreadMessage();
2529                final int bottom = Math.max(0, this.messageList.size() - 1);
2530                final int pos;
2531                final boolean jumpToBottom;
2532                if (first == null) {
2533                    pos = bottom;
2534                    jumpToBottom = true;
2535                } else {
2536                    int i = getIndexOf(first.getUuid(), this.messageList);
2537                    pos = i < 0 ? bottom : i;
2538                    jumpToBottom = false;
2539                }
2540                setSelection(pos, jumpToBottom);
2541            }
2542        }
2543
2544        this.binding.messagesView.post(this::fireReadEvent);
2545        // TODO if we only do this when this fragment is running on main it won't *bing* in tablet
2546        // layout which might be unnecessary since we can *see* it
2547        activity.xmppConnectionService
2548                .getNotificationService()
2549                .setOpenConversation(this.conversation);
2550        return true;
2551    }
2552
2553    private void resetUnreadMessagesCount() {
2554        lastMessageUuid = null;
2555        hideUnreadMessagesCount();
2556    }
2557
2558    private void hideUnreadMessagesCount() {
2559        if (this.binding == null) {
2560            return;
2561        }
2562        this.binding.scrollToBottomButton.setEnabled(false);
2563        this.binding.scrollToBottomButton.hide();
2564        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2565    }
2566
2567    private void setSelection(int pos, boolean jumpToBottom) {
2568        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2569        this.binding.messagesView.post(
2570                () -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2571        this.binding.messagesView.post(this::fireReadEvent);
2572    }
2573
2574    private boolean scrolledToBottom() {
2575        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2576    }
2577
2578    private void processExtras(final Bundle extras) {
2579        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2580        final String text = extras.getString(Intent.EXTRA_TEXT);
2581        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2582        final String postInitAction =
2583                extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2584        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2585        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2586        final boolean doNotAppend =
2587                extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2588        final String type = extras.getString(ConversationsActivity.EXTRA_TYPE);
2589        final List<Uri> uris = extractUris(extras);
2590        if (uris != null && uris.size() > 0) {
2591            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2592                mediaPreviewAdapter.addMediaPreviews(
2593                        Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2594            } else {
2595                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2596                mediaPreviewAdapter.addMediaPreviews(
2597                        Attachment.of(getActivity(), cleanedUris, type));
2598            }
2599            toggleInputMethod();
2600            return;
2601        }
2602        if (nick != null) {
2603            if (pm) {
2604                Jid jid = conversation.getJid();
2605                try {
2606                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2607                    privateMessageWith(next);
2608                } catch (final IllegalArgumentException ignored) {
2609                    // do nothing
2610                }
2611            } else {
2612                final MucOptions mucOptions = conversation.getMucOptions();
2613                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2614                    highlightInConference(nick);
2615                }
2616            }
2617        } else {
2618            if (text != null && Patterns.URI_GEO.matcher(text).matches()) {
2619                mediaPreviewAdapter.addMediaPreviews(
2620                        Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2621                toggleInputMethod();
2622                return;
2623            } else if (text != null && asQuote) {
2624                quoteText(text);
2625            } else {
2626                appendText(text, doNotAppend);
2627            }
2628        }
2629        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2630            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2631            return;
2632        }
2633        final Message message =
2634                downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2635        if (message != null) {
2636            startDownloadable(message);
2637        }
2638    }
2639
2640    private List<Uri> extractUris(final Bundle extras) {
2641        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2642        if (uris != null) {
2643            return uris;
2644        }
2645        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2646        if (uri != null) {
2647            return Collections.singletonList(uri);
2648        } else {
2649            return null;
2650        }
2651    }
2652
2653    private List<Uri> cleanUris(final List<Uri> uris) {
2654        final Iterator<Uri> iterator = uris.iterator();
2655        while (iterator.hasNext()) {
2656            final Uri uri = iterator.next();
2657            if (FileBackend.dangerousFile(uri)) {
2658                iterator.remove();
2659                Toast.makeText(
2660                                requireActivity(),
2661                                R.string.security_violation_not_attaching_file,
2662                                Toast.LENGTH_SHORT)
2663                        .show();
2664            }
2665        }
2666        return uris;
2667    }
2668
2669    private boolean showBlockSubmenu(View view) {
2670        final Jid jid = conversation.getJid();
2671        final boolean showReject =
2672                !conversation.isWithStranger()
2673                        && conversation
2674                                .getContact()
2675                                .getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2676        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2677        popupMenu.inflate(R.menu.block);
2678        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2679        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2680        popupMenu.setOnMenuItemClickListener(
2681                menuItem -> {
2682                    Blockable blockable;
2683                    switch (menuItem.getItemId()) {
2684                        case R.id.reject:
2685                            activity.xmppConnectionService.stopPresenceUpdatesTo(
2686                                    conversation.getContact());
2687                            updateSnackBar(conversation);
2688                            return true;
2689                        case R.id.block_domain:
2690                            blockable =
2691                                    conversation
2692                                            .getAccount()
2693                                            .getRoster()
2694                                            .getContact(jid.getDomain());
2695                            break;
2696                        default:
2697                            blockable = conversation;
2698                    }
2699                    BlockContactDialog.show(activity, blockable);
2700                    return true;
2701                });
2702        popupMenu.show();
2703        return true;
2704    }
2705
2706    private void updateSnackBar(final Conversation conversation) {
2707        final Account account = conversation.getAccount();
2708        final XmppConnection connection = account.getXmppConnection();
2709        final int mode = conversation.getMode();
2710        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2711        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2712            return;
2713        }
2714        if (account.getStatus() == Account.State.DISABLED) {
2715            showSnackbar(
2716                    R.string.this_account_is_disabled,
2717                    R.string.enable,
2718                    this.mEnableAccountListener);
2719        } else if (account.getStatus() == Account.State.LOGGED_OUT) {
2720            showSnackbar(
2721                    R.string.this_account_is_logged_out,
2722                    R.string.log_in,
2723                    this.mEnableAccountListener);
2724        } else if (conversation.isBlocked()) {
2725            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2726        } else if (contact != null
2727                && !contact.showInRoster()
2728                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2729            showSnackbar(
2730                    R.string.contact_added_you,
2731                    R.string.add_back,
2732                    this.mAddBackClickListener,
2733                    this.mLongPressBlockListener);
2734        } else if (contact != null
2735                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2736            showSnackbar(
2737                    R.string.contact_asks_for_presence_subscription,
2738                    R.string.allow,
2739                    this.mAllowPresenceSubscription,
2740                    this.mLongPressBlockListener);
2741        } else if (mode == Conversation.MODE_MULTI
2742                && !conversation.getMucOptions().online()
2743                && account.getStatus() == Account.State.ONLINE) {
2744            switch (conversation.getMucOptions().getError()) {
2745                case NICK_IN_USE:
2746                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2747                    break;
2748                case NO_RESPONSE:
2749                    showSnackbar(R.string.joining_conference, 0, null);
2750                    break;
2751                case SERVER_NOT_FOUND:
2752                    if (conversation.receivedMessagesCount() > 0) {
2753                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2754                    } else {
2755                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2756                    }
2757                    break;
2758                case REMOTE_SERVER_TIMEOUT:
2759                    if (conversation.receivedMessagesCount() > 0) {
2760                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2761                    } else {
2762                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2763                    }
2764                    break;
2765                case PASSWORD_REQUIRED:
2766                    showSnackbar(
2767                            R.string.conference_requires_password,
2768                            R.string.enter_password,
2769                            enterPassword);
2770                    break;
2771                case BANNED:
2772                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2773                    break;
2774                case MEMBERS_ONLY:
2775                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2776                    break;
2777                case RESOURCE_CONSTRAINT:
2778                    showSnackbar(
2779                            R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2780                    break;
2781                case KICKED:
2782                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2783                    break;
2784                case TECHNICAL_PROBLEMS:
2785                    showSnackbar(
2786                            R.string.conference_technical_problems, R.string.try_again, joinMuc);
2787                    break;
2788                case UNKNOWN:
2789                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2790                    break;
2791                case INVALID_NICK:
2792                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2793                case SHUTDOWN:
2794                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2795                    break;
2796                case DESTROYED:
2797                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2798                    break;
2799                case NON_ANONYMOUS:
2800                    showSnackbar(
2801                            R.string.group_chat_will_make_your_jabber_id_public,
2802                            R.string.join,
2803                            acceptJoin);
2804                    break;
2805                default:
2806                    hideSnackbar();
2807                    break;
2808            }
2809        } else if (account.hasPendingPgpIntent(conversation)) {
2810            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2811        } else if (connection != null
2812                && connection.getFeatures().blocking()
2813                && conversation.countMessages() != 0
2814                && !conversation.isBlocked()
2815                && conversation.isWithStranger()) {
2816            showSnackbar(
2817                    R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2818        } else {
2819            hideSnackbar();
2820        }
2821    }
2822
2823    @Override
2824    public void refresh() {
2825        if (this.binding == null) {
2826            Log.d(
2827                    Config.LOGTAG,
2828                    "ConversationFragment.refresh() skipped updated because view binding was null");
2829            return;
2830        }
2831        if (this.conversation != null
2832                && this.activity != null
2833                && this.activity.xmppConnectionService != null) {
2834            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2835                activity.onConversationArchived(this.conversation);
2836                return;
2837            }
2838        }
2839        this.refresh(true);
2840    }
2841
2842    private void refresh(boolean notifyConversationRead) {
2843        synchronized (this.messageList) {
2844            if (this.conversation != null) {
2845                conversation.populateWithMessages(this.messageList);
2846                updateSnackBar(conversation);
2847                updateStatusMessages();
2848                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2849                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2850                    binding.unreadCountCustomView.setUnreadCount(
2851                            conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2852                }
2853                this.messageListAdapter.notifyDataSetChanged();
2854                updateChatMsgHint();
2855                if (notifyConversationRead && activity != null) {
2856                    binding.messagesView.post(this::fireReadEvent);
2857                }
2858                updateSendButton();
2859                updateEditablity();
2860            }
2861        }
2862    }
2863
2864    protected void messageSent() {
2865        mSendingPgpMessage.set(false);
2866        this.binding.textinput.setText("");
2867        if (conversation.setCorrectingMessage(null)) {
2868            this.binding.textinput.append(conversation.getDraftMessage());
2869            conversation.setDraftMessage(null);
2870        }
2871        storeNextMessage();
2872        updateChatMsgHint();
2873        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2874        final boolean prefScrollToBottom =
2875                p.getBoolean(
2876                        "scroll_to_bottom",
2877                        activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2878        if (prefScrollToBottom || scrolledToBottom()) {
2879            new Handler()
2880                    .post(
2881                            () -> {
2882                                int size = messageList.size();
2883                                this.binding.messagesView.setSelection(size - 1);
2884                            });
2885        }
2886    }
2887
2888    private boolean storeNextMessage() {
2889        return storeNextMessage(this.binding.textinput.getText().toString());
2890    }
2891
2892    private boolean storeNextMessage(String msg) {
2893        final boolean participating =
2894                conversation.getMode() == Conversational.MODE_SINGLE
2895                        || conversation.getMucOptions().participating();
2896        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED
2897                && participating
2898                && this.conversation.setNextMessage(msg)) {
2899            this.activity.xmppConnectionService.updateConversation(this.conversation);
2900            return true;
2901        }
2902        return false;
2903    }
2904
2905    public void doneSendingPgpMessage() {
2906        mSendingPgpMessage.set(false);
2907    }
2908
2909    public long getMaxHttpUploadSize(Conversation conversation) {
2910        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2911        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2912    }
2913
2914    private void updateEditablity() {
2915        boolean canWrite =
2916                this.conversation.getMode() == Conversation.MODE_SINGLE
2917                        || this.conversation.getMucOptions().participating()
2918                        || this.conversation.getNextCounterpart() != null;
2919        this.binding.textinput.setFocusable(canWrite);
2920        this.binding.textinput.setFocusableInTouchMode(canWrite);
2921        this.binding.textSendButton.setEnabled(canWrite);
2922        this.binding.textinput.setCursorVisible(canWrite);
2923        this.binding.textinput.setEnabled(canWrite);
2924    }
2925
2926    public void updateSendButton() {
2927        boolean hasAttachments =
2928                mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2929        final Conversation c = this.conversation;
2930        final Presence.Status status;
2931        final String text =
2932                this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2933        final SendButtonAction action;
2934        if (hasAttachments) {
2935            action = SendButtonAction.TEXT;
2936        } else {
2937            action = SendButtonTool.getAction(getActivity(), c, text);
2938        }
2939        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2940            if (activity != null
2941                    && activity.xmppConnectionService != null
2942                    && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2943                status = Presence.Status.OFFLINE;
2944            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2945                status = c.getContact().getShownStatus();
2946            } else {
2947                status =
2948                        c.getMucOptions().online()
2949                                ? Presence.Status.ONLINE
2950                                : Presence.Status.OFFLINE;
2951            }
2952        } else {
2953            status = Presence.Status.OFFLINE;
2954        }
2955        this.binding.textSendButton.setTag(action);
2956        this.binding.textSendButton.setIconResource(
2957                SendButtonTool.getSendButtonImageResource(action));
2958        this.binding.textSendButton.setIconTint(
2959                ColorStateList.valueOf(
2960                        SendButtonTool.getSendButtonColor(this.binding.textSendButton, status)));
2961        // TODO send button color
2962        final Activity activity = getActivity();
2963        if (activity != null) {}
2964    }
2965
2966    protected void updateStatusMessages() {
2967        DateSeparator.addAll(this.messageList);
2968        if (showLoadMoreMessages(conversation)) {
2969            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2970        }
2971        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2972            ChatState state = conversation.getIncomingChatState();
2973            if (state == ChatState.COMPOSING) {
2974                this.messageList.add(
2975                        Message.createStatusMessage(
2976                                conversation,
2977                                getString(R.string.contact_is_typing, conversation.getName())));
2978            } else if (state == ChatState.PAUSED) {
2979                this.messageList.add(
2980                        Message.createStatusMessage(
2981                                conversation,
2982                                getString(
2983                                        R.string.contact_has_stopped_typing,
2984                                        conversation.getName())));
2985            } else {
2986                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2987                    final Message message = this.messageList.get(i);
2988                    if (message.getType() != Message.TYPE_STATUS) {
2989                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2990                            return;
2991                        } else {
2992                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2993                                this.messageList.add(
2994                                        i + 1,
2995                                        Message.createStatusMessage(
2996                                                conversation,
2997                                                getString(
2998                                                        R.string.contact_has_read_up_to_this_point,
2999                                                        conversation.getName())));
3000                                return;
3001                            }
3002                        }
3003                    }
3004                }
3005            }
3006        } else {
3007            final MucOptions mucOptions = conversation.getMucOptions();
3008            final List<MucOptions.User> allUsers = mucOptions.getUsers();
3009            final Set<ReadByMarker> addedMarkers = new HashSet<>();
3010            ChatState state = ChatState.COMPOSING;
3011            List<MucOptions.User> users =
3012                    conversation.getMucOptions().getUsersWithChatState(state, 5);
3013            if (users.size() == 0) {
3014                state = ChatState.PAUSED;
3015                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
3016            }
3017            if (mucOptions.isPrivateAndNonAnonymous()) {
3018                for (int i = this.messageList.size() - 1; i >= 0; --i) {
3019                    final Set<ReadByMarker> markersForMessage =
3020                            messageList.get(i).getReadByMarkers();
3021                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
3022                    for (ReadByMarker marker : markersForMessage) {
3023                        if (!ReadByMarker.contains(marker, addedMarkers)) {
3024                            addedMarkers.add(
3025                                    marker); // may be put outside this condition. set should do
3026                            // dedup anyway
3027                            MucOptions.User user = mucOptions.findUser(marker);
3028                            if (user != null && !users.contains(user)) {
3029                                shownMarkers.add(user);
3030                            }
3031                        }
3032                    }
3033                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
3034                    final Message statusMessage;
3035                    final int size = shownMarkers.size();
3036                    if (size > 1) {
3037                        final String body;
3038                        if (size <= 4) {
3039                            body =
3040                                    getString(
3041                                            R.string.contacts_have_read_up_to_this_point,
3042                                            UIHelper.concatNames(shownMarkers));
3043                        } else if (ReadByMarker.allUsersRepresented(
3044                                allUsers, markersForMessage, markerForSender)) {
3045                            body = getString(R.string.everyone_has_read_up_to_this_point);
3046                        } else {
3047                            body =
3048                                    getString(
3049                                            R.string.contacts_and_n_more_have_read_up_to_this_point,
3050                                            UIHelper.concatNames(shownMarkers, 3),
3051                                            size - 3);
3052                        }
3053                        statusMessage = Message.createStatusMessage(conversation, body);
3054                        statusMessage.setCounterparts(shownMarkers);
3055                    } else if (size == 1) {
3056                        statusMessage =
3057                                Message.createStatusMessage(
3058                                        conversation,
3059                                        getString(
3060                                                R.string.contact_has_read_up_to_this_point,
3061                                                UIHelper.getDisplayName(shownMarkers.get(0))));
3062                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
3063                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
3064                    } else {
3065                        statusMessage = null;
3066                    }
3067                    if (statusMessage != null) {
3068                        this.messageList.add(i + 1, statusMessage);
3069                    }
3070                    addedMarkers.add(markerForSender);
3071                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
3072                        break;
3073                    }
3074                }
3075            }
3076            if (users.size() > 0) {
3077                Message statusMessage;
3078                if (users.size() == 1) {
3079                    MucOptions.User user = users.get(0);
3080                    int id =
3081                            state == ChatState.COMPOSING
3082                                    ? R.string.contact_is_typing
3083                                    : R.string.contact_has_stopped_typing;
3084                    statusMessage =
3085                            Message.createStatusMessage(
3086                                    conversation, getString(id, UIHelper.getDisplayName(user)));
3087                    statusMessage.setTrueCounterpart(user.getRealJid());
3088                    statusMessage.setCounterpart(user.getFullJid());
3089                } else {
3090                    int id =
3091                            state == ChatState.COMPOSING
3092                                    ? R.string.contacts_are_typing
3093                                    : R.string.contacts_have_stopped_typing;
3094                    statusMessage =
3095                            Message.createStatusMessage(
3096                                    conversation, getString(id, UIHelper.concatNames(users)));
3097                    statusMessage.setCounterparts(users);
3098                }
3099                this.messageList.add(statusMessage);
3100            }
3101        }
3102    }
3103
3104    private void stopScrolling() {
3105        long now = SystemClock.uptimeMillis();
3106        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
3107        binding.messagesView.dispatchTouchEvent(cancel);
3108    }
3109
3110    private boolean showLoadMoreMessages(final Conversation c) {
3111        if (activity == null || activity.xmppConnectionService == null) {
3112            return false;
3113        }
3114        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
3115        final MessageArchiveService service =
3116                activity.xmppConnectionService.getMessageArchiveService();
3117        return mam
3118                && (c.getLastClearHistory().getTimestamp() != 0
3119                        || (c.countMessages() == 0
3120                                && c.messagesLoaded.get()
3121                                && c.hasMessagesLeftOnServer()
3122                                && !service.queryInProgress(c)));
3123    }
3124
3125    private boolean hasMamSupport(final Conversation c) {
3126        if (c.getMode() == Conversation.MODE_SINGLE) {
3127            final XmppConnection connection = c.getAccount().getXmppConnection();
3128            return connection != null && connection.getFeatures().mam();
3129        } else {
3130            return c.getMucOptions().mamSupport();
3131        }
3132    }
3133
3134    protected void showSnackbar(
3135            final int message, final int action, final OnClickListener clickListener) {
3136        showSnackbar(message, action, clickListener, null);
3137    }
3138
3139    protected void showSnackbar(
3140            final int message,
3141            final int action,
3142            final OnClickListener clickListener,
3143            final View.OnLongClickListener longClickListener) {
3144        this.binding.snackbar.setVisibility(View.VISIBLE);
3145        this.binding.snackbar.setOnClickListener(null);
3146        this.binding.snackbarMessage.setText(message);
3147        this.binding.snackbarMessage.setOnClickListener(null);
3148        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
3149        if (action != 0) {
3150            this.binding.snackbarAction.setText(action);
3151        }
3152        this.binding.snackbarAction.setOnClickListener(clickListener);
3153        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
3154    }
3155
3156    protected void hideSnackbar() {
3157        this.binding.snackbar.setVisibility(View.GONE);
3158    }
3159
3160    protected void sendMessage(Message message) {
3161        activity.xmppConnectionService.sendMessage(message);
3162        messageSent();
3163    }
3164
3165    protected void sendPgpMessage(final Message message) {
3166        final XmppConnectionService xmppService = activity.xmppConnectionService;
3167        final Contact contact = message.getConversation().getContact();
3168        if (!activity.hasPgp()) {
3169            activity.showInstallPgpDialog();
3170            return;
3171        }
3172        if (conversation.getAccount().getPgpSignature() == null) {
3173            activity.announcePgp(
3174                    conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
3175            return;
3176        }
3177        if (!mSendingPgpMessage.compareAndSet(false, true)) {
3178            Log.d(Config.LOGTAG, "sending pgp message already in progress");
3179        }
3180        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3181            if (contact.getPgpKeyId() != 0) {
3182                xmppService
3183                        .getPgpEngine()
3184                        .hasKey(
3185                                contact,
3186                                new UiCallback<Contact>() {
3187
3188                                    @Override
3189                                    public void userInputRequired(
3190                                            PendingIntent pi, Contact contact) {
3191                                        startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
3192                                    }
3193
3194                                    @Override
3195                                    public void success(Contact contact) {
3196                                        encryptTextMessage(message);
3197                                    }
3198
3199                                    @Override
3200                                    public void error(int error, Contact contact) {
3201                                        activity.runOnUiThread(
3202                                                () ->
3203                                                        Toast.makeText(
3204                                                                        activity,
3205                                                                        R.string
3206                                                                                .unable_to_connect_to_keychain,
3207                                                                        Toast.LENGTH_SHORT)
3208                                                                .show());
3209                                        mSendingPgpMessage.set(false);
3210                                    }
3211                                });
3212
3213            } else {
3214                showNoPGPKeyDialog(
3215                        false,
3216                        (dialog, which) -> {
3217                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3218                            xmppService.updateConversation(conversation);
3219                            message.setEncryption(Message.ENCRYPTION_NONE);
3220                            xmppService.sendMessage(message);
3221                            messageSent();
3222                        });
3223            }
3224        } else {
3225            if (conversation.getMucOptions().pgpKeysInUse()) {
3226                if (!conversation.getMucOptions().everybodyHasKeys()) {
3227                    Toast warning =
3228                            Toast.makeText(
3229                                    getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
3230                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
3231                    warning.show();
3232                }
3233                encryptTextMessage(message);
3234            } else {
3235                showNoPGPKeyDialog(
3236                        true,
3237                        (dialog, which) -> {
3238                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3239                            message.setEncryption(Message.ENCRYPTION_NONE);
3240                            xmppService.updateConversation(conversation);
3241                            xmppService.sendMessage(message);
3242                            messageSent();
3243                        });
3244            }
3245        }
3246    }
3247
3248    public void encryptTextMessage(Message message) {
3249        activity.xmppConnectionService
3250                .getPgpEngine()
3251                .encrypt(
3252                        message,
3253                        new UiCallback<Message>() {
3254
3255                            @Override
3256                            public void userInputRequired(PendingIntent pi, Message message) {
3257                                startPendingIntent(pi, REQUEST_SEND_MESSAGE);
3258                            }
3259
3260                            @Override
3261                            public void success(Message message) {
3262                                // TODO the following two call can be made before the callback
3263                                getActivity().runOnUiThread(() -> messageSent());
3264                            }
3265
3266                            @Override
3267                            public void error(final int error, Message message) {
3268                                getActivity()
3269                                        .runOnUiThread(
3270                                                () -> {
3271                                                    doneSendingPgpMessage();
3272                                                    Toast.makeText(
3273                                                                    getActivity(),
3274                                                                    error == 0
3275                                                                            ? R.string
3276                                                                                    .unable_to_connect_to_keychain
3277                                                                            : error,
3278                                                                    Toast.LENGTH_SHORT)
3279                                                            .show();
3280                                                });
3281                            }
3282                        });
3283    }
3284
3285    public void showNoPGPKeyDialog(
3286            final boolean plural, final DialogInterface.OnClickListener listener) {
3287        final MaterialAlertDialogBuilder builder =
3288                new MaterialAlertDialogBuilder(requireActivity());
3289        if (plural) {
3290            builder.setTitle(getString(R.string.no_pgp_keys));
3291            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
3292        } else {
3293            builder.setTitle(getString(R.string.no_pgp_key));
3294            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
3295        }
3296        builder.setNegativeButton(getString(R.string.cancel), null);
3297        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
3298        builder.create().show();
3299    }
3300
3301    public void appendText(String text, final boolean doNotAppend) {
3302        if (text == null) {
3303            return;
3304        }
3305        final Editable editable = this.binding.textinput.getText();
3306        String previous = editable == null ? "" : editable.toString();
3307        if (doNotAppend && !TextUtils.isEmpty(previous)) {
3308            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG)
3309                    .show();
3310            return;
3311        }
3312        if (UIHelper.isLastLineQuote(previous)) {
3313            text = '\n' + text;
3314        } else if (previous.length() != 0
3315                && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
3316            text = " " + text;
3317        }
3318        this.binding.textinput.append(text);
3319    }
3320
3321    @Override
3322    public boolean onEnterPressed(final boolean isCtrlPressed) {
3323        if (isCtrlPressed || enterIsSend()) {
3324            sendMessage();
3325            return true;
3326        }
3327        return false;
3328    }
3329
3330    private boolean enterIsSend() {
3331        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
3332        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
3333    }
3334
3335    public boolean onArrowUpCtrlPressed() {
3336        final Message lastEditableMessage =
3337                conversation == null ? null : conversation.getLastEditableMessage();
3338        if (lastEditableMessage != null) {
3339            correctMessage(lastEditableMessage);
3340            return true;
3341        } else {
3342            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG)
3343                    .show();
3344            return false;
3345        }
3346    }
3347
3348    @Override
3349    public void onTypingStarted() {
3350        final XmppConnectionService service =
3351                activity == null ? null : activity.xmppConnectionService;
3352        if (service == null) {
3353            return;
3354        }
3355        final Account.State status = conversation.getAccount().getStatus();
3356        if (status == Account.State.ONLINE
3357                && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
3358            service.sendChatState(conversation);
3359        }
3360        runOnUiThread(this::updateSendButton);
3361    }
3362
3363    @Override
3364    public void onTypingStopped() {
3365        final XmppConnectionService service =
3366                activity == null ? null : activity.xmppConnectionService;
3367        if (service == null) {
3368            return;
3369        }
3370        final Account.State status = conversation.getAccount().getStatus();
3371        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
3372            service.sendChatState(conversation);
3373        }
3374    }
3375
3376    @Override
3377    public void onTextDeleted() {
3378        final XmppConnectionService service =
3379                activity == null ? null : activity.xmppConnectionService;
3380        if (service == null) {
3381            return;
3382        }
3383        final Account.State status = conversation.getAccount().getStatus();
3384        if (status == Account.State.ONLINE
3385                && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
3386            service.sendChatState(conversation);
3387        }
3388        if (storeNextMessage()) {
3389            runOnUiThread(
3390                    () -> {
3391                        if (activity == null) {
3392                            return;
3393                        }
3394                        activity.onConversationsListItemUpdated();
3395                    });
3396        }
3397        runOnUiThread(this::updateSendButton);
3398    }
3399
3400    @Override
3401    public void onTextChanged() {
3402        if (conversation != null && conversation.getCorrectingMessage() != null) {
3403            runOnUiThread(this::updateSendButton);
3404        }
3405    }
3406
3407    @Override
3408    public boolean onTabPressed(boolean repeated) {
3409        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
3410            return false;
3411        }
3412        if (repeated) {
3413            completionIndex++;
3414        } else {
3415            lastCompletionLength = 0;
3416            completionIndex = 0;
3417            final String content = this.binding.textinput.getText().toString();
3418            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
3419            int start =
3420                    lastCompletionCursor > 0
3421                            ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1
3422                            : 0;
3423            firstWord = start == 0;
3424            incomplete = content.substring(start, lastCompletionCursor);
3425        }
3426        List<String> completions = new ArrayList<>();
3427        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
3428            String name = user.getName();
3429            if (name != null && name.startsWith(incomplete)) {
3430                completions.add(name + (firstWord ? ": " : " "));
3431            }
3432        }
3433        Collections.sort(completions);
3434        if (completions.size() > completionIndex) {
3435            String completion = completions.get(completionIndex).substring(incomplete.length());
3436            this.binding
3437                    .textinput
3438                    .getEditableText()
3439                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3440            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
3441            lastCompletionLength = completion.length();
3442        } else {
3443            completionIndex = -1;
3444            this.binding
3445                    .textinput
3446                    .getEditableText()
3447                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3448            lastCompletionLength = 0;
3449        }
3450        return true;
3451    }
3452
3453    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
3454        try {
3455            getActivity()
3456                    .startIntentSenderForResult(
3457                            pendingIntent.getIntentSender(),
3458                            requestCode,
3459                            null,
3460                            0,
3461                            0,
3462                            0,
3463                            Compatibility.pgpStartIntentSenderOptions());
3464        } catch (final SendIntentException ignored) {
3465        }
3466    }
3467
3468    @Override
3469    public void onBackendConnected() {
3470        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
3471        String uuid = pendingConversationsUuid.pop();
3472        if (uuid != null) {
3473            if (!findAndReInitByUuidOrArchive(uuid)) {
3474                return;
3475            }
3476        } else {
3477            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
3478                clearPending();
3479                activity.onConversationArchived(conversation);
3480                return;
3481            }
3482        }
3483        ActivityResult activityResult = postponedActivityResult.pop();
3484        if (activityResult != null) {
3485            handleActivityResult(activityResult);
3486        }
3487        clearPending();
3488    }
3489
3490    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
3491        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
3492        if (conversation == null) {
3493            clearPending();
3494            activity.onConversationArchived(null);
3495            return false;
3496        }
3497        reInit(conversation);
3498        ScrollState scrollState = pendingScrollState.pop();
3499        String lastMessageUuid = pendingLastMessageUuid.pop();
3500        List<Attachment> attachments = pendingMediaPreviews.pop();
3501        if (scrollState != null) {
3502            setScrollPosition(scrollState, lastMessageUuid);
3503        }
3504        if (attachments != null && attachments.size() > 0) {
3505            Log.d(Config.LOGTAG, "had attachments on restore");
3506            mediaPreviewAdapter.addMediaPreviews(attachments);
3507            toggleInputMethod();
3508        }
3509        return true;
3510    }
3511
3512    private void clearPending() {
3513        if (postponedActivityResult.clear()) {
3514            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
3515            if (pendingTakePhotoUri.clear()) {
3516                Log.e(Config.LOGTAG, "cleared pending photo uri");
3517            }
3518        }
3519        if (pendingScrollState.clear()) {
3520            Log.e(Config.LOGTAG, "cleared scroll state");
3521        }
3522        if (pendingConversationsUuid.clear()) {
3523            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
3524        }
3525        if (pendingMediaPreviews.clear()) {
3526            Log.e(Config.LOGTAG, "cleared pending media previews");
3527        }
3528    }
3529
3530    public Conversation getConversation() {
3531        return conversation;
3532    }
3533
3534    @Override
3535    public void onContactPictureLongClicked(View v, final Message message) {
3536        final String fingerprint;
3537        if (message.getEncryption() == Message.ENCRYPTION_PGP
3538                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3539            fingerprint = "pgp";
3540        } else {
3541            fingerprint = message.getFingerprint();
3542        }
3543        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
3544        final Contact contact = message.getContact();
3545        if (message.getStatus() <= Message.STATUS_RECEIVED
3546                && (contact == null || !contact.isSelf())) {
3547            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
3548                final Jid cp = message.getCounterpart();
3549                if (cp == null || cp.isBareJid()) {
3550                    return;
3551                }
3552                final Jid tcp = message.getTrueCounterpart();
3553                final User userByRealJid =
3554                        tcp != null
3555                                ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp)
3556                                : null;
3557                final User user =
3558                        userByRealJid != null
3559                                ? userByRealJid
3560                                : conversation.getMucOptions().findUserByFullJid(cp);
3561                popupMenu.inflate(R.menu.muc_details_context);
3562                final Menu menu = popupMenu.getMenu();
3563                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(
3564                        activity, menu, conversation, user);
3565                popupMenu.setOnMenuItemClickListener(
3566                        menuItem ->
3567                                MucDetailsContextMenuHelper.onContextItemSelected(
3568                                        menuItem, user, activity, fingerprint));
3569            } else {
3570                popupMenu.inflate(R.menu.one_on_one_context);
3571                popupMenu.setOnMenuItemClickListener(
3572                        item -> {
3573                            switch (item.getItemId()) {
3574                                case R.id.action_contact_details:
3575                                    activity.switchToContactDetails(
3576                                            message.getContact(), fingerprint);
3577                                    break;
3578                                case R.id.action_show_qr_code:
3579                                    activity.showQrCode(
3580                                            "xmpp:"
3581                                                    + message.getContact()
3582                                                            .getJid()
3583                                                            .asBareJid()
3584                                                            .toString());
3585                                    break;
3586                            }
3587                            return true;
3588                        });
3589            }
3590        } else {
3591            popupMenu.inflate(R.menu.account_context);
3592            final Menu menu = popupMenu.getMenu();
3593            menu.findItem(R.id.action_manage_accounts)
3594                    .setVisible(QuickConversationsService.isConversations());
3595            popupMenu.setOnMenuItemClickListener(
3596                    item -> {
3597                        final XmppActivity activity = this.activity;
3598                        if (activity == null) {
3599                            Log.e(Config.LOGTAG, "Unable to perform action. no context provided");
3600                            return true;
3601                        }
3602                        switch (item.getItemId()) {
3603                            case R.id.action_show_qr_code:
3604                                activity.showQrCode(conversation.getAccount().getShareableUri());
3605                                break;
3606                            case R.id.action_account_details:
3607                                activity.switchToAccount(
3608                                        message.getConversation().getAccount(), fingerprint);
3609                                break;
3610                            case R.id.action_manage_accounts:
3611                                AccountUtils.launchManageAccounts(activity);
3612                                break;
3613                        }
3614                        return true;
3615                    });
3616        }
3617        popupMenu.show();
3618    }
3619
3620    @Override
3621    public void onContactPictureClicked(Message message) {
3622        String fingerprint;
3623        if (message.getEncryption() == Message.ENCRYPTION_PGP
3624                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3625            fingerprint = "pgp";
3626        } else {
3627            fingerprint = message.getFingerprint();
3628        }
3629        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3630        if (received) {
3631            if (message.getConversation() instanceof Conversation
3632                    && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3633                Jid tcp = message.getTrueCounterpart();
3634                Jid user = message.getCounterpart();
3635                if (user != null && !user.isBareJid()) {
3636                    final MucOptions mucOptions =
3637                            ((Conversation) message.getConversation()).getMucOptions();
3638                    if (mucOptions.participating()
3639                            || ((Conversation) message.getConversation()).getNextCounterpart()
3640                                    != null) {
3641                        if (!mucOptions.isUserInRoom(user)
3642                                && mucOptions.findUserByRealJid(
3643                                                tcp == null ? null : tcp.asBareJid())
3644                                        == null) {
3645                            Toast.makeText(
3646                                            getActivity(),
3647                                            activity.getString(
3648                                                    R.string.user_has_left_conference,
3649                                                    user.getResource()),
3650                                            Toast.LENGTH_SHORT)
3651                                    .show();
3652                        }
3653                        highlightInConference(user.getResource());
3654                    } else {
3655                        Toast.makeText(
3656                                        getActivity(),
3657                                        R.string.you_are_not_participating,
3658                                        Toast.LENGTH_SHORT)
3659                                .show();
3660                    }
3661                }
3662                return;
3663            } else {
3664                if (!message.getContact().isSelf()) {
3665                    activity.switchToContactDetails(message.getContact(), fingerprint);
3666                    return;
3667                }
3668            }
3669        }
3670        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3671    }
3672
3673    private Activity requireActivity() {
3674        final Activity activity = getActivity();
3675        if (activity == null) {
3676            throw new IllegalStateException("Activity not attached");
3677        }
3678        return activity;
3679    }
3680}