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