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.net.Uri;
  26import android.os.Build;
  27import android.os.Bundle;
  28import android.os.Environment;
  29import android.os.Handler;
  30import android.os.Looper;
  31import android.os.storage.StorageManager;
  32import android.os.SystemClock;
  33import android.preference.PreferenceManager;
  34import android.provider.MediaStore;
  35import android.text.Editable;
  36import android.text.SpannableStringBuilder;
  37import android.text.TextUtils;
  38import android.text.TextWatcher;
  39import android.text.style.ImageSpan;
  40import android.util.DisplayMetrics;
  41import android.util.Log;
  42import android.view.ContextMenu;
  43import android.view.ContextMenu.ContextMenuInfo;
  44import android.view.Gravity;
  45import android.view.LayoutInflater;
  46import android.view.Menu;
  47import android.view.MenuInflater;
  48import android.view.MenuItem;
  49import android.view.MotionEvent;
  50import android.view.View;
  51import android.view.View.OnClickListener;
  52import android.view.ViewGroup;
  53import android.view.inputmethod.EditorInfo;
  54import android.view.inputmethod.InputMethodManager;
  55import android.view.WindowManager;
  56import android.widget.AbsListView;
  57import android.widget.AbsListView.OnScrollListener;
  58import android.widget.AdapterView;
  59import android.widget.AdapterView.AdapterContextMenuInfo;
  60import android.widget.CheckBox;
  61import android.widget.ListView;
  62import android.widget.PopupMenu;
  63import android.widget.PopupWindow;
  64import android.widget.TextView.OnEditorActionListener;
  65import android.widget.Toast;
  66
  67import androidx.activity.OnBackPressedCallback;
  68import androidx.annotation.IdRes;
  69import androidx.annotation.NonNull;
  70import androidx.annotation.Nullable;
  71import androidx.annotation.StringRes;
  72import androidx.appcompat.app.AlertDialog;
  73import androidx.core.content.pm.ShortcutInfoCompat;
  74import androidx.core.content.pm.ShortcutManagerCompat;
  75import androidx.core.view.inputmethod.InputConnectionCompat;
  76import androidx.core.view.inputmethod.InputContentInfoCompat;
  77import androidx.databinding.DataBindingUtil;
  78import androidx.documentfile.provider.DocumentFile;
  79import androidx.viewpager.widget.PagerAdapter;
  80import androidx.viewpager.widget.ViewPager;
  81
  82import com.cheogram.android.BobTransfer;
  83import com.cheogram.android.EmojiSearch;
  84import com.cheogram.android.WebxdcPage;
  85
  86import com.google.common.base.Optional;
  87import com.google.common.collect.ImmutableList;
  88
  89import org.jetbrains.annotations.NotNull;
  90
  91import io.ipfs.cid.Cid;
  92
  93import java.io.File;
  94import java.net.URISyntaxException;
  95import java.util.AbstractMap;
  96import java.util.ArrayList;
  97import java.util.Arrays;
  98import java.util.Collection;
  99import java.util.Collections;
 100import java.util.HashSet;
 101import java.util.Iterator;
 102import java.util.List;
 103import java.util.Map;
 104import java.util.Set;
 105import java.util.UUID;
 106import java.util.concurrent.atomic.AtomicBoolean;
 107import java.util.regex.Matcher;
 108import java.util.regex.Pattern;
 109
 110import eu.siacs.conversations.Config;
 111import eu.siacs.conversations.R;
 112import eu.siacs.conversations.crypto.axolotl.AxolotlService;
 113import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
 114import eu.siacs.conversations.databinding.EmojiSearchBinding;
 115import eu.siacs.conversations.databinding.FragmentConversationBinding;
 116import eu.siacs.conversations.entities.Account;
 117import eu.siacs.conversations.entities.Blockable;
 118import eu.siacs.conversations.entities.Contact;
 119import eu.siacs.conversations.entities.Conversation;
 120import eu.siacs.conversations.entities.Conversational;
 121import eu.siacs.conversations.entities.DownloadableFile;
 122import eu.siacs.conversations.entities.Message;
 123import eu.siacs.conversations.entities.MucOptions;
 124import eu.siacs.conversations.entities.MucOptions.User;
 125import eu.siacs.conversations.entities.Presence;
 126import eu.siacs.conversations.entities.Presences;
 127import eu.siacs.conversations.entities.ReadByMarker;
 128import eu.siacs.conversations.entities.Transferable;
 129import eu.siacs.conversations.entities.TransferablePlaceholder;
 130import eu.siacs.conversations.http.HttpDownloadConnection;
 131import eu.siacs.conversations.persistance.FileBackend;
 132import eu.siacs.conversations.services.MessageArchiveService;
 133import eu.siacs.conversations.services.QuickConversationsService;
 134import eu.siacs.conversations.services.XmppConnectionService;
 135import eu.siacs.conversations.ui.adapter.CommandAdapter;
 136import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
 137import eu.siacs.conversations.ui.adapter.MessageAdapter;
 138import eu.siacs.conversations.ui.util.ActivityResult;
 139import eu.siacs.conversations.ui.util.Attachment;
 140import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
 141import eu.siacs.conversations.ui.util.DateSeparator;
 142import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
 143import eu.siacs.conversations.ui.util.ListViewUtils;
 144import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 145import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 146import eu.siacs.conversations.ui.util.PendingItem;
 147import eu.siacs.conversations.ui.util.PresenceSelector;
 148import eu.siacs.conversations.ui.util.ScrollState;
 149import eu.siacs.conversations.ui.util.SendButtonAction;
 150import eu.siacs.conversations.ui.util.SendButtonTool;
 151import eu.siacs.conversations.ui.util.ShareUtil;
 152import eu.siacs.conversations.ui.util.StyledAttributes;
 153import eu.siacs.conversations.ui.util.ViewUtil;
 154import eu.siacs.conversations.ui.widget.EditMessage;
 155import eu.siacs.conversations.utils.AccountUtils;
 156import eu.siacs.conversations.utils.Compatibility;
 157import eu.siacs.conversations.utils.Emoticons;
 158import eu.siacs.conversations.utils.GeoHelper;
 159import eu.siacs.conversations.utils.MessageUtils;
 160import eu.siacs.conversations.utils.MimeUtils;
 161import eu.siacs.conversations.utils.NickValidityChecker;
 162import eu.siacs.conversations.utils.PermissionUtils;
 163import eu.siacs.conversations.utils.QuickLoader;
 164import eu.siacs.conversations.utils.StylingHelper;
 165import eu.siacs.conversations.utils.TimeFrameUtils;
 166import eu.siacs.conversations.utils.UIHelper;
 167import eu.siacs.conversations.xml.Element;
 168import eu.siacs.conversations.xml.Namespace;
 169import eu.siacs.conversations.xmpp.Jid;
 170import eu.siacs.conversations.xmpp.XmppConnection;
 171import eu.siacs.conversations.xmpp.chatstate.ChatState;
 172import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 173import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 174import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 175import eu.siacs.conversations.xmpp.jingle.Media;
 176import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 177import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 178import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 179
 180import org.jetbrains.annotations.NotNull;
 181
 182import java.util.ArrayList;
 183import java.util.Arrays;
 184import java.util.Collection;
 185import java.util.Collections;
 186import java.util.HashSet;
 187import java.util.Iterator;
 188import java.util.List;
 189import java.util.Set;
 190import java.util.UUID;
 191import java.util.concurrent.atomic.AtomicBoolean;
 192
 193import org.jetbrains.annotations.NotNull;
 194
 195import java.util.ArrayList;
 196import java.util.Arrays;
 197import java.util.Collection;
 198import java.util.Collections;
 199import java.util.HashSet;
 200import java.util.Iterator;
 201import java.util.List;
 202import java.util.Set;
 203import java.util.UUID;
 204import java.util.concurrent.atomic.AtomicBoolean;
 205
 206public class ConversationFragment extends XmppFragment
 207        implements EditMessage.KeyboardListener,
 208                MessageAdapter.OnContactPictureLongClicked,
 209                MessageAdapter.OnContactPictureClicked,
 210                MessageAdapter.OnInlineImageLongClicked {
 211
 212    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 213    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 214    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 215    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 216    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 217    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 218    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 219    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 220    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 221    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 222    public static final int REQUEST_SAVE_STICKER = 0x215;
 223    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 224    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 225    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 226    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 227    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 228    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 229    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 230
 231    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 232    public static final String STATE_CONVERSATION_UUID =
 233            ConversationFragment.class.getName() + ".uuid";
 234    public static final String STATE_SCROLL_POSITION =
 235            ConversationFragment.class.getName() + ".scroll_position";
 236    public static final String STATE_PHOTO_URI =
 237            ConversationFragment.class.getName() + ".media_previews";
 238    public static final String STATE_MEDIA_PREVIEWS =
 239            ConversationFragment.class.getName() + ".take_photo_uri";
 240    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 241
 242    private final List<Message> messageList = new ArrayList<>();
 243    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 244    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 245    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 246    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 247    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 248    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 249    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 250    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 251    public Uri mPendingEditorContent = null;
 252    protected MessageAdapter messageListAdapter;
 253    protected CommandAdapter commandAdapter;
 254    private MediaPreviewAdapter mediaPreviewAdapter;
 255    private String lastMessageUuid = null;
 256    private Conversation conversation;
 257    private FragmentConversationBinding binding;
 258    private Toast messageLoaderToast;
 259    private ConversationsActivity activity;
 260    private boolean reInitRequiredOnStart = true;
 261    private int identiconWidth = -1;
 262    private File savingAsSticker = null;
 263    private EmojiSearch emojiSearch = null;
 264    private EmojiSearchBinding emojiSearchBinding = null;
 265    private PopupWindow emojiPopup = null;
 266    private final OnClickListener clickToMuc =
 267            new OnClickListener() {
 268
 269                @Override
 270                public void onClick(View v) {
 271                    ConferenceDetailsActivity.open(getActivity(), conversation);
 272                }
 273            };
 274    private final OnClickListener leaveMuc =
 275            new OnClickListener() {
 276
 277                @Override
 278                public void onClick(View v) {
 279                    activity.xmppConnectionService.archiveConversation(conversation);
 280                }
 281            };
 282    private final OnClickListener joinMuc =
 283            new OnClickListener() {
 284
 285                @Override
 286                public void onClick(View v) {
 287                    activity.xmppConnectionService.joinMuc(conversation);
 288                }
 289            };
 290
 291    private final OnClickListener acceptJoin =
 292            new OnClickListener() {
 293                @Override
 294                public void onClick(View v) {
 295                    conversation.setAttribute("accept_non_anonymous", true);
 296                    activity.xmppConnectionService.updateConversation(conversation);
 297                    activity.xmppConnectionService.joinMuc(conversation);
 298                }
 299            };
 300
 301    private final OnClickListener enterPassword =
 302            new OnClickListener() {
 303
 304                @Override
 305                public void onClick(View v) {
 306                    MucOptions muc = conversation.getMucOptions();
 307                    String password = muc.getPassword();
 308                    if (password == null) {
 309                        password = "";
 310                    }
 311                    activity.quickPasswordEdit(
 312                            password,
 313                            value -> {
 314                                activity.xmppConnectionService.providePasswordForMuc(
 315                                        conversation, value);
 316                                return null;
 317                            });
 318                }
 319            };
 320    private final OnScrollListener mOnScrollListener =
 321            new OnScrollListener() {
 322
 323                @Override
 324                public void onScrollStateChanged(AbsListView view, int scrollState) {
 325                    if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 326                        updateThreadFromLastMessage();
 327                        fireReadEvent();
 328                    }
 329                }
 330
 331                @Override
 332                public void onScroll(
 333                        final AbsListView view,
 334                        int firstVisibleItem,
 335                        int visibleItemCount,
 336                        int totalItemCount) {
 337                    toggleScrollDownButton(view);
 338                    synchronized (ConversationFragment.this.messageList) {
 339                        if (firstVisibleItem < 5
 340                                && conversation != null
 341                                && conversation.messagesLoaded.compareAndSet(true, false)
 342                                && messageList.size() > 0) {
 343                            long timestamp = conversation.loadMoreTimestamp();
 344                            activity.xmppConnectionService.loadMoreMessages(
 345                                    conversation,
 346                                    timestamp,
 347                                    new XmppConnectionService.OnMoreMessagesLoaded() {
 348                                        @Override
 349                                        public void onMoreMessagesLoaded(
 350                                                final int c, final Conversation conversation) {
 351                                            if (ConversationFragment.this.conversation
 352                                                    != conversation) {
 353                                                conversation.messagesLoaded.set(true);
 354                                                return;
 355                                            }
 356                                            runOnUiThread(
 357                                                    () -> {
 358                                                        synchronized (messageList) {
 359                                                            final int oldPosition =
 360                                                                    binding.messagesView
 361                                                                            .getFirstVisiblePosition();
 362                                                            Message message = null;
 363                                                            int childPos;
 364                                                            for (childPos = 0;
 365                                                                    childPos + oldPosition
 366                                                                            < messageList.size();
 367                                                                    ++childPos) {
 368                                                                message =
 369                                                                        messageList.get(
 370                                                                                oldPosition
 371                                                                                        + childPos);
 372                                                                if (message.getType()
 373                                                                        != Message.TYPE_STATUS) {
 374                                                                    break;
 375                                                                }
 376                                                            }
 377                                                            final String uuid =
 378                                                                    message != null
 379                                                                            ? message.getUuid()
 380                                                                            : null;
 381                                                            View v =
 382                                                                    binding.messagesView.getChildAt(
 383                                                                            childPos);
 384                                                            final int pxOffset =
 385                                                                    (v == null) ? 0 : v.getTop();
 386                                                            ConversationFragment.this.conversation
 387                                                                    .populateWithMessages(
 388                                                                            ConversationFragment
 389                                                                                    .this
 390                                                                                    .messageList);
 391                                                            try {
 392                                                                updateStatusMessages();
 393                                                            } catch (IllegalStateException e) {
 394                                                                Log.d(
 395                                                                        Config.LOGTAG,
 396                                                                        "caught illegal state exception while updating status messages");
 397                                                            }
 398                                                            messageListAdapter
 399                                                                    .notifyDataSetChanged();
 400                                                            int pos =
 401                                                                    Math.max(
 402                                                                            getIndexOf(
 403                                                                                    uuid,
 404                                                                                    messageList),
 405                                                                            0);
 406                                                            binding.messagesView
 407                                                                    .setSelectionFromTop(
 408                                                                            pos, pxOffset);
 409                                                            if (messageLoaderToast != null) {
 410                                                                messageLoaderToast.cancel();
 411                                                            }
 412                                                            conversation.messagesLoaded.set(true);
 413                                                        }
 414                                                    });
 415                                        }
 416
 417                                        @Override
 418                                        public void informUser(final int resId) {
 419
 420                                            runOnUiThread(
 421                                                    () -> {
 422                                                        if (messageLoaderToast != null) {
 423                                                            messageLoaderToast.cancel();
 424                                                        }
 425                                                        if (ConversationFragment.this.conversation
 426                                                                != conversation) {
 427                                                            return;
 428                                                        }
 429                                                        messageLoaderToast =
 430                                                                Toast.makeText(
 431                                                                        view.getContext(),
 432                                                                        resId,
 433                                                                        Toast.LENGTH_LONG);
 434                                                        messageLoaderToast.show();
 435                                                    });
 436                                        }
 437                                    });
 438                        }
 439                    }
 440                }
 441            };
 442    private final EditMessage.OnCommitContentListener mEditorContentListener =
 443            new EditMessage.OnCommitContentListener() {
 444                @Override
 445                public boolean onCommitContent(
 446                        InputContentInfoCompat inputContentInfo,
 447                        int flags,
 448                        Bundle opts,
 449                        String[] contentMimeTypes) {
 450                    // try to get permission to read the image, if applicable
 451                    if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION)
 452                            != 0) {
 453                        try {
 454                            inputContentInfo.requestPermission();
 455                        } catch (Exception e) {
 456                            Log.e(
 457                                    Config.LOGTAG,
 458                                    "InputContentInfoCompat#requestPermission() failed.",
 459                                    e);
 460                            Toast.makeText(
 461                                            getActivity(),
 462                                            activity.getString(
 463                                                    R.string.no_permission_to_access_x,
 464                                                    inputContentInfo.getDescription()),
 465                                            Toast.LENGTH_LONG)
 466                                    .show();
 467                            return false;
 468                        }
 469                    }
 470                    if (hasPermissions(
 471                            REQUEST_ADD_EDITOR_CONTENT,
 472                            Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 473                        attachEditorContentToConversation(inputContentInfo.getContentUri());
 474                    } else {
 475                        mPendingEditorContent = inputContentInfo.getContentUri();
 476                    }
 477                    return true;
 478                }
 479            };
 480    private Message selectedMessage;
 481    private final OnClickListener mEnableAccountListener =
 482            new OnClickListener() {
 483                @Override
 484                public void onClick(View v) {
 485                    final Account account = conversation == null ? null : conversation.getAccount();
 486                    if (account != null) {
 487                        account.setOption(Account.OPTION_SOFT_DISABLED, false);
 488                        account.setOption(Account.OPTION_DISABLED, false);
 489                        activity.xmppConnectionService.updateAccount(account);
 490                    }
 491                }
 492            };
 493    private final OnClickListener mUnblockClickListener =
 494            new OnClickListener() {
 495                @Override
 496                public void onClick(final View v) {
 497                    v.post(() -> v.setVisibility(View.INVISIBLE));
 498                    if (conversation.isDomainBlocked()) {
 499                        BlockContactDialog.show(activity, conversation);
 500                    } else {
 501                        unblockConversation(conversation);
 502                    }
 503                }
 504            };
 505    private final OnClickListener mBlockClickListener = this::showBlockSubmenu;
 506    private final OnClickListener mAddBackClickListener =
 507            new OnClickListener() {
 508
 509                @Override
 510                public void onClick(View v) {
 511                    final Contact contact = conversation == null ? null : conversation.getContact();
 512                    if (contact != null) {
 513                        activity.xmppConnectionService.createContact(contact, true);
 514                        activity.switchToContactDetails(contact);
 515                    }
 516                }
 517            };
 518    private final View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 519    private final OnClickListener mAllowPresenceSubscription =
 520            new OnClickListener() {
 521                @Override
 522                public void onClick(View v) {
 523                    final Contact contact = conversation == null ? null : conversation.getContact();
 524                    if (contact != null) {
 525                        activity.xmppConnectionService.sendPresencePacket(
 526                                contact.getAccount(),
 527                                activity.xmppConnectionService
 528                                        .getPresenceGenerator()
 529                                        .sendPresenceUpdatesTo(contact));
 530                        hideSnackbar();
 531                    }
 532                }
 533            };
 534    protected OnClickListener clickToDecryptListener =
 535            new OnClickListener() {
 536
 537                @Override
 538                public void onClick(View v) {
 539                    PendingIntent pendingIntent =
 540                            conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 541                    if (pendingIntent != null) {
 542                        try {
 543                            getActivity()
 544                                    .startIntentSenderForResult(
 545                                            pendingIntent.getIntentSender(),
 546                                            REQUEST_DECRYPT_PGP,
 547                                            null,
 548                                            0,
 549                                            0,
 550                                            0,
 551                                            Compatibility.pgpStartIntentSenderOptions());
 552                        } catch (SendIntentException e) {
 553                            Toast.makeText(
 554                                            getActivity(),
 555                                            R.string.unable_to_connect_to_keychain,
 556                                            Toast.LENGTH_SHORT)
 557                                    .show();
 558                            conversation
 559                                    .getAccount()
 560                                    .getPgpDecryptionService()
 561                                    .continueDecryption(true);
 562                        }
 563                    }
 564                    updateSnackBar(conversation);
 565                }
 566            };
 567    private final AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 568    private final OnEditorActionListener mEditorActionListener =
 569            (v, actionId, event) -> {
 570                if (actionId == EditorInfo.IME_ACTION_SEND) {
 571                    InputMethodManager imm =
 572                            (InputMethodManager)
 573                                    activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 574                    if (imm != null && imm.isFullscreenMode()) {
 575                        imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 576                    }
 577                    sendMessage();
 578                    return true;
 579                } else {
 580                    return false;
 581                }
 582            };
 583    private final OnClickListener mScrollButtonListener =
 584            new OnClickListener() {
 585
 586                @Override
 587                public void onClick(View v) {
 588                    stopScrolling();
 589                    setSelection(binding.messagesView.getCount() - 1, true);
 590                }
 591            };
 592    private final OnClickListener mSendButtonListener =
 593            new OnClickListener() {
 594
 595                @Override
 596                public void onClick(View v) {
 597                    Object tag = v.getTag();
 598                    if (tag instanceof SendButtonAction) {
 599                        SendButtonAction action = (SendButtonAction) tag;
 600                        switch (action) {
 601                            case TAKE_PHOTO:
 602                            case RECORD_VIDEO:
 603                            case SEND_LOCATION:
 604                            case RECORD_VOICE:
 605                            case CHOOSE_PICTURE:
 606                                attachFile(action.toChoice());
 607                                break;
 608                            case CANCEL:
 609                                if (conversation != null) {
 610                                    conversation.setUserSelectedThread(false);
 611                                    if (conversation.setCorrectingMessage(null)) {
 612                                        binding.textinput.setText("");
 613                                        binding.textinput.append(conversation.getDraftMessage());
 614                                        conversation.setDraftMessage(null);
 615                                    } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 616                                        conversation.setNextCounterpart(null);
 617                                        binding.textinput.setText("");
 618                                    } else {
 619                                        binding.textinput.setText("");
 620                                    }
 621                                    binding.textinputSubject.setText("");
 622                                    binding.textinputSubject.setVisibility(View.GONE);
 623                                    updateChatMsgHint();
 624                                    updateSendButton();
 625                                    updateEditablity();
 626                                }
 627                                break;
 628                            default:
 629                                sendMessage();
 630                        }
 631                    } else {
 632                        sendMessage();
 633                    }
 634                }
 635            };
 636    private OnBackPressedCallback backPressedLeaveSingleThread = new OnBackPressedCallback(false) {
 637        @Override
 638        public void handleOnBackPressed() {
 639            conversation.setLockThread(false);
 640            this.setEnabled(false);
 641            conversation.setUserSelectedThread(false);
 642            setThread(null);
 643            refresh();
 644            updateThreadFromLastMessage();
 645        }
 646    };
 647    private int completionIndex = 0;
 648    private int lastCompletionLength = 0;
 649    private String incomplete;
 650    private int lastCompletionCursor;
 651    private boolean firstWord = false;
 652    private Message mPendingDownloadableMessage;
 653
 654    private static ConversationFragment findConversationFragment(Activity activity) {
 655        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 656        if (fragment instanceof ConversationFragment) {
 657            return (ConversationFragment) fragment;
 658        }
 659        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 660        if (fragment instanceof ConversationFragment) {
 661            return (ConversationFragment) fragment;
 662        }
 663        return null;
 664    }
 665
 666    public static void startStopPending(Activity activity) {
 667        ConversationFragment fragment = findConversationFragment(activity);
 668        if (fragment != null) {
 669            fragment.messageListAdapter.startStopPending();
 670        }
 671    }
 672
 673    public static void downloadFile(Activity activity, Message message) {
 674        ConversationFragment fragment = findConversationFragment(activity);
 675        if (fragment != null) {
 676            fragment.startDownloadable(message);
 677        }
 678    }
 679
 680    public static void registerPendingMessage(Activity activity, Message message) {
 681        ConversationFragment fragment = findConversationFragment(activity);
 682        if (fragment != null) {
 683            fragment.pendingMessage.push(message);
 684        }
 685    }
 686
 687    public static void openPendingMessage(Activity activity) {
 688        ConversationFragment fragment = findConversationFragment(activity);
 689        if (fragment != null) {
 690            Message message = fragment.pendingMessage.pop();
 691            if (message != null) {
 692                fragment.messageListAdapter.openDownloadable(message);
 693            }
 694        }
 695    }
 696
 697    public static Conversation getConversation(Activity activity) {
 698        return getConversation(activity, R.id.secondary_fragment);
 699    }
 700
 701    private static Conversation getConversation(Activity activity, @IdRes int res) {
 702        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 703        if (fragment instanceof ConversationFragment) {
 704            return ((ConversationFragment) fragment).getConversation();
 705        } else {
 706            return null;
 707        }
 708    }
 709
 710    public static ConversationFragment get(Activity activity) {
 711        FragmentManager fragmentManager = activity.getFragmentManager();
 712        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 713        if (fragment instanceof ConversationFragment) {
 714            return (ConversationFragment) fragment;
 715        } else {
 716            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 717            return fragment instanceof ConversationFragment
 718                    ? (ConversationFragment) fragment
 719                    : null;
 720        }
 721    }
 722
 723    public static Conversation getConversationReliable(Activity activity) {
 724        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 725        if (conversation != null) {
 726            return conversation;
 727        }
 728        return getConversation(activity, R.id.main_fragment);
 729    }
 730
 731    private static boolean scrolledToBottom(AbsListView listView) {
 732        final int count = listView.getCount();
 733        if (count == 0) {
 734            return true;
 735        } else if (listView.getLastVisiblePosition() == count - 1) {
 736            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 737            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 738        } else {
 739            return false;
 740        }
 741    }
 742
 743    private void toggleScrollDownButton() {
 744        toggleScrollDownButton(binding.messagesView);
 745    }
 746
 747    private void toggleScrollDownButton(AbsListView listView) {
 748        if (conversation == null) {
 749            return;
 750        }
 751        if (scrolledToBottom(listView)) {
 752            lastMessageUuid = null;
 753            hideUnreadMessagesCount();
 754        } else {
 755            binding.scrollToBottomButton.setEnabled(true);
 756            binding.scrollToBottomButton.show();
 757            if (lastMessageUuid == null) {
 758                lastMessageUuid = conversation.getLatestMessage().getUuid();
 759            }
 760            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 761                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 762            }
 763        }
 764    }
 765
 766    private int getIndexOf(String uuid, List<Message> messages) {
 767        if (uuid == null) {
 768            return messages.size() - 1;
 769        }
 770        for (int i = 0; i < messages.size(); ++i) {
 771            if (uuid.equals(messages.get(i).getUuid())) {
 772                return i;
 773            } else {
 774                Message next = messages.get(i);
 775                while (next != null && next.wasMergedIntoPrevious()) {
 776                    if (uuid.equals(next.getUuid())) {
 777                        return i;
 778                    }
 779                    next = next.next();
 780                }
 781            }
 782        }
 783        return -1;
 784    }
 785
 786    private ScrollState getScrollPosition() {
 787        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 788        if (listView == null
 789                || listView.getCount() == 0
 790                || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 791            return null;
 792        } else {
 793            final int pos = listView.getFirstVisiblePosition();
 794            final View view = listView.getChildAt(0);
 795            if (view == null) {
 796                return null;
 797            } else {
 798                return new ScrollState(pos, view.getTop());
 799            }
 800        }
 801    }
 802
 803    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 804        if (scrollPosition != null) {
 805
 806            this.lastMessageUuid = lastMessageUuid;
 807            if (lastMessageUuid != null) {
 808                binding.unreadCountCustomView.setUnreadCount(
 809                        conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 810            }
 811            // TODO maybe this needs a 'post'
 812            this.binding.messagesView.setSelectionFromTop(
 813                    scrollPosition.position, scrollPosition.offset);
 814            toggleScrollDownButton();
 815        }
 816    }
 817
 818    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 819        if (conversation == null) {
 820            return;
 821        }
 822        final String subject = binding.textinputSubject.getText().toString();
 823        activity.xmppConnectionService.attachLocationToConversation(
 824                conversation,
 825                uri,
 826                subject,
 827                new UiCallback<Message>() {
 828
 829                    @Override
 830                    public void success(Message message) {
 831                        messageSent();
 832                    }
 833
 834                    @Override
 835                    public void error(int errorCode, Message object) {
 836                        // TODO show possible pgp error
 837                    }
 838
 839                    @Override
 840                    public void userInputRequired(PendingIntent pi, Message object) {}
 841                });
 842    }
 843
 844    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 845        if (conversation == null) {
 846            return;
 847        }
 848        final String subject = binding.textinputSubject.getText().toString();
 849        if (type == "application/xdc+zip") newSubThread();
 850        final Toast prepareFileToast =
 851                Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 852        prepareFileToast.show();
 853        activity.delegateUriPermissionsToService(uri);
 854        activity.xmppConnectionService.attachFileToConversation(
 855                conversation,
 856                uri,
 857                type,
 858                subject,
 859                new UiInformableCallback<Message>() {
 860                    @Override
 861                    public void inform(final String text) {
 862                        hidePrepareFileToast(prepareFileToast);
 863                        runOnUiThread(() -> activity.replaceToast(text));
 864                    }
 865
 866                    @Override
 867                    public void success(Message message) {
 868                        runOnUiThread(() -> {
 869                            activity.hideToast();
 870                            messageSent();
 871                        });
 872                        hidePrepareFileToast(prepareFileToast);
 873                    }
 874
 875                    @Override
 876                    public void error(final int errorCode, Message message) {
 877                        hidePrepareFileToast(prepareFileToast);
 878                        runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 879                    }
 880
 881                    @Override
 882                    public void userInputRequired(PendingIntent pi, Message message) {
 883                        hidePrepareFileToast(prepareFileToast);
 884                    }
 885                });
 886    }
 887
 888    public void attachEditorContentToConversation(Uri uri) {
 889        mediaPreviewAdapter.addMediaPreviews(
 890                Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 891        toggleInputMethod();
 892    }
 893
 894    private void attachImageToConversation(Conversation conversation, Uri uri, String type) {
 895        if (conversation == null) {
 896            return;
 897        }
 898        final String subject = binding.textinputSubject.getText().toString();
 899        final Toast prepareFileToast =
 900                Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 901        prepareFileToast.show();
 902        activity.delegateUriPermissionsToService(uri);
 903        activity.xmppConnectionService.attachImageToConversation(
 904                conversation,
 905                uri,
 906                type,
 907                subject,
 908                new UiCallback<Message>() {
 909
 910                    @Override
 911                    public void userInputRequired(PendingIntent pi, Message object) {
 912                        hidePrepareFileToast(prepareFileToast);
 913                    }
 914
 915                    @Override
 916                    public void success(Message message) {
 917                        hidePrepareFileToast(prepareFileToast);
 918                        runOnUiThread(() -> messageSent());
 919                    }
 920
 921                    @Override
 922                    public void error(final int error, final Message message) {
 923                        hidePrepareFileToast(prepareFileToast);
 924                        final ConversationsActivity activity = ConversationFragment.this.activity;
 925                        if (activity == null) {
 926                            return;
 927                        }
 928                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 929                    }
 930                });
 931    }
 932
 933    private void hidePrepareFileToast(final Toast prepareFileToast) {
 934        if (prepareFileToast != null && activity != null) {
 935            activity.runOnUiThread(prepareFileToast::cancel);
 936        }
 937    }
 938
 939    private void sendMessage() {
 940        if (mediaPreviewAdapter.hasAttachments()) {
 941            commitAttachments();
 942            return;
 943        }
 944        Editable body = this.binding.textinput.getText();
 945        if (body == null) body = new SpannableStringBuilder("");
 946        final Conversation conversation = this.conversation;
 947        final boolean hasSubject = binding.textinputSubject.getText().length() > 0;
 948        if (conversation == null || (body.length() == 0 && (conversation.getThread() == null || !hasSubject))) {
 949            binding.textSendButton.showContextMenu(0, 0);
 950            return;
 951        }
 952        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_TEXT)) {
 953            return;
 954        }
 955        final Message message;
 956        if (conversation.getCorrectingMessage() == null) {
 957            boolean attention = false;
 958            if (Pattern.compile("\\A@here\\s.*").matcher(body).find()) {
 959                attention = true;
 960                body.delete(0, 6);
 961                while (body.length() > 0 && Character.isWhitespace(body.charAt(0))) body.delete(0, 1);
 962            }
 963            if (conversation.getReplyTo() != null) {
 964                if (Emoticons.isEmoji(body.toString().replaceAll("\\s", ""))) {
 965                    message = conversation.getReplyTo().react(body.toString().replaceAll("\\s", ""));
 966                } else {
 967                    message = conversation.getReplyTo().reply();
 968                    message.appendBody(body);
 969                }
 970                message.setEncryption(conversation.getNextEncryption());
 971            } else {
 972                message = new Message(conversation, body.toString(), conversation.getNextEncryption());
 973                message.setBody(hasSubject && body.length() == 0 ? null : body);
 974                if (message.bodyIsOnlyEmojis()) {
 975                    SpannableStringBuilder spannable = message.getSpannableBody(null, null);
 976                    ImageSpan[] imageSpans = spannable.getSpans(0, spannable.length(), ImageSpan.class);
 977                    if (imageSpans.length == 1) {
 978                        // Only one inline image, so it's a sticker
 979                        String source = imageSpans[0].getSource();
 980                        if (source != null && source.length() > 0 && source.substring(0, 4).equals("cid:")) {
 981                            try {
 982                                final Cid cid = BobTransfer.cid(Uri.parse(source));
 983                                final String url = activity.xmppConnectionService.getUrlForCid(cid);
 984                                final File f = activity.xmppConnectionService.getFileForCid(cid);
 985                                if (url != null) {
 986                                    message.setBody("");
 987                                    message.setRelativeFilePath(f.getAbsolutePath());
 988                                    activity.xmppConnectionService.getFileBackend().updateFileParams(message);
 989                                }
 990                            } catch (final Exception e) { }
 991                        }
 992                    }
 993                }
 994            }
 995            if (hasSubject) message.setSubject(binding.textinputSubject.getText().toString());
 996            message.setThread(conversation.getThread());
 997            if (attention) {
 998                message.addPayload(new Element("attention", "urn:xmpp:attention:0"));
 999            }
1000            Message.configurePrivateMessage(message);
1001        } else {
1002            message = conversation.getCorrectingMessage();
1003            message.setBody(hasSubject && body.length() == 0 ? null : body);
1004            if (hasSubject) message.setSubject(binding.textinputSubject.getText().toString());
1005            message.setThread(conversation.getThread());
1006            message.putEdited(message.getUuid(), message.getServerMsgId());
1007            message.setServerMsgId(null);
1008            message.setUuid(UUID.randomUUID().toString());
1009        }
1010        switch (conversation.getNextEncryption()) {
1011            case Message.ENCRYPTION_PGP:
1012                sendPgpMessage(message);
1013                break;
1014            default:
1015                sendMessage(message);
1016        }
1017        setupReply(null);
1018    }
1019
1020    private boolean trustKeysIfNeeded(final Conversation conversation, final int requestCode) {
1021        return conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL
1022                && trustKeysIfNeeded(requestCode);
1023    }
1024
1025    protected boolean trustKeysIfNeeded(int requestCode) {
1026        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
1027        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
1028        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
1029        boolean hasUndecidedOwn =
1030                !axolotlService
1031                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided())
1032                        .isEmpty();
1033        boolean hasUndecidedContacts =
1034                !axolotlService
1035                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets)
1036                        .isEmpty();
1037        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
1038        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
1039        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
1040        if (hasUndecidedOwn
1041                || hasUndecidedContacts
1042                || hasPendingKeys
1043                || hasNoTrustedKeys
1044                || hasUnaccepted
1045                || downloadInProgress) {
1046            axolotlService.createSessionsIfNeeded(conversation);
1047            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
1048            String[] contacts = new String[targets.size()];
1049            for (int i = 0; i < contacts.length; ++i) {
1050                contacts[i] = targets.get(i).toString();
1051            }
1052            intent.putExtra("contacts", contacts);
1053            intent.putExtra(
1054                    EXTRA_ACCOUNT,
1055                    conversation.getAccount().getJid().asBareJid().toEscapedString());
1056            intent.putExtra("conversation", conversation.getUuid());
1057            startActivityForResult(intent, requestCode);
1058            return true;
1059        } else {
1060            return false;
1061        }
1062    }
1063
1064    public void updateChatMsgHint() {
1065        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
1066        if (conversation.getCorrectingMessage() != null) {
1067            this.binding.textInputHint.setVisibility(View.GONE);
1068            this.binding.textinput.setHint(R.string.send_corrected_message);
1069            binding.conversationViewPager.setCurrentItem(0);
1070        } else if (multi && conversation.getNextCounterpart() != null) {
1071            this.binding.textinput.setHint(R.string.send_message);
1072            this.binding.textInputHint.setVisibility(View.VISIBLE);
1073            final MucOptions.User user = conversation.getMucOptions().findUserByName(conversation.getNextCounterpart().getResource());
1074            String nick = user == null ? null : user.getNick();
1075            if (nick == null) nick = conversation.getNextCounterpart().getResource();
1076            this.binding.textInputHint.setText(
1077                    getString(
1078                            R.string.send_private_message_to,
1079                            nick));
1080            binding.conversationViewPager.setCurrentItem(0);
1081        } else if (multi && !conversation.getMucOptions().participating()) {
1082            this.binding.textInputHint.setVisibility(View.GONE);
1083            this.binding.textinput.setHint(R.string.you_are_not_participating);
1084        } else {
1085            this.binding.textInputHint.setVisibility(View.GONE);
1086            this.binding.textinput.setHint(UIHelper.getMessageHint(activity, conversation));
1087            activity.invalidateOptionsMenu();
1088        }
1089
1090        binding.messagesView.post(this::updateThreadFromLastMessage);
1091    }
1092
1093    public void setupIme() {
1094        this.binding.textinput.refreshIme();
1095    }
1096
1097    private void handleActivityResult(ActivityResult activityResult) {
1098        if (activityResult.resultCode == Activity.RESULT_OK) {
1099            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
1100        } else {
1101            handleNegativeActivityResult(activityResult.requestCode);
1102        }
1103    }
1104
1105    private void handlePositiveActivityResult(int requestCode, final Intent data) {
1106        switch (requestCode) {
1107            case REQUEST_SAVE_STICKER:
1108                final DocumentFile df = DocumentFile.fromSingleUri(activity, data.getData());
1109                final File f = savingAsSticker;
1110                savingAsSticker = null;
1111                try {
1112                    activity.xmppConnectionService.getFileBackend().copyFileToDocumentFile(activity, f, df);
1113                    Toast.makeText(activity, "Sticker saved", Toast.LENGTH_SHORT).show();
1114                } catch (final FileBackend.FileCopyException e) {
1115                    Toast.makeText(activity, e.getResId(), Toast.LENGTH_SHORT).show();
1116                }
1117                break;
1118            case REQUEST_TRUST_KEYS_TEXT:
1119                sendMessage();
1120                break;
1121            case REQUEST_TRUST_KEYS_ATTACHMENTS:
1122                commitAttachments();
1123                break;
1124            case REQUEST_START_AUDIO_CALL:
1125                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1126                break;
1127            case REQUEST_START_VIDEO_CALL:
1128                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1129                break;
1130            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1131                final List<Attachment> imageUris =
1132                        Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
1133                mediaPreviewAdapter.addMediaPreviews(imageUris);
1134                toggleInputMethod();
1135                break;
1136            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1137                final Uri takePhotoUri = pendingTakePhotoUri.pop();
1138                if (takePhotoUri != null) {
1139                    mediaPreviewAdapter.addMediaPreviews(
1140                            Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
1141                    toggleInputMethod();
1142                } else {
1143                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
1144                }
1145                break;
1146            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1147            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1148            case ATTACHMENT_CHOICE_RECORD_VOICE:
1149                final Attachment.Type type =
1150                        requestCode == ATTACHMENT_CHOICE_RECORD_VOICE
1151                                ? Attachment.Type.RECORDING
1152                                : Attachment.Type.FILE;
1153                final List<Attachment> fileUris =
1154                        Attachment.extractAttachments(getActivity(), data, type);
1155                mediaPreviewAdapter.addMediaPreviews(fileUris);
1156                toggleInputMethod();
1157                break;
1158            case ATTACHMENT_CHOICE_LOCATION:
1159                final double latitude = data.getDoubleExtra("latitude", 0);
1160                final double longitude = data.getDoubleExtra("longitude", 0);
1161                final int accuracy = data.getIntExtra("accuracy", 0);
1162                final Uri geo;
1163                if (accuracy > 0) {
1164                    geo = Uri.parse(String.format("geo:%s,%s;u=%s", latitude, longitude, accuracy));
1165                } else {
1166                    geo = Uri.parse(String.format("geo:%s,%s", latitude, longitude));
1167                }
1168                mediaPreviewAdapter.addMediaPreviews(
1169                        Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
1170                toggleInputMethod();
1171                break;
1172            case REQUEST_INVITE_TO_CONVERSATION:
1173                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
1174                if (invite != null) {
1175                    if (invite.execute(activity)) {
1176                        activity.mToast =
1177                                Toast.makeText(
1178                                        activity, R.string.creating_conference, Toast.LENGTH_LONG);
1179                        activity.mToast.show();
1180                    }
1181                }
1182                break;
1183        }
1184    }
1185
1186    private void commitAttachments() {
1187        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
1188        if (anyNeedsExternalStoragePermission(attachments)
1189                && !hasPermissions(
1190                        REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1191            return;
1192        }
1193        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_ATTACHMENTS)) {
1194            return;
1195        }
1196        final PresenceSelector.OnPresenceSelected callback =
1197                () -> {
1198                    for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
1199                        final Attachment attachment = i.next();
1200                        if (attachment.getType() == Attachment.Type.LOCATION) {
1201                            attachLocationToConversation(conversation, attachment.getUri());
1202                        } else if (attachment.getType() == Attachment.Type.IMAGE) {
1203                            Log.d(
1204                                    Config.LOGTAG,
1205                                    "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
1206                            attachImageToConversation(
1207                                    conversation, attachment.getUri(), attachment.getMime());
1208                        } else {
1209                            Log.d(
1210                                    Config.LOGTAG,
1211                                    "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
1212                            attachFileToConversation(
1213                                    conversation, attachment.getUri(), attachment.getMime());
1214                        }
1215                    }
1216                    mediaPreviewAdapter.notifyDataSetChanged();
1217                    toggleInputMethod();
1218                };
1219        if (conversation == null
1220                || conversation.getMode() == Conversation.MODE_MULTI
1221                || Attachment.canBeSendInband(attachments)
1222                || (conversation.getAccount().httpUploadAvailable()
1223                        && FileBackend.allFilesUnderSize(
1224                                getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
1225            callback.onPresenceSelected();
1226        } else {
1227            activity.selectPresence(conversation, callback);
1228        }
1229    }
1230
1231    private static boolean anyNeedsExternalStoragePermission(
1232            final Collection<Attachment> attachments) {
1233        for (final Attachment attachment : attachments) {
1234            if (attachment.getType() != Attachment.Type.LOCATION) {
1235                return true;
1236            }
1237        }
1238        return false;
1239    }
1240
1241    public void toggleInputMethod() {
1242        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
1243        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
1244        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
1245        updateSendButton();
1246    }
1247
1248    private void handleNegativeActivityResult(int requestCode) {
1249        switch (requestCode) {
1250            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1251                if (pendingTakePhotoUri.clear()) {
1252                    Log.d(
1253                            Config.LOGTAG,
1254                            "cleared pending photo uri after negative activity result");
1255                }
1256                break;
1257        }
1258    }
1259
1260    @Override
1261    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
1262        super.onActivityResult(requestCode, resultCode, data);
1263        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
1264        if (activity != null && activity.xmppConnectionService != null) {
1265            handleActivityResult(activityResult);
1266        } else {
1267            this.postponedActivityResult.push(activityResult);
1268        }
1269    }
1270
1271    public void unblockConversation(final Blockable conversation) {
1272        activity.xmppConnectionService.sendUnblockRequest(conversation);
1273    }
1274
1275    @Override
1276    public void onAttach(Activity activity) {
1277        super.onAttach(activity);
1278        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
1279        if (activity instanceof ConversationsActivity) {
1280            this.activity = (ConversationsActivity) activity;
1281        } else {
1282            throw new IllegalStateException(
1283                    "Trying to attach fragment to activity that is not the ConversationsActivity");
1284        }
1285    }
1286
1287    @Override
1288    public void onDetach() {
1289        super.onDetach();
1290        this.activity = null; // TODO maybe not a good idea since some callbacks really need it
1291    }
1292
1293    @Override
1294    public void onCreate(Bundle savedInstanceState) {
1295        super.onCreate(savedInstanceState);
1296        setHasOptionsMenu(true);
1297        activity.getOnBackPressedDispatcher().addCallback(this, backPressedLeaveSingleThread);
1298    }
1299
1300    @Override
1301    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
1302        if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.isOnboarding()) return;
1303
1304        menuInflater.inflate(R.menu.fragment_conversation, menu);
1305        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
1306        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
1307        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
1308        final MenuItem menuMute = menu.findItem(R.id.action_mute);
1309        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
1310        final MenuItem menuCall = menu.findItem(R.id.action_call);
1311        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
1312        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
1313        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
1314
1315        if (conversation != null) {
1316            if (conversation.getMode() == Conversation.MODE_MULTI) {
1317                menuContactDetails.setVisible(false);
1318                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
1319                menuMucDetails.setTitle(
1320                        conversation.getMucOptions().isPrivateAndNonAnonymous()
1321                                ? R.string.action_muc_details
1322                                : R.string.channel_details);
1323                menuCall.setVisible(false);
1324                menuOngoingCall.setVisible(false);
1325            } else {
1326                final XmppConnectionService service =
1327                        activity == null ? null : activity.xmppConnectionService;
1328                final Optional<OngoingRtpSession> ongoingRtpSession =
1329                        service == null
1330                                ? Optional.absent()
1331                                : service.getJingleConnectionManager()
1332                                        .getOngoingRtpConnection(conversation.getContact());
1333                if (ongoingRtpSession.isPresent()) {
1334                    menuOngoingCall.setVisible(true);
1335                    menuCall.setVisible(false);
1336                } else {
1337                    menuOngoingCall.setVisible(false);
1338                    final RtpCapability.Capability rtpCapability =
1339                            RtpCapability.check(conversation.getContact());
1340                    final boolean cameraAvailable =
1341                            activity != null && activity.isCameraFeatureAvailable();
1342                    menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
1343                    menuVideoCall.setVisible(
1344                            rtpCapability == RtpCapability.Capability.VIDEO && cameraAvailable);
1345                }
1346                menuContactDetails.setVisible(!this.conversation.withSelf());
1347                menuMucDetails.setVisible(false);
1348                menuInviteContact.setVisible(
1349                        service != null
1350                                && service.findConferenceServer(conversation.getAccount()) != null);
1351            }
1352            if (conversation.isMuted()) {
1353                menuMute.setVisible(false);
1354            } else {
1355                menuUnmute.setVisible(false);
1356            }
1357            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1358            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1359            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1360                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1361            } else {
1362                menuTogglePinned.setTitle(R.string.add_to_favorites);
1363            }
1364        }
1365        super.onCreateOptionsMenu(menu, menuInflater);
1366    }
1367
1368    @Override
1369    public View onCreateView(
1370            final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1371        this.binding =
1372                DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1373        binding.getRoot().setOnClickListener(null); // TODO why the fuck did we do this?
1374
1375        binding.textinput.addTextChangedListener(
1376                new StylingHelper.MessageEditorStyler(binding.textinput));
1377
1378        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1379        binding.textinput.setRichContentListener(new String[] {"image/*"}, mEditorContentListener);
1380        DisplayMetrics displayMetrics = new DisplayMetrics();
1381        activity.getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
1382        if (displayMetrics.heightPixels > 0) binding.textinput.setMaxHeight(displayMetrics.heightPixels / 4);
1383
1384        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1385        binding.contextPreviewCancel.setOnClickListener((v) -> {
1386            setThread(null);
1387            conversation.setUserSelectedThread(false);
1388            setupReply(null);
1389        });
1390        binding.requestVoice.setOnClickListener((v) -> {
1391            activity.xmppConnectionService.requestVoice(conversation.getAccount(), conversation.getJid());
1392            binding.requestVoice.setVisibility(View.GONE);
1393        });
1394
1395        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1396        binding.messagesView.setOnScrollListener(mOnScrollListener);
1397        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1398        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1399        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1400        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1401        messageListAdapter.setOnContactPictureClicked(this);
1402        messageListAdapter.setOnContactPictureLongClicked(this);
1403        messageListAdapter.setOnInlineImageLongClicked(this);
1404        messageListAdapter.setConversationFragment(this);
1405        binding.messagesView.setAdapter(messageListAdapter);
1406
1407        registerForContextMenu(binding.messagesView);
1408        registerForContextMenu(binding.textSendButton);
1409
1410        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1411            this.binding.textinput.setCustomInsertionActionModeCallback(
1412                    new EditMessageActionModeCallback(this.binding.textinput));
1413        }
1414
1415        messageListAdapter.setOnMessageBoxClicked(message -> {
1416            if (message.isPrivateMessage()) privateMessageWith(message.getCounterpart());
1417            setThread(message.getThread());
1418            conversation.setUserSelectedThread(true);
1419        });
1420
1421        messageListAdapter.setOnMessageBoxSwiped(message -> {
1422            quoteMessage(message);
1423        });
1424
1425        binding.threadIdenticonLayout.setOnClickListener(v -> {
1426            boolean wasLocked = conversation.getLockThread();
1427            conversation.setLockThread(false);
1428            backPressedLeaveSingleThread.setEnabled(false);
1429            if (wasLocked) {
1430                setThread(null);
1431                conversation.setUserSelectedThread(false);
1432                refresh();
1433                updateThreadFromLastMessage();
1434            } else {
1435                newThread();
1436                conversation.setUserSelectedThread(true);
1437                newThreadTutorialToast("Switched to new thread");
1438            }
1439        });
1440
1441        binding.threadIdenticonLayout.setOnLongClickListener(v -> {
1442            boolean wasLocked = conversation.getLockThread();
1443            conversation.setLockThread(false);
1444            backPressedLeaveSingleThread.setEnabled(false);
1445            setThread(null);
1446            conversation.setUserSelectedThread(true);
1447            if (wasLocked) refresh();
1448            newThreadTutorialToast("Cleared thread");
1449            return true;
1450        });
1451
1452        final Pattern lastColonPattern = Pattern.compile("(?<!\\w):");
1453        emojiSearchBinding = DataBindingUtil.inflate(inflater, R.layout.emoji_search, null, false);
1454        emojiSearchBinding.emoji.setOnItemClickListener((parent, view, position, id) -> {
1455            EmojiSearch.EmojiSearchAdapter adapter = ((EmojiSearch.EmojiSearchAdapter) emojiSearchBinding.emoji.getAdapter());
1456            Editable toInsert = adapter.getItem(position).toInsert();
1457            toInsert.append(" ");
1458            Editable s = binding.textinput.getText();
1459
1460            Matcher lastColonMatcher = lastColonPattern.matcher(s);
1461            int lastColon = -1;
1462            while(lastColonMatcher.find()) lastColon = lastColonMatcher.end();
1463            if (lastColon > 0) s.replace(lastColon - 1, s.length(), toInsert, 0, toInsert.length());
1464        });
1465        setupEmojiSearch();
1466        int popupHeight = (int) displayMetrics.density * 200;
1467        emojiPopup = new PopupWindow(emojiSearchBinding.getRoot(), WindowManager.LayoutParams.MATCH_PARENT, Math.min(popupHeight, displayMetrics.heightPixels > 0 ? displayMetrics.heightPixels / 5 : popupHeight));
1468        Handler emojiDebounce = new Handler(Looper.getMainLooper());
1469        final Pattern notEmojiSearch = Pattern.compile("[^\\w\\(\\)\\+'\\-]");
1470        binding.textinput.addTextChangedListener(new TextWatcher() {
1471            @Override
1472            public void afterTextChanged(Editable s) {
1473                emojiDebounce.removeCallbacksAndMessages(null);
1474                emojiDebounce.postDelayed(() -> {
1475                    Matcher lastColonMatcher = lastColonPattern.matcher(s);
1476                    int lastColon = -1;
1477                    while(lastColonMatcher.find()) lastColon = lastColonMatcher.end();
1478                    if (lastColon < 0) {
1479                        emojiPopup.dismiss();
1480                        return;
1481                    }
1482                    final String q = s.toString().substring(lastColon);
1483                    if (notEmojiSearch.matcher(q).find()) {
1484                        emojiPopup.dismiss();
1485                    } else {
1486                        EmojiSearch.EmojiSearchAdapter adapter = ((EmojiSearch.EmojiSearchAdapter) emojiSearchBinding.emoji.getAdapter());
1487                        if (adapter != null) {
1488                            adapter.search(q);
1489                            emojiPopup.showAsDropDown(binding.textinput);
1490                        }
1491                    }
1492                }, 400L);
1493            }
1494
1495            @Override
1496            public void beforeTextChanged(CharSequence s, int start, int count, int after) { }
1497
1498            @Override
1499            public void onTextChanged(CharSequence s, int start, int count, int after) { }
1500        });
1501
1502        return binding.getRoot();
1503    }
1504
1505    protected void setupEmojiSearch() {
1506        if (activity != null && activity.xmppConnectionService != null) {
1507            if (!activity.xmppConnectionService.getBooleanPreference("message_autocomplete", R.bool.message_autocomplete)) {
1508                emojiSearch = null;
1509                if (emojiSearchBinding != null) emojiSearchBinding.emoji.setAdapter(null);
1510                return;
1511            }
1512            if (emojiSearch == null) {
1513                emojiSearch = activity.xmppConnectionService.emojiSearch();
1514            }
1515        }
1516        if (emojiSearch == null || emojiSearchBinding == null) return;
1517
1518        emojiSearchBinding.emoji.setAdapter(emojiSearch.makeAdapter(activity));
1519    }
1520
1521    protected void newThreadTutorialToast(String s) {
1522        if (activity == null) return;
1523        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
1524        final int tutorialCount = p.getInt("thread_tutorial", 0);
1525        if (tutorialCount < 5) {
1526            Toast.makeText(activity, s, Toast.LENGTH_SHORT).show();
1527            p.edit().putInt("thread_tutorial", tutorialCount + 1).apply();
1528        }
1529    }
1530
1531    @Override
1532    public void onDestroyView() {
1533        super.onDestroyView();
1534        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1535        messageListAdapter.setOnContactPictureClicked(null);
1536        messageListAdapter.setOnContactPictureLongClicked(null);
1537        messageListAdapter.setOnInlineImageLongClicked(null);
1538        messageListAdapter.setConversationFragment(null);
1539        binding.conversationViewPager.setAdapter(null);
1540        if (conversation != null) conversation.setupViewPager(null, null, false, null);
1541    }
1542
1543    public void quoteText(String text) {
1544        if (binding.textinput.isEnabled()) {
1545            binding.textinput.insertAsQuote(text);
1546            binding.textinput.requestFocus();
1547            InputMethodManager inputMethodManager =
1548                    (InputMethodManager)
1549                            getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1550            if (inputMethodManager != null) {
1551                inputMethodManager.showSoftInput(
1552                        binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1553            }
1554        }
1555    }
1556
1557    private void quoteMessage(Message message) {
1558        if (message.isPrivateMessage()) privateMessageWith(message.getCounterpart());
1559        setThread(message.getThread());
1560        conversation.setUserSelectedThread(true);
1561        if (!forkNullThread(message)) newThread();
1562        setupReply(message);
1563    }
1564
1565    private boolean forkNullThread(Message message) {
1566        if (message.getThread() != null || conversation.getMode() != Conversation.MODE_MULTI) return true;
1567        for (final Message m : conversation.findReplies(message.getServerMsgId())) {
1568            final Element thread = m.getThread();
1569            if (thread != null) {
1570                setThread(thread);
1571                return true;
1572            }
1573        }
1574
1575        return false;
1576    }
1577
1578    private void setupReply(Message message) {
1579        conversation.setReplyTo(message);
1580        if (message == null) {
1581            binding.contextPreview.setVisibility(View.GONE);
1582            binding.textsend.setBackgroundResource(R.drawable.textsend);
1583            return;
1584        }
1585
1586        SpannableStringBuilder body = message.getSpannableBody(null, null);
1587        if (message.isFileOrImage() || message.isOOb()) body.append(" 🖼️");
1588        messageListAdapter.handleTextQuotes(body, activity.isDarkTheme());
1589        binding.contextPreviewText.setText(body);
1590        binding.contextPreview.setVisibility(View.VISIBLE);
1591        binding.textsend.setBackgroundColor(StyledAttributes.getColor(activity, R.attr.color_background_primary));
1592    }
1593
1594    private void setThread(Element thread) {
1595        this.conversation.setThread(thread);
1596        binding.threadIdenticon.setAlpha(0f);
1597        binding.threadIdenticonLock.setVisibility(this.conversation.getLockThread() ? View.VISIBLE : View.GONE);
1598        if (thread != null) {
1599            final String threadId = thread.getContent();
1600            if (threadId != null) {
1601                binding.threadIdenticon.setAlpha(1f);
1602                binding.threadIdenticon.setColor(UIHelper.getColorForName(threadId));
1603                binding.threadIdenticon.setHash(UIHelper.identiconHash(threadId));
1604            }
1605        }
1606        updateSendButton();
1607    }
1608
1609    @Override
1610    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1611        // This should cancel any remaining click events that would otherwise trigger links
1612        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1613
1614        if (v == binding.textSendButton) {
1615            super.onCreateContextMenu(menu, v, menuInfo);
1616            try {
1617                java.lang.reflect.Method m = menu.getClass().getSuperclass().getDeclaredMethod("setOptionalIconsVisible", Boolean.TYPE);
1618                m.setAccessible(true);
1619                m.invoke(menu, true);
1620            } catch (Exception e) {
1621                e.printStackTrace();
1622            }
1623            Menu tmpMenu = new PopupMenu(activity, null).getMenu();
1624            activity.getMenuInflater().inflate(R.menu.fragment_conversation, tmpMenu);
1625            MenuItem attachMenu = tmpMenu.findItem(R.id.action_attach_file);
1626            for (int i = 0; i < attachMenu.getSubMenu().size(); i++) {
1627                MenuItem item = attachMenu.getSubMenu().getItem(i);
1628                MenuItem newItem = menu.add(item.getGroupId(), item.getItemId(), item.getOrder(), item.getTitle());
1629                newItem.setIcon(item.getIcon());
1630            }
1631            return;
1632        }
1633
1634        synchronized (this.messageList) {
1635            super.onCreateContextMenu(menu, v, menuInfo);
1636            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1637            this.selectedMessage = this.messageList.get(acmi.position);
1638            populateContextMenu(menu);
1639        }
1640    }
1641
1642    private void populateContextMenu(ContextMenu menu) {
1643        final Message m = this.selectedMessage;
1644        final Transferable t = m.getTransferable();
1645        Message relevantForCorrection = m;
1646        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1647            relevantForCorrection = relevantForCorrection.next();
1648        }
1649        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1650
1651            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE
1652                    || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1653                return;
1654            }
1655
1656            if (m.getStatus() == Message.STATUS_RECEIVED
1657                    && t != null
1658                    && (t.getStatus() == Transferable.STATUS_CANCELLED
1659                            || t.getStatus() == Transferable.STATUS_FAILED)) {
1660                return;
1661            }
1662
1663            final boolean deleted = m.isDeleted();
1664            final boolean encrypted =
1665                    m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1666                            || m.getEncryption() == Message.ENCRYPTION_PGP;
1667            final boolean receiving =
1668                    m.getStatus() == Message.STATUS_RECEIVED
1669                            && (t instanceof JingleFileTransferConnection
1670                                    || t instanceof HttpDownloadConnection);
1671            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1672            final MenuItem reportAndBlock = menu.findItem(R.id.action_report_and_block);
1673            MenuItem openWith = menu.findItem(R.id.open_with);
1674            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1675            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1676            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1677            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1678            MenuItem retractMessage = menu.findItem(R.id.retract_message);
1679            MenuItem moderateMessage = menu.findItem(R.id.moderate_message);
1680            MenuItem onlyThisThread = menu.findItem(R.id.only_this_thread);
1681            MenuItem shareWith = menu.findItem(R.id.share_with);
1682            MenuItem sendAgain = menu.findItem(R.id.send_again);
1683            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1684            MenuItem saveAsSticker = menu.findItem(R.id.save_as_sticker);
1685            MenuItem downloadFile = menu.findItem(R.id.download_file);
1686            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1687            MenuItem blockMedia = menu.findItem(R.id.block_media);
1688            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1689            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1690            onlyThisThread.setVisible(!conversation.getLockThread() && m.getThread() != null);
1691            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1692            final boolean showError =
1693                    m.getStatus() == Message.STATUS_SEND_FAILED
1694                            && m.getErrorMessage() != null
1695                            && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1696            final Conversational conversational = m.getConversation();
1697            if (m.getStatus() == Message.STATUS_RECEIVED && conversational instanceof Conversation c) {
1698                final XmppConnection connection = c.getAccount().getXmppConnection();
1699                if (c.isWithStranger()
1700                        && m.getServerMsgId() != null
1701                        && !c.isBlocked()
1702                        && connection != null
1703                        && connection.getFeatures().spamReporting()) {
1704                    reportAndBlock.setVisible(true);
1705                }
1706            }
1707            if (!encrypted && !m.getBody().equals("")) {
1708                copyMessage.setVisible(true);
1709            }
1710            quoteMessage.setVisible(!encrypted && !showError);
1711            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1712                retryDecryption.setVisible(true);
1713            }
1714            if (!showError
1715                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1716                    && !m.isGeoUri()
1717                    && relevantForCorrection.isLastCorrectableMessage()
1718                    && m.getConversation() instanceof Conversation) {
1719                correctMessage.setVisible(true);
1720                if (!relevantForCorrection.getBody().equals("") && !relevantForCorrection.getBody().equals(" ")) retractMessage.setVisible(true);
1721            }
1722            if (relevantForCorrection.getReactions() != null) {
1723                correctMessage.setVisible(false);
1724                retractMessage.setVisible(true);
1725            }
1726            if (conversation.getMode() == Conversation.MODE_MULTI && m.getServerMsgId() != null && m.getModerated() == null && conversation.getMucOptions().getSelf().getRole().ranks(MucOptions.Role.MODERATOR) && conversation.getMucOptions().hasFeature("urn:xmpp:message-moderate:0")) {
1727                moderateMessage.setVisible(true);
1728            }
1729            if ((m.isFileOrImage() && !deleted && !receiving)
1730                    || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())
1731                            && !unInitiatedButKnownSize
1732                            && t == null) {
1733                shareWith.setVisible(true);
1734            }
1735            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1736                sendAgain.setVisible(true);
1737            }
1738            if (m.hasFileOnRemoteHost()
1739                    || m.isGeoUri()
1740                    || m.treatAsDownloadable()
1741                    || unInitiatedButKnownSize
1742                    || t instanceof HttpDownloadConnection) {
1743                copyUrl.setVisible(true);
1744            }
1745            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1746                downloadFile.setVisible(true);
1747                downloadFile.setTitle(
1748                        activity.getString(
1749                                R.string.download_x_file,
1750                                UIHelper.getFileDescriptionString(activity, m)));
1751            }
1752            final boolean waitingOfferedSending =
1753                    m.getStatus() == Message.STATUS_WAITING
1754                            || m.getStatus() == Message.STATUS_UNSEND
1755                            || m.getStatus() == Message.STATUS_OFFERED;
1756            final boolean cancelable =
1757                    (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1758            if (cancelable) {
1759                cancelTransmission.setVisible(true);
1760            }
1761            if (m.isFileOrImage() && !deleted && !cancelable) {
1762                final String path = m.getRelativeFilePath();
1763                if (path == null
1764                        || !path.startsWith("/")
1765                        || FileBackend.inConversationsDirectory(requireActivity(), path)) {
1766                    saveAsSticker.setVisible(true);
1767                    blockMedia.setVisible(true);
1768                    deleteFile.setVisible(true);
1769                    deleteFile.setTitle(
1770                            activity.getString(
1771                                    R.string.delete_x_file,
1772                                    UIHelper.getFileDescriptionString(activity, m)));
1773                }
1774            }
1775
1776            if (m.getFileParams() != null && !m.getFileParams().getThumbnails().isEmpty()) {
1777                // We might be showing a thumbnail worth blocking
1778                blockMedia.setVisible(true);
1779            }
1780            if (showError) {
1781                showErrorMessage.setVisible(true);
1782            }
1783            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1784            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m))
1785                    || (mime != null && mime.startsWith("audio/"))) {
1786                openWith.setVisible(true);
1787            }
1788        }
1789    }
1790
1791    @Override
1792    public boolean onContextItemSelected(MenuItem item) {
1793        switch (item.getItemId()) {
1794            case R.id.share_with:
1795                ShareUtil.share(activity, selectedMessage);
1796                return true;
1797            case R.id.correct_message:
1798                correctMessage(selectedMessage);
1799                return true;
1800            case R.id.retract_message:
1801                new AlertDialog.Builder(activity)
1802                    .setTitle(R.string.retract_message)
1803                    .setMessage("Do you really want to retract this message?")
1804                    .setPositiveButton(R.string.yes, (dialog, whichButton) -> {
1805                        Message message = selectedMessage;
1806                        while (message.mergeable(message.next())) {
1807                            message = message.next();
1808                        }
1809                        Element reactions = message.getReactions();
1810                        if (reactions != null) {
1811                            final Message previousReaction = conversation.findMessageReactingTo(reactions.getAttribute("id"), null);
1812                            if (previousReaction != null) reactions = previousReaction.getReactions();
1813                            for (Element el : reactions.getChildren()) {
1814                                if (message.getRawBody().endsWith(el.getContent())) {
1815                                    reactions.removeChild(el);
1816                                }
1817                            }
1818                            message.setReactions(reactions);
1819                            if (previousReaction != null) {
1820                                previousReaction.setReactions(reactions);
1821                                activity.xmppConnectionService.updateMessage(previousReaction);
1822                            }
1823                        }
1824                        message.setBody(" ");
1825                        message.setSubject(null);
1826                        message.putEdited(message.getUuid(), message.getServerMsgId());
1827                        message.setServerMsgId(null);
1828                        message.setUuid(UUID.randomUUID().toString());
1829                        sendMessage(message);
1830                    })
1831                    .setNegativeButton(R.string.no, null).show();
1832                return true;
1833            case R.id.moderate_message:
1834                activity.quickEdit("Spam", (reason) -> {
1835                    Message message = selectedMessage;
1836                    do {
1837                        activity.xmppConnectionService.moderateMessage(conversation.getAccount(), message, reason);
1838                        message = message.mergeable(message.next()) ? message.next() : null;
1839                    } while (message != null);
1840                    return null;
1841                }, R.string.moderate_reason, false, false, true);
1842                return true;
1843            case R.id.copy_message:
1844                ShareUtil.copyToClipboard(activity, selectedMessage);
1845                return true;
1846            case R.id.quote_message:
1847                quoteMessage(selectedMessage);
1848                return true;
1849            case R.id.send_again:
1850                resendMessage(selectedMessage);
1851                return true;
1852            case R.id.copy_url:
1853                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1854                return true;
1855            case R.id.save_as_sticker:
1856                saveAsSticker(selectedMessage);
1857                return true;
1858            case R.id.download_file:
1859                startDownloadable(selectedMessage);
1860                return true;
1861            case R.id.cancel_transmission:
1862                cancelTransmission(selectedMessage);
1863                return true;
1864            case R.id.retry_decryption:
1865                retryDecryption(selectedMessage);
1866                return true;
1867            case R.id.block_media:
1868                new AlertDialog.Builder(activity)
1869                    .setTitle(R.string.block_media)
1870                    .setMessage("Do you really want to block this media in all messages?")
1871                    .setPositiveButton(R.string.yes, (dialog, whichButton) -> {
1872                        List<Element> thumbs = selectedMessage.getFileParams() != null ? selectedMessage.getFileParams().getThumbnails() : null;
1873                        if (thumbs != null && !thumbs.isEmpty()) {
1874                            for (Element thumb : thumbs) {
1875                                Uri uri = Uri.parse(thumb.getAttribute("uri"));
1876                                if (uri.getScheme().equals("cid")) {
1877                                    Cid cid = BobTransfer.cid(uri);
1878                                    if (cid == null) continue;
1879                                    DownloadableFile f = activity.xmppConnectionService.getFileForCid(cid);
1880                                    activity.xmppConnectionService.blockMedia(f);
1881                                    activity.xmppConnectionService.evictPreview(f);
1882                                    f.delete();
1883                                }
1884                            }
1885                        }
1886                        File f = activity.xmppConnectionService.getFileBackend().getFile(selectedMessage);
1887                        activity.xmppConnectionService.blockMedia(f);
1888                        activity.xmppConnectionService.getFileBackend().deleteFile(selectedMessage);
1889                        activity.xmppConnectionService.evictPreview(f);
1890                        activity.xmppConnectionService.updateMessage(selectedMessage, false);
1891                        activity.onConversationsListItemUpdated();
1892                        refresh();
1893                    })
1894                    .setNegativeButton(R.string.no, null).show();
1895                return true;
1896            case R.id.delete_file:
1897                deleteFile(selectedMessage);
1898                return true;
1899            case R.id.show_error_message:
1900                showErrorMessage(selectedMessage);
1901                return true;
1902            case R.id.open_with:
1903                openWith(selectedMessage);
1904                return true;
1905            case R.id.only_this_thread:
1906                conversation.setLockThread(true);
1907                backPressedLeaveSingleThread.setEnabled(true);
1908                setThread(selectedMessage.getThread());
1909                refresh();
1910                return true;
1911            case R.id.action_report_and_block:
1912                reportMessage(selectedMessage);
1913                return true;
1914            default:
1915                return onOptionsItemSelected(item);
1916        }
1917    }
1918
1919    @Override
1920    public boolean onOptionsItemSelected(final MenuItem item) {
1921        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1922            return false;
1923        } else if (conversation == null) {
1924            return super.onOptionsItemSelected(item);
1925        }
1926        switch (item.getItemId()) {
1927            case R.id.encryption_choice_axolotl:
1928            case R.id.encryption_choice_pgp:
1929            case R.id.encryption_choice_none:
1930                handleEncryptionSelection(item);
1931                break;
1932            case R.id.attach_choose_picture:
1933            case R.id.attach_take_picture:
1934            case R.id.attach_record_video:
1935            case R.id.attach_choose_file:
1936            case R.id.attach_record_voice:
1937            case R.id.attach_location:
1938                handleAttachmentSelection(item);
1939                break;
1940            case R.id.attach_subject:
1941                binding.textinputSubject.setVisibility(binding.textinputSubject.getVisibility() == View.GONE ? View.VISIBLE : View.GONE);
1942                break;
1943            case R.id.action_search:
1944                startSearch();
1945                break;
1946            case R.id.action_archive:
1947                activity.xmppConnectionService.archiveConversation(conversation);
1948                break;
1949            case R.id.action_contact_details:
1950                activity.switchToContactDetails(conversation.getContact());
1951                break;
1952            case R.id.action_muc_details:
1953                ConferenceDetailsActivity.open(activity, conversation);
1954                break;
1955            case R.id.action_invite:
1956                startActivityForResult(
1957                        ChooseContactActivity.create(activity, conversation),
1958                        REQUEST_INVITE_TO_CONVERSATION);
1959                break;
1960            case R.id.action_clear_history:
1961                clearHistoryDialog(conversation);
1962                break;
1963            case R.id.action_mute:
1964                muteConversationDialog(conversation);
1965                break;
1966            case R.id.action_unmute:
1967                unMuteConversation(conversation);
1968                break;
1969            case R.id.action_block:
1970            case R.id.action_unblock:
1971                final Activity activity = getActivity();
1972                if (activity instanceof XmppActivity) {
1973                    BlockContactDialog.show((XmppActivity) activity, conversation);
1974                }
1975                break;
1976            case R.id.action_audio_call:
1977                checkPermissionAndTriggerAudioCall();
1978                break;
1979            case R.id.action_video_call:
1980                checkPermissionAndTriggerVideoCall();
1981                break;
1982            case R.id.action_ongoing_call:
1983                returnToOngoingCall();
1984                break;
1985            case R.id.action_toggle_pinned:
1986                togglePinned();
1987                break;
1988            case R.id.action_add_shortcut:
1989                addShortcut();
1990                break;
1991            case R.id.action_refresh_feature_discovery:
1992                refreshFeatureDiscovery();
1993                break;
1994            default:
1995                break;
1996        }
1997        return super.onOptionsItemSelected(item);
1998    }
1999
2000    public boolean onBackPressed() {
2001        boolean wasLocked = conversation.getLockThread();
2002        conversation.setLockThread(false);
2003        backPressedLeaveSingleThread.setEnabled(false);
2004        if (wasLocked) {
2005            setThread(null);
2006            conversation.setUserSelectedThread(false);
2007            refresh();
2008            updateThreadFromLastMessage();
2009            return true;
2010        }
2011        return false;
2012    }
2013
2014    private void startSearch() {
2015        final Intent intent = new Intent(getActivity(), SearchActivity.class);
2016        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
2017        startActivity(intent);
2018    }
2019
2020    private void returnToOngoingCall() {
2021        final Optional<OngoingRtpSession> ongoingRtpSession =
2022                activity.xmppConnectionService
2023                        .getJingleConnectionManager()
2024                        .getOngoingRtpConnection(conversation.getContact());
2025        if (ongoingRtpSession.isPresent()) {
2026            final OngoingRtpSession id = ongoingRtpSession.get();
2027            final Intent intent = new Intent(activity, RtpSessionActivity.class);
2028            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
2029            intent.putExtra(
2030                    RtpSessionActivity.EXTRA_ACCOUNT,
2031                    id.getAccount().getJid().asBareJid().toEscapedString());
2032            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
2033            if (id instanceof AbstractJingleConnection.Id) {
2034                intent.setAction(Intent.ACTION_VIEW);
2035                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
2036            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
2037                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
2038                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
2039                } else {
2040                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
2041                }
2042            }
2043            activity.startActivity(intent);
2044        }
2045    }
2046
2047    private void refreshFeatureDiscovery() {
2048        Set<Map.Entry<String, Presence>> presences = conversation.getContact().getPresences().getPresencesMap().entrySet();
2049        if (presences.isEmpty()) {
2050            presences = new HashSet<>();
2051            presences.add(new AbstractMap.SimpleEntry("", null));
2052        }
2053        for (Map.Entry<String, Presence> entry : presences) {
2054            Jid jid = conversation.getContact().getJid();
2055            if (!entry.getKey().equals("")) jid = jid.withResource(entry.getKey());
2056            activity.xmppConnectionService.fetchCaps(conversation.getAccount(), jid, entry.getValue(), () -> {
2057                if (activity == null) return;
2058                activity.runOnUiThread(() -> {
2059                    refresh();
2060                    refreshCommands(true);
2061                });
2062            });
2063        }
2064    }
2065
2066    private void addShortcut() {
2067        ShortcutInfoCompat info;
2068        if (conversation.getMode() == Conversation.MODE_MULTI) {
2069            info = activity.xmppConnectionService.getShortcutService().getShortcutInfoCompat(conversation.getMucOptions());
2070        } else {
2071            info = activity.xmppConnectionService.getShortcutService().getShortcutInfoCompat(conversation.getContact());
2072        }
2073        ShortcutManagerCompat.requestPinShortcut(activity, info, null);
2074    }
2075
2076    private void togglePinned() {
2077        final boolean pinned =
2078                conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
2079        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
2080        activity.xmppConnectionService.updateConversation(conversation);
2081        activity.invalidateOptionsMenu();
2082    }
2083
2084    private void checkPermissionAndTriggerAudioCall() {
2085        if (activity.mUseTor || conversation.getAccount().isOnion()) {
2086            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
2087            return;
2088        }
2089        final List<String> permissions;
2090        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
2091            permissions =
2092                    Arrays.asList(
2093                            Manifest.permission.RECORD_AUDIO,
2094                            Manifest.permission.BLUETOOTH_CONNECT);
2095        } else {
2096            permissions = Collections.singletonList(Manifest.permission.RECORD_AUDIO);
2097        }
2098        if (hasPermissions(REQUEST_START_AUDIO_CALL, permissions)) {
2099            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
2100        }
2101    }
2102
2103    private void checkPermissionAndTriggerVideoCall() {
2104        if (activity.mUseTor || conversation.getAccount().isOnion()) {
2105            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
2106            return;
2107        }
2108        final List<String> permissions;
2109        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
2110            permissions =
2111                    Arrays.asList(
2112                            Manifest.permission.RECORD_AUDIO,
2113                            Manifest.permission.CAMERA,
2114                            Manifest.permission.BLUETOOTH_CONNECT);
2115        } else {
2116            permissions =
2117                    Arrays.asList(Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA);
2118        }
2119        if (hasPermissions(REQUEST_START_VIDEO_CALL, permissions)) {
2120            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
2121        }
2122    }
2123
2124    private void triggerRtpSession(final String action) {
2125        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy() != null) {
2126            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG)
2127                    .show();
2128            return;
2129        }
2130        final Account account = conversation.getAccount();
2131        if (account.setOption(Account.OPTION_SOFT_DISABLED, false)) {
2132            activity.xmppConnectionService.updateAccount(account);
2133        }
2134        final Contact contact = conversation.getContact();
2135        if (RtpCapability.jmiSupport(contact)) {
2136            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
2137        } else {
2138            final RtpCapability.Capability capability;
2139            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
2140                capability = RtpCapability.Capability.VIDEO;
2141            } else {
2142                capability = RtpCapability.Capability.AUDIO;
2143            }
2144            PresenceSelector.selectFullJidForDirectRtpConnection(
2145                    activity,
2146                    contact,
2147                    capability,
2148                    fullJid -> {
2149                        triggerRtpSession(contact.getAccount(), fullJid, action);
2150                    });
2151        }
2152    }
2153
2154    private void triggerRtpSession(final Account account, final Jid with, final String action) {
2155        final Intent intent = new Intent(activity, RtpSessionActivity.class);
2156        intent.setAction(action);
2157        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
2158        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
2159        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2160        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
2161        startActivity(intent);
2162    }
2163
2164    private void handleAttachmentSelection(MenuItem item) {
2165        switch (item.getItemId()) {
2166            case R.id.attach_choose_picture:
2167                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
2168                break;
2169            case R.id.attach_take_picture:
2170                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
2171                break;
2172            case R.id.attach_record_video:
2173                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
2174                break;
2175            case R.id.attach_choose_file:
2176                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
2177                break;
2178            case R.id.attach_record_voice:
2179                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
2180                break;
2181            case R.id.attach_location:
2182                attachFile(ATTACHMENT_CHOICE_LOCATION);
2183                break;
2184        }
2185    }
2186
2187    private void handleEncryptionSelection(MenuItem item) {
2188        if (conversation == null) {
2189            return;
2190        }
2191        final boolean updated;
2192        switch (item.getItemId()) {
2193            case R.id.encryption_choice_none:
2194                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2195                item.setChecked(true);
2196                break;
2197            case R.id.encryption_choice_pgp:
2198                if (activity.hasPgp()) {
2199                    if (conversation.getAccount().getPgpSignature() != null) {
2200                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
2201                        item.setChecked(true);
2202                    } else {
2203                        updated = false;
2204                        activity.announcePgp(
2205                                conversation.getAccount(),
2206                                conversation,
2207                                null,
2208                                activity.onOpenPGPKeyPublished);
2209                    }
2210                } else {
2211                    activity.showInstallPgpDialog();
2212                    updated = false;
2213                }
2214                break;
2215            case R.id.encryption_choice_axolotl:
2216                Log.d(
2217                        Config.LOGTAG,
2218                        AxolotlService.getLogprefix(conversation.getAccount())
2219                                + "Enabled axolotl for Contact "
2220                                + conversation.getContact().getJid());
2221                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
2222                item.setChecked(true);
2223                break;
2224            default:
2225                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2226                break;
2227        }
2228        if (updated) {
2229            activity.xmppConnectionService.updateConversation(conversation);
2230        }
2231        updateChatMsgHint();
2232        getActivity().invalidateOptionsMenu();
2233        activity.refreshUi();
2234    }
2235
2236    public void attachFile(final int attachmentChoice) {
2237        attachFile(attachmentChoice, true);
2238    }
2239
2240    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
2241        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
2242            if (!hasPermissions(
2243                    attachmentChoice,
2244                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
2245                    Manifest.permission.RECORD_AUDIO)) {
2246                return;
2247            }
2248        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO
2249                || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
2250            if (!hasPermissions(
2251                    attachmentChoice,
2252                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
2253                    Manifest.permission.CAMERA)) {
2254                return;
2255            }
2256        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
2257            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2258                return;
2259            }
2260        }
2261        if (updateRecentlyUsed) {
2262            storeRecentlyUsedQuickAction(attachmentChoice);
2263        }
2264        final int encryption = conversation.getNextEncryption();
2265        final int mode = conversation.getMode();
2266        if (encryption == Message.ENCRYPTION_PGP) {
2267            if (activity.hasPgp()) {
2268                if (mode == Conversation.MODE_SINGLE
2269                        && conversation.getContact().getPgpKeyId() != 0) {
2270                    activity.xmppConnectionService
2271                            .getPgpEngine()
2272                            .hasKey(
2273                                    conversation.getContact(),
2274                                    new UiCallback<Contact>() {
2275
2276                                        @Override
2277                                        public void userInputRequired(
2278                                                PendingIntent pi, Contact contact) {
2279                                            startPendingIntent(pi, attachmentChoice);
2280                                        }
2281
2282                                        @Override
2283                                        public void success(Contact contact) {
2284                                            invokeAttachFileIntent(attachmentChoice);
2285                                        }
2286
2287                                        @Override
2288                                        public void error(int error, Contact contact) {
2289                                            activity.replaceToast(getString(error));
2290                                        }
2291                                    });
2292                } else if (mode == Conversation.MODE_MULTI
2293                        && conversation.getMucOptions().pgpKeysInUse()) {
2294                    if (!conversation.getMucOptions().everybodyHasKeys()) {
2295                        Toast warning =
2296                                Toast.makeText(
2297                                        getActivity(),
2298                                        R.string.missing_public_keys,
2299                                        Toast.LENGTH_LONG);
2300                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2301                        warning.show();
2302                    }
2303                    invokeAttachFileIntent(attachmentChoice);
2304                } else {
2305                    showNoPGPKeyDialog(
2306                            false,
2307                            (dialog, which) -> {
2308                                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2309                                activity.xmppConnectionService.updateConversation(conversation);
2310                                invokeAttachFileIntent(attachmentChoice);
2311                            });
2312                }
2313            } else {
2314                activity.showInstallPgpDialog();
2315            }
2316        } else {
2317            invokeAttachFileIntent(attachmentChoice);
2318        }
2319    }
2320
2321    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
2322        try {
2323            activity.getPreferences()
2324                    .edit()
2325                    .putString(
2326                            RECENTLY_USED_QUICK_ACTION,
2327                            SendButtonAction.of(attachmentChoice).toString())
2328                    .apply();
2329        } catch (IllegalArgumentException e) {
2330            // just do not save
2331        }
2332    }
2333
2334    @Override
2335    public void onRequestPermissionsResult(
2336            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
2337        final PermissionUtils.PermissionResult permissionResult =
2338                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
2339        if (grantResults.length > 0) {
2340            if (allGranted(permissionResult.grantResults)) {
2341                switch (requestCode) {
2342                    case REQUEST_START_DOWNLOAD:
2343                        if (this.mPendingDownloadableMessage != null) {
2344                            startDownloadable(this.mPendingDownloadableMessage);
2345                        }
2346                        break;
2347                    case REQUEST_ADD_EDITOR_CONTENT:
2348                        if (this.mPendingEditorContent != null) {
2349                            attachEditorContentToConversation(this.mPendingEditorContent);
2350                        }
2351                        break;
2352                    case REQUEST_COMMIT_ATTACHMENTS:
2353                        commitAttachments();
2354                        break;
2355                    case REQUEST_START_AUDIO_CALL:
2356                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
2357                        break;
2358                    case REQUEST_START_VIDEO_CALL:
2359                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
2360                        break;
2361                    default:
2362                        attachFile(requestCode);
2363                        break;
2364                }
2365            } else {
2366                @StringRes int res;
2367                String firstDenied =
2368                        getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
2369                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
2370                    res = R.string.no_microphone_permission;
2371                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
2372                    res = R.string.no_camera_permission;
2373                } else {
2374                    res = R.string.no_storage_permission;
2375                }
2376                Toast.makeText(
2377                                getActivity(),
2378                                getString(res, getString(R.string.app_name)),
2379                                Toast.LENGTH_SHORT)
2380                        .show();
2381            }
2382        }
2383        if (writeGranted(grantResults, permissions)) {
2384            if (activity != null && activity.xmppConnectionService != null) {
2385                activity.xmppConnectionService.getDrawableCache().evictAll();
2386                activity.xmppConnectionService.restartFileObserver();
2387            }
2388            refresh();
2389        }
2390        if (cameraGranted(grantResults, permissions) || audioGranted(grantResults, permissions)) {
2391            XmppConnectionService.toggleForegroundService(activity);
2392        }
2393    }
2394
2395    public void startDownloadable(Message message) {
2396        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2397            this.mPendingDownloadableMessage = message;
2398            return;
2399        }
2400        Transferable transferable = message.getTransferable();
2401        if (transferable != null) {
2402            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
2403                createNewConnection(message);
2404                return;
2405            }
2406            if (!transferable.start()) {
2407                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
2408                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
2409                        .show();
2410            }
2411        } else if (message.treatAsDownloadable()
2412                || message.hasFileOnRemoteHost()
2413                || MessageUtils.unInitiatedButKnownSize(message)) {
2414            createNewConnection(message);
2415        } else {
2416            Log.d(
2417                    Config.LOGTAG,
2418                    message.getConversation().getAccount() + ": unable to start downloadable");
2419        }
2420    }
2421
2422    private void createNewConnection(final Message message) {
2423        if (!activity.xmppConnectionService.hasInternetConnection()) {
2424            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
2425                    .show();
2426            return;
2427        }
2428        if (message.getOob() != null && "cid".equalsIgnoreCase(message.getOob().getScheme())) {
2429            try {
2430                BobTransfer transfer = new BobTransfer.ForMessage(message, activity.xmppConnectionService);
2431                message.setTransferable(transfer);
2432                transfer.start();
2433            } catch (URISyntaxException e) {
2434                Log.d(Config.LOGTAG, "BobTransfer failed to parse URI");
2435            }
2436        } else {
2437            activity.xmppConnectionService
2438                    .getHttpConnectionManager()
2439                    .createNewDownloadConnection(message, true);
2440        }
2441    }
2442
2443    @SuppressLint("InflateParams")
2444    protected void clearHistoryDialog(final Conversation conversation) {
2445        final AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2446        builder.setTitle(getString(R.string.clear_conversation_history));
2447        final View dialogView =
2448                requireActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
2449        final CheckBox endConversationCheckBox =
2450                dialogView.findViewById(R.id.end_conversation_checkbox);
2451        builder.setView(dialogView);
2452        builder.setNegativeButton(getString(R.string.cancel), null);
2453        builder.setPositiveButton(
2454                getString(R.string.confirm),
2455                (dialog, which) -> {
2456                    this.activity.xmppConnectionService.clearConversationHistory(conversation);
2457                    if (endConversationCheckBox.isChecked()) {
2458                        this.activity.xmppConnectionService.archiveConversation(conversation);
2459                        this.activity.onConversationArchived(conversation);
2460                    } else {
2461                        activity.onConversationsListItemUpdated();
2462                        refresh();
2463                    }
2464                });
2465        builder.create().show();
2466    }
2467
2468    protected void muteConversationDialog(final Conversation conversation) {
2469        final AlertDialog.Builder builder = new AlertDialog.Builder(activity);
2470        builder.setTitle(R.string.disable_notifications);
2471        final int[] durations = activity.getResources().getIntArray(R.array.mute_options_durations);
2472        final CharSequence[] labels = new CharSequence[durations.length];
2473        for (int i = 0; i < durations.length; ++i) {
2474            if (durations[i] == -1) {
2475                labels[i] = activity.getString(R.string.until_further_notice);
2476            } else {
2477                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
2478            }
2479        }
2480        builder.setItems(
2481                labels,
2482                (dialog, which) -> {
2483                    final long till;
2484                    if (durations[which] == -1) {
2485                        till = Long.MAX_VALUE;
2486                    } else {
2487                        till = System.currentTimeMillis() + (durations[which] * 1000L);
2488                    }
2489                    conversation.setMutedTill(till);
2490                    activity.xmppConnectionService.updateConversation(conversation);
2491                    activity.onConversationsListItemUpdated();
2492                    refresh();
2493                    activity.invalidateOptionsMenu();
2494                });
2495        builder.create().show();
2496    }
2497
2498    private boolean hasPermissions(int requestCode, List<String> permissions) {
2499        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
2500            final List<String> missingPermissions = new ArrayList<>();
2501            for (String permission : permissions) {
2502                if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU || Config.ONLY_INTERNAL_STORAGE) && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2503                    continue;
2504                }
2505                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
2506                    missingPermissions.add(permission);
2507                }
2508            }
2509            if (missingPermissions.size() == 0) {
2510                return true;
2511            } else {
2512                requestPermissions(
2513                        missingPermissions.toArray(new String[0]),
2514                        requestCode);
2515                return false;
2516            }
2517        } else {
2518            return true;
2519        }
2520    }
2521
2522    private boolean hasPermissions(int requestCode, String... permissions) {
2523        return hasPermissions(requestCode, ImmutableList.copyOf(permissions));
2524    }
2525
2526    public void unMuteConversation(final Conversation conversation) {
2527        conversation.setMutedTill(0);
2528        this.activity.xmppConnectionService.updateConversation(conversation);
2529        this.activity.onConversationsListItemUpdated();
2530        refresh();
2531        this.activity.invalidateOptionsMenu();
2532    }
2533
2534    protected void invokeAttachFileIntent(final int attachmentChoice) {
2535        Intent intent = new Intent();
2536        boolean chooser = false;
2537        switch (attachmentChoice) {
2538            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
2539                intent.setAction(Intent.ACTION_GET_CONTENT);
2540                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2541                intent.setType("image/*");
2542                chooser = true;
2543                break;
2544            case ATTACHMENT_CHOICE_RECORD_VIDEO:
2545                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
2546                break;
2547            case ATTACHMENT_CHOICE_TAKE_PHOTO:
2548                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
2549                pendingTakePhotoUri.push(uri);
2550                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
2551                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
2552                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
2553                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
2554                break;
2555            case ATTACHMENT_CHOICE_CHOOSE_FILE:
2556                chooser = true;
2557                intent.setType("*/*");
2558                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2559                intent.addCategory(Intent.CATEGORY_OPENABLE);
2560                intent.setAction(Intent.ACTION_GET_CONTENT);
2561                break;
2562            case ATTACHMENT_CHOICE_RECORD_VOICE:
2563                intent = new Intent(getActivity(), RecordingActivity.class);
2564                break;
2565            case ATTACHMENT_CHOICE_LOCATION:
2566                intent = GeoHelper.getFetchIntent(activity);
2567                break;
2568        }
2569        final Context context = getActivity();
2570        if (context == null) {
2571            return;
2572        }
2573        try {
2574            if (chooser) {
2575                startActivityForResult(
2576                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
2577                        attachmentChoice);
2578            } else {
2579                startActivityForResult(intent, attachmentChoice);
2580            }
2581        } catch (final ActivityNotFoundException e) {
2582            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
2583        }
2584    }
2585
2586    @Override
2587    public void onResume() {
2588        super.onResume();
2589        binding.messagesView.post(this::fireReadEvent);
2590    }
2591
2592    private void fireReadEvent() {
2593        if (activity != null && this.conversation != null) {
2594            String uuid = getLastVisibleMessageUuid();
2595            if (uuid != null) {
2596                activity.onConversationRead(this.conversation, uuid);
2597            }
2598        }
2599    }
2600
2601    private void newSubThread() {
2602        Element oldThread = conversation.getThread();
2603        Element thread = new Element("thread", "jabber:client");
2604        thread.setContent(UUID.randomUUID().toString());
2605        if (oldThread != null) thread.setAttribute("parent", oldThread.getContent());
2606        setThread(thread);
2607    }
2608
2609    private void newThread() {
2610        Element thread = new Element("thread", "jabber:client");
2611        thread.setContent(UUID.randomUUID().toString());
2612        setThread(thread);
2613    }
2614
2615    private void updateThreadFromLastMessage() {
2616        if (this.conversation != null && !this.conversation.getUserSelectedThread() && TextUtils.isEmpty(binding.textinput.getText())) {
2617            Message message = getLastVisibleMessage();
2618            if (message == null) {
2619                newThread();
2620            } else {
2621                if (conversation.getMode() == Conversation.MODE_MULTI) {
2622                    if (activity == null || activity.xmppConnectionService == null) return;
2623                    if (message.getStatus() < Message.STATUS_SEND) {
2624                        if (!activity.xmppConnectionService.getBooleanPreference("follow_thread_in_channel", R.bool.follow_thread_in_channel)) return;
2625                    }
2626                }
2627
2628                setThread(message.getThread());
2629            }
2630        }
2631    }
2632
2633    private String getLastVisibleMessageUuid() {
2634        Message message =  getLastVisibleMessage();
2635        return message == null ? null : message.getUuid();
2636    }
2637
2638    private Message getLastVisibleMessage() {
2639        if (binding == null) {
2640            return null;
2641        }
2642        synchronized (this.messageList) {
2643            int pos = binding.messagesView.getLastVisiblePosition();
2644            if (pos >= 0) {
2645                Message message = null;
2646                for (int i = pos; i >= 0; --i) {
2647                    try {
2648                        message = (Message) binding.messagesView.getItemAtPosition(i);
2649                    } catch (IndexOutOfBoundsException e) {
2650                        // should not happen if we synchronize properly. however if that fails we
2651                        // just gonna try item -1
2652                        continue;
2653                    }
2654                    if (message.getType() != Message.TYPE_STATUS) {
2655                        break;
2656                    }
2657                }
2658                if (message != null) {
2659                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
2660                        message = message.next();
2661                    }
2662                    return message;
2663                }
2664            }
2665        }
2666        return null;
2667    }
2668
2669    private void openWith(final Message message) {
2670        if (message.isGeoUri()) {
2671            GeoHelper.view(getActivity(), message);
2672        } else {
2673            final DownloadableFile file =
2674                    activity.xmppConnectionService.getFileBackend().getFile(message);
2675            ViewUtil.view(activity, file);
2676        }
2677    }
2678
2679    private void reportMessage(final Message message) {
2680        BlockContactDialog.show(activity, conversation.getContact(), message.getServerMsgId());
2681    }
2682
2683    private void showErrorMessage(final Message message) {
2684        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2685        builder.setTitle(R.string.error_message);
2686        final String errorMessage = message.getErrorMessage();
2687        final String[] errorMessageParts =
2688                errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
2689        final String displayError;
2690        if (errorMessageParts.length == 2) {
2691            displayError = errorMessageParts[1];
2692        } else {
2693            displayError = errorMessage;
2694        }
2695        builder.setMessage(displayError);
2696        builder.setNegativeButton(
2697                R.string.copy_to_clipboard,
2698                (dialog, which) -> {
2699                    activity.copyTextToClipboard(displayError, R.string.error_message);
2700                    Toast.makeText(
2701                                    activity,
2702                                    R.string.error_message_copied_to_clipboard,
2703                                    Toast.LENGTH_SHORT)
2704                            .show();
2705                });
2706        builder.setPositiveButton(R.string.confirm, null);
2707        builder.create().show();
2708    }
2709
2710    public boolean onInlineImageLongClicked(Cid cid) {
2711        DownloadableFile f = activity.xmppConnectionService.getFileForCid(cid);
2712        if (f == null) return false;
2713
2714        saveAsSticker(f, null);
2715        return true;
2716    }
2717
2718    private void saveAsSticker(final Message m) {
2719        String existingName = m.getFileParams() != null && m.getFileParams().getName() != null ? m.getFileParams().getName() : "";
2720        existingName = existingName.lastIndexOf(".") == -1 ? existingName : existingName.substring(0, existingName.lastIndexOf("."));
2721        saveAsSticker(activity.xmppConnectionService.getFileBackend().getFile(m), existingName);
2722    }
2723
2724    private void saveAsSticker(final File file, final String name) {
2725        savingAsSticker = file;
2726
2727        Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
2728        intent.addCategory(Intent.CATEGORY_OPENABLE);
2729        intent.setType(MimeUtils.guessMimeTypeFromUri(activity, activity.xmppConnectionService.getFileBackend().getUriForFile(activity, file)));
2730        intent.putExtra(Intent.EXTRA_TITLE, name);
2731
2732        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2733        final String dir = p.getString("sticker_directory", "Stickers");
2734        if (dir.startsWith("content://")) {
2735            intent.putExtra("android.provider.extra.INITIAL_URI", Uri.parse(dir));
2736        } else {
2737            new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/" + dir + "/User Pack").mkdirs();
2738            Uri uri;
2739            if (Build.VERSION.SDK_INT >= 29) {
2740                Intent tmp = ((StorageManager) activity.getSystemService(Context.STORAGE_SERVICE)).getPrimaryStorageVolume().createOpenDocumentTreeIntent();
2741                uri = tmp.getParcelableExtra("android.provider.extra.INITIAL_URI");
2742                uri = Uri.parse(uri.toString().replace("/root/", "/document/") + "%3APictures%2F" + dir);
2743            } else {
2744                uri = Uri.parse("content://com.android.externalstorage.documents/document/primary%3APictures%2F" + dir);
2745            }
2746            intent.putExtra("android.provider.extra.INITIAL_URI", uri);
2747            intent.putExtra("android.content.extra.SHOW_ADVANCED", true);
2748        }
2749
2750        Toast.makeText(activity, "Choose a sticker pack to add this sticker to", Toast.LENGTH_SHORT).show();
2751        startActivityForResult(Intent.createChooser(intent, "Choose sticker pack"), REQUEST_SAVE_STICKER);
2752    }
2753
2754    private void deleteFile(final Message message) {
2755        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2756        builder.setNegativeButton(R.string.cancel, null);
2757        builder.setTitle(R.string.delete_file_dialog);
2758        builder.setMessage(R.string.delete_file_dialog_msg);
2759        builder.setPositiveButton(
2760                R.string.confirm,
2761                (dialog, which) -> {
2762                    List<Element> thumbs = selectedMessage.getFileParams() != null ? selectedMessage.getFileParams().getThumbnails() : null;
2763                    if (thumbs != null && !thumbs.isEmpty()) {
2764                        for (Element thumb : thumbs) {
2765                            Uri uri = Uri.parse(thumb.getAttribute("uri"));
2766                            if (uri.getScheme().equals("cid")) {
2767                                Cid cid = BobTransfer.cid(uri);
2768                                if (cid == null) continue;
2769                                DownloadableFile f = activity.xmppConnectionService.getFileForCid(cid);
2770                                activity.xmppConnectionService.evictPreview(f);
2771                                f.delete();
2772                            }
2773                        }
2774                    }
2775                    if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
2776                        activity.xmppConnectionService.evictPreview(activity.xmppConnectionService.getFileBackend().getFile(message));
2777                        activity.xmppConnectionService.updateMessage(message, false);
2778                        activity.onConversationsListItemUpdated();
2779                        refresh();
2780                    }
2781                });
2782        builder.create().show();
2783    }
2784
2785    private void resendMessage(final Message message) {
2786        if (message.isFileOrImage()) {
2787            if (!(message.getConversation() instanceof Conversation)) {
2788                return;
2789            }
2790            final Conversation conversation = (Conversation) message.getConversation();
2791            final DownloadableFile file =
2792                    activity.xmppConnectionService.getFileBackend().getFile(message);
2793            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
2794                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
2795                if (!message.hasFileOnRemoteHost()
2796                        && xmppConnection != null
2797                        && conversation.getMode() == Conversational.MODE_SINGLE
2798                        && !xmppConnection
2799                                .getFeatures()
2800                                .httpUpload(message.getFileParams().getSize())) {
2801                    activity.selectPresence(
2802                            conversation,
2803                            () -> {
2804                                message.setCounterpart(conversation.getNextCounterpart());
2805                                activity.xmppConnectionService.resendFailedMessages(message);
2806                                new Handler()
2807                                        .post(
2808                                                () -> {
2809                                                    int size = messageList.size();
2810                                                    this.binding.messagesView.setSelection(
2811                                                            size - 1);
2812                                                });
2813                            });
2814                    return;
2815                }
2816            } else if (!Compatibility.hasStoragePermission(getActivity())) {
2817                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
2818                return;
2819            } else {
2820                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
2821                message.setDeleted(true);
2822                activity.xmppConnectionService.updateMessage(message, false);
2823                activity.onConversationsListItemUpdated();
2824                refresh();
2825                return;
2826            }
2827        }
2828        activity.xmppConnectionService.resendFailedMessages(message);
2829        new Handler()
2830                .post(
2831                        () -> {
2832                            int size = messageList.size();
2833                            this.binding.messagesView.setSelection(size - 1);
2834                        });
2835    }
2836
2837    private void cancelTransmission(Message message) {
2838        Transferable transferable = message.getTransferable();
2839        if (transferable != null) {
2840            transferable.cancel();
2841        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
2842            activity.xmppConnectionService.markMessage(
2843                    message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
2844        }
2845    }
2846
2847    private void retryDecryption(Message message) {
2848        message.setEncryption(Message.ENCRYPTION_PGP);
2849        activity.onConversationsListItemUpdated();
2850        refresh();
2851        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
2852    }
2853
2854    public void privateMessageWith(final Jid counterpart) {
2855        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2856            activity.xmppConnectionService.sendChatState(conversation);
2857        }
2858        this.binding.textinput.setText("");
2859        this.conversation.setNextCounterpart(counterpart);
2860        updateChatMsgHint();
2861        updateSendButton();
2862        updateEditablity();
2863    }
2864
2865    private void correctMessage(Message message) {
2866        while (message.mergeable(message.next())) {
2867            message = message.next();
2868        }
2869        setThread(message.getThread());
2870        conversation.setUserSelectedThread(true);
2871        this.conversation.setCorrectingMessage(message);
2872        final Editable editable = binding.textinput.getText();
2873        this.conversation.setDraftMessage(editable.toString());
2874        this.binding.textinput.setText("");
2875        this.binding.textinput.append(message.getBody());
2876        if (message.getSubject() != null && message.getSubject().length() > 0) {
2877            this.binding.textinputSubject.setText(message.getSubject());
2878            this.binding.textinputSubject.setVisibility(View.VISIBLE);
2879        }
2880    }
2881
2882    private void highlightInConference(String nick) {
2883        final Editable editable = this.binding.textinput.getText();
2884        String oldString = editable.toString().trim();
2885        final int pos = this.binding.textinput.getSelectionStart();
2886        if (oldString.isEmpty() || pos == 0) {
2887            editable.insert(0, nick + ": ");
2888        } else {
2889            final char before = editable.charAt(pos - 1);
2890            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
2891            if (before == '\n') {
2892                editable.insert(pos, nick + ": ");
2893            } else {
2894                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
2895                    if (NickValidityChecker.check(
2896                            conversation,
2897                            Arrays.asList(
2898                                    editable.subSequence(0, pos - 2).toString().split(", ")))) {
2899                        editable.insert(pos - 2, ", " + nick);
2900                        return;
2901                    }
2902                }
2903                editable.insert(
2904                        pos,
2905                        (Character.isWhitespace(before) ? "" : " ")
2906                                + nick
2907                                + (Character.isWhitespace(after) ? "" : " "));
2908                if (Character.isWhitespace(after)) {
2909                    this.binding.textinput.setSelection(
2910                            this.binding.textinput.getSelectionStart() + 1);
2911                }
2912            }
2913        }
2914    }
2915
2916    @Override
2917    public void startActivityForResult(Intent intent, int requestCode) {
2918        final Activity activity = getActivity();
2919        if (activity instanceof ConversationsActivity) {
2920            ((ConversationsActivity) activity).clearPendingViewIntent();
2921        }
2922        super.startActivityForResult(intent, requestCode);
2923    }
2924
2925    @Override
2926    public void onSaveInstanceState(@NotNull Bundle outState) {
2927        super.onSaveInstanceState(outState);
2928        if (conversation != null) {
2929            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
2930            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
2931            final Uri uri = pendingTakePhotoUri.peek();
2932            if (uri != null) {
2933                outState.putString(STATE_PHOTO_URI, uri.toString());
2934            }
2935            final ScrollState scrollState = getScrollPosition();
2936            if (scrollState != null) {
2937                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
2938            }
2939            final ArrayList<Attachment> attachments =
2940                    mediaPreviewAdapter == null
2941                            ? new ArrayList<>()
2942                            : mediaPreviewAdapter.getAttachments();
2943            if (attachments.size() > 0) {
2944                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
2945            }
2946        }
2947    }
2948
2949    @Override
2950    public void onActivityCreated(Bundle savedInstanceState) {
2951        super.onActivityCreated(savedInstanceState);
2952        if (savedInstanceState == null) {
2953            return;
2954        }
2955        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
2956        ArrayList<Attachment> attachments =
2957                savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
2958        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
2959        if (uuid != null) {
2960            QuickLoader.set(uuid);
2961            this.pendingConversationsUuid.push(uuid);
2962            if (attachments != null && attachments.size() > 0) {
2963                this.pendingMediaPreviews.push(attachments);
2964            }
2965            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
2966            if (takePhotoUri != null) {
2967                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2968            }
2969            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2970        }
2971    }
2972
2973    @Override
2974    public void onStart() {
2975        super.onStart();
2976        if (this.reInitRequiredOnStart && this.conversation != null) {
2977            final Bundle extras = pendingExtras.pop();
2978            reInit(this.conversation, extras != null);
2979            if (extras != null) {
2980                processExtras(extras);
2981            }
2982        } else if (conversation == null
2983                && activity != null
2984                && activity.xmppConnectionService != null) {
2985            final String uuid = pendingConversationsUuid.pop();
2986            Log.d(
2987                    Config.LOGTAG,
2988                    "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid="
2989                            + uuid);
2990            if (uuid != null) {
2991                findAndReInitByUuidOrArchive(uuid);
2992            }
2993        }
2994    }
2995
2996    @Override
2997    public void onStop() {
2998        super.onStop();
2999        final Activity activity = getActivity();
3000        messageListAdapter.unregisterListenerInAudioPlayer();
3001        if (activity == null || !activity.isChangingConfigurations()) {
3002            hideSoftKeyboard(activity);
3003            messageListAdapter.stopAudioPlayer();
3004        }
3005        if (this.conversation != null) {
3006            final String msg = this.binding.textinput.getText().toString();
3007            storeNextMessage(msg);
3008            updateChatState(this.conversation, msg);
3009            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
3010        }
3011        this.reInitRequiredOnStart = true;
3012        if (emojiPopup != null) emojiPopup.dismiss();
3013    }
3014
3015    private void updateChatState(final Conversation conversation, final String msg) {
3016        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
3017        Account.State status = conversation.getAccount().getStatus();
3018        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
3019            activity.xmppConnectionService.sendChatState(conversation);
3020        }
3021    }
3022
3023    private void saveMessageDraftStopAudioPlayer() {
3024        final Conversation previousConversation = this.conversation;
3025        if (this.activity == null || this.binding == null || previousConversation == null) {
3026            return;
3027        }
3028        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
3029        final String msg = this.binding.textinput.getText().toString();
3030        storeNextMessage(msg);
3031        updateChatState(this.conversation, msg);
3032        messageListAdapter.stopAudioPlayer();
3033        mediaPreviewAdapter.clearPreviews();
3034        toggleInputMethod();
3035    }
3036
3037    public void reInit(final Conversation conversation, final Bundle extras) {
3038        QuickLoader.set(conversation.getUuid());
3039        final boolean changedConversation = this.conversation != conversation;
3040        if (changedConversation) {
3041            this.saveMessageDraftStopAudioPlayer();
3042        }
3043        this.clearPending();
3044        if (this.reInit(conversation, extras != null)) {
3045            if (extras != null) {
3046                processExtras(extras);
3047            }
3048            this.reInitRequiredOnStart = false;
3049        } else {
3050            this.reInitRequiredOnStart = true;
3051            pendingExtras.push(extras);
3052        }
3053        resetUnreadMessagesCount();
3054    }
3055
3056    private void reInit(Conversation conversation) {
3057        reInit(conversation, false);
3058    }
3059
3060    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
3061        if (conversation == null) {
3062            return false;
3063        }
3064        final Conversation originalConversation = this.conversation;
3065        this.conversation = conversation;
3066        // once we set the conversation all is good and it will automatically do the right thing in
3067        // onStart()
3068        if (this.activity == null || this.binding == null) {
3069            return false;
3070        }
3071
3072        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
3073            activity.onConversationArchived(this.conversation);
3074            return false;
3075        }
3076
3077        setThread(conversation.getThread());
3078        setupReply(conversation.getReplyTo());
3079
3080        stopScrolling();
3081        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
3082
3083        if (this.conversation.isRead() && hasExtras) {
3084            Log.d(Config.LOGTAG, "trimming conversation");
3085            this.conversation.trim();
3086        }
3087
3088        setupIme();
3089
3090        final boolean scrolledToBottomAndNoPending =
3091                this.scrolledToBottom() && pendingScrollState.peek() == null;
3092
3093        this.binding.textSendButton.setContentDescription(
3094                activity.getString(R.string.send_message_to_x, conversation.getName()));
3095        this.binding.textinput.setKeyboardListener(null);
3096        this.binding.textinputSubject.setKeyboardListener(null);
3097        final boolean participating =
3098                conversation.getMode() == Conversational.MODE_SINGLE
3099                        || conversation.getMucOptions().participating();
3100        if (participating) {
3101            this.binding.textinput.setText(this.conversation.getNextMessage());
3102            this.binding.textinput.setSelection(this.binding.textinput.length());
3103        } else {
3104            this.binding.textinput.setText(MessageUtils.EMPTY_STRING);
3105        }
3106        this.binding.textinput.setKeyboardListener(this);
3107        this.binding.textinputSubject.setKeyboardListener(this);
3108        messageListAdapter.updatePreferences();
3109        refresh(false);
3110        activity.invalidateOptionsMenu();
3111        this.conversation.messagesLoaded.set(true);
3112        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
3113
3114        if (hasExtras || scrolledToBottomAndNoPending) {
3115            resetUnreadMessagesCount();
3116            synchronized (this.messageList) {
3117                Log.d(Config.LOGTAG, "jump to first unread message");
3118                final Message first = conversation.getFirstUnreadMessage();
3119                final int bottom = Math.max(0, this.messageList.size() - 1);
3120                final int pos;
3121                final boolean jumpToBottom;
3122                if (first == null) {
3123                    pos = bottom;
3124                    jumpToBottom = true;
3125                } else {
3126                    int i = getIndexOf(first.getUuid(), this.messageList);
3127                    pos = i < 0 ? bottom : i;
3128                    jumpToBottom = false;
3129                }
3130                setSelection(pos, jumpToBottom);
3131            }
3132        }
3133
3134        this.binding.messagesView.post(this::fireReadEvent);
3135        // TODO if we only do this when this fragment is running on main it won't *bing* in tablet
3136        // layout which might be unnecessary since we can *see* it
3137        activity.xmppConnectionService
3138                .getNotificationService()
3139                .setOpenConversation(this.conversation);
3140
3141        if (commandAdapter != null && conversation != originalConversation) {
3142            commandAdapter.clear();
3143            conversation.setupViewPager(binding.conversationViewPager, binding.tabLayout, activity.xmppConnectionService.isOnboarding(), originalConversation);
3144            refreshCommands(false);
3145        }
3146        if (commandAdapter == null && conversation != null) {
3147            conversation.setupViewPager(binding.conversationViewPager, binding.tabLayout, activity.xmppConnectionService.isOnboarding(), null);
3148            commandAdapter = new CommandAdapter((XmppActivity) getActivity());
3149            binding.commandsView.setAdapter(commandAdapter);
3150            binding.commandsView.setOnItemClickListener((parent, view, position, id) -> {
3151                if (activity == null) return;
3152
3153                final Element command = commandAdapter.getItem(position);
3154                activity.startCommand(ConversationFragment.this.conversation.getAccount(), command.getAttributeAsJid("jid"), command.getAttribute("node"));
3155            });
3156            refreshCommands(false);
3157        }
3158
3159        binding.commandsNote.setVisibility(activity.xmppConnectionService.isOnboarding() ? View.VISIBLE : View.GONE);
3160
3161        return true;
3162    }
3163
3164    public void refreshForNewCaps() {
3165        refreshCommands(true);
3166    }
3167
3168    protected void refreshCommands(boolean delayShow) {
3169        if (commandAdapter == null) return;
3170
3171        Jid commandJid = conversation.getContact().resourceWhichSupport(Namespace.COMMANDS);
3172        if (commandJid == null && conversation.getMode() == Conversation.MODE_MULTI && conversation.getMucOptions().hasFeature(Namespace.COMMANDS)) {
3173            commandJid = conversation.getJid().asBareJid();
3174        }
3175        if (commandJid == null && conversation.getJid().isDomainJid()) {
3176            commandJid = conversation.getJid();
3177        }
3178        if (commandJid == null) {
3179            conversation.hideViewPager();
3180        } else {
3181            if (!delayShow) conversation.showViewPager();
3182            binding.commandsViewProgressbar.setVisibility(View.VISIBLE);
3183            activity.xmppConnectionService.fetchCommands(conversation.getAccount(), commandJid, (a, iq) -> {
3184                if (activity == null) return;
3185
3186                activity.runOnUiThread(() -> {
3187                    if (iq.getType() == IqPacket.TYPE.RESULT) {
3188                        binding.commandsViewProgressbar.setVisibility(View.GONE);
3189                        commandAdapter.clear();
3190                        for (Element child : iq.query().getChildren()) {
3191                            if (!"item".equals(child.getName()) || !Namespace.DISCO_ITEMS.equals(child.getNamespace())) continue;
3192                            commandAdapter.add(child);
3193                        }
3194                    }
3195
3196                    if (commandAdapter.getCount() < 1) {
3197                        conversation.hideViewPager();
3198                    } else if (delayShow) {
3199                        conversation.showViewPager();
3200                    }
3201                });
3202            });
3203        }
3204    }
3205
3206    private void resetUnreadMessagesCount() {
3207        lastMessageUuid = null;
3208        hideUnreadMessagesCount();
3209    }
3210
3211    private void hideUnreadMessagesCount() {
3212        if (this.binding == null) {
3213            return;
3214        }
3215        this.binding.scrollToBottomButton.setEnabled(false);
3216        this.binding.scrollToBottomButton.hide();
3217        this.binding.unreadCountCustomView.setVisibility(View.GONE);
3218    }
3219
3220    private void setSelection(int pos, boolean jumpToBottom) {
3221        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
3222        this.binding.messagesView.post(
3223                () -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
3224        this.binding.messagesView.post(this::fireReadEvent);
3225    }
3226
3227    private boolean scrolledToBottom() {
3228        return this.binding != null && scrolledToBottom(this.binding.messagesView);
3229    }
3230
3231    private void processExtras(final Bundle extras) {
3232        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
3233        final String text = extras.getString(Intent.EXTRA_TEXT);
3234        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
3235        final String node = extras.getString(ConversationsActivity.EXTRA_NODE);
3236        final String postInitAction =
3237                extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
3238        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
3239        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
3240        final boolean doNotAppend =
3241                extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
3242        final String type = extras.getString(ConversationsActivity.EXTRA_TYPE);
3243
3244        final String thread = extras.getString(ConversationsActivity.EXTRA_THREAD);
3245        if (thread != null) {
3246            conversation.setLockThread(true);
3247            backPressedLeaveSingleThread.setEnabled(true);
3248            setThread(new Element("thread").setContent(thread));
3249            refresh();
3250        }
3251
3252        final List<Uri> uris = extractUris(extras);
3253        if (uris != null && uris.size() > 0) {
3254            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
3255                mediaPreviewAdapter.addMediaPreviews(
3256                        Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
3257            } else {
3258                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
3259                mediaPreviewAdapter.addMediaPreviews(
3260                        Attachment.of(getActivity(), cleanedUris, type));
3261            }
3262            toggleInputMethod();
3263            return;
3264        }
3265        if (nick != null) {
3266            if (pm) {
3267                Jid jid = conversation.getJid();
3268                try {
3269                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
3270                    privateMessageWith(next);
3271                } catch (final IllegalArgumentException ignored) {
3272                    // do nothing
3273                }
3274            } else {
3275                final MucOptions mucOptions = conversation.getMucOptions();
3276                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
3277                    highlightInConference(nick);
3278                }
3279            }
3280        } else {
3281            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
3282                mediaPreviewAdapter.addMediaPreviews(
3283                        Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
3284                toggleInputMethod();
3285                return;
3286            } else if (text != null && asQuote) {
3287                quoteText(text);
3288            } else {
3289                appendText(text, doNotAppend);
3290            }
3291        }
3292        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
3293            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
3294            return;
3295        }
3296        if ("call".equals(postInitAction)) {
3297            checkPermissionAndTriggerAudioCall();
3298        }
3299        if ("message".equals(postInitAction)) {
3300            binding.conversationViewPager.post(() -> {
3301                binding.conversationViewPager.setCurrentItem(0);
3302            });
3303        }
3304        if ("command".equals(postInitAction)) {
3305            binding.conversationViewPager.post(() -> {
3306                PagerAdapter adapter = binding.conversationViewPager.getAdapter();
3307                if (adapter != null && adapter.getCount() > 1) {
3308                    binding.conversationViewPager.setCurrentItem(1);
3309                }
3310                final String jid = extras.getString(ConversationsActivity.EXTRA_JID);
3311                Jid commandJid = null;
3312                if (jid != null) {
3313                    try {
3314                        commandJid = Jid.of(jid);
3315                    } catch (final IllegalArgumentException e) { }
3316                }
3317                if (commandJid == null || !commandJid.isFullJid()) {
3318                    final Jid discoJid = conversation.getContact().resourceWhichSupport(Namespace.COMMANDS);
3319                    if (discoJid != null) commandJid = discoJid;
3320                }
3321                if (node != null && commandJid != null) {
3322                    conversation.startCommand(commandFor(commandJid, node), activity.xmppConnectionService);
3323                }
3324            });
3325            return;
3326        }
3327        Message message =
3328                downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
3329        if ("webxdc".equals(postInitAction)) {
3330            if (message == null) {
3331                message = activity.xmppConnectionService.getMessage(conversation, downloadUuid);
3332            }
3333            if (message == null) return;
3334
3335            Cid webxdcCid = message.getFileParams().getCids().get(0);
3336            WebxdcPage webxdc = new WebxdcPage(activity, webxdcCid, message, activity.xmppConnectionService);
3337            Conversation conversation = (Conversation) message.getConversation();
3338            if (!conversation.switchToSession("webxdc\0" + message.getUuid())) {
3339                conversation.startWebxdc(webxdc);
3340            }
3341        }
3342        if (message != null) {
3343            startDownloadable(message);
3344        }
3345        if (activity.xmppConnectionService.isOnboarding() && conversation.getJid().equals(Jid.of("cheogram.com"))) {
3346            if (!conversation.switchToSession("jabber:iq:register")) {
3347                conversation.startCommand(commandFor(Jid.of("cheogram.com/CHEOGRAM%jabber:iq:register"), "jabber:iq:register"), activity.xmppConnectionService);
3348            }
3349        }
3350    }
3351
3352    private Element commandFor(final Jid jid, final String node) {
3353        if (commandAdapter != null) {
3354            for (int i = 0; i < commandAdapter.getCount(); i++) {
3355                Element command = commandAdapter.getItem(i);
3356                final String commandNode = command.getAttribute("node");
3357                if (commandNode == null || !commandNode.equals(node)) continue;
3358
3359                final Jid commandJid = command.getAttributeAsJid("jid");
3360                if (commandJid != null && !commandJid.asBareJid().equals(jid.asBareJid())) continue;
3361
3362                return command;
3363            }
3364        }
3365
3366        return new Element("command", Namespace.COMMANDS).setAttribute("name", node).setAttribute("node", node).setAttribute("jid", jid);
3367    }
3368
3369    private List<Uri> extractUris(final Bundle extras) {
3370        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
3371        if (uris != null) {
3372            return uris;
3373        }
3374        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
3375        if (uri != null) {
3376            return Collections.singletonList(uri);
3377        } else {
3378            return null;
3379        }
3380    }
3381
3382    private List<Uri> cleanUris(final List<Uri> uris) {
3383        final Iterator<Uri> iterator = uris.iterator();
3384        while (iterator.hasNext()) {
3385            final Uri uri = iterator.next();
3386            if (FileBackend.weOwnFile(uri)) {
3387                iterator.remove();
3388                Toast.makeText(
3389                                getActivity(),
3390                                R.string.security_violation_not_attaching_file,
3391                                Toast.LENGTH_SHORT)
3392                        .show();
3393            }
3394        }
3395        return uris;
3396    }
3397
3398    private boolean showBlockSubmenu(View view) {
3399        final Jid jid = conversation.getJid();
3400        final boolean showReject = conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
3401        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
3402        popupMenu.inflate(R.menu.block);
3403        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
3404        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
3405        popupMenu.setOnMenuItemClickListener(
3406                menuItem -> {
3407                    Blockable blockable;
3408                    switch (menuItem.getItemId()) {
3409                        case R.id.reject:
3410                            activity.xmppConnectionService.stopPresenceUpdatesTo(
3411                                    conversation.getContact());
3412                            updateSnackBar(conversation);
3413                            return true;
3414                        case R.id.block_domain:
3415                            blockable =
3416                                    conversation
3417                                            .getAccount()
3418                                            .getRoster()
3419                                            .getContact(jid.getDomain());
3420                            break;
3421                        default:
3422                            blockable = conversation;
3423                    }
3424                    BlockContactDialog.show(activity, blockable);
3425                    return true;
3426                });
3427        popupMenu.show();
3428        return true;
3429    }
3430
3431    private void updateSnackBar(final Conversation conversation) {
3432        final Account account = conversation.getAccount();
3433        final XmppConnection connection = account.getXmppConnection();
3434        final int mode = conversation.getMode();
3435        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
3436        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
3437            return;
3438        }
3439        if (account.getStatus() == Account.State.DISABLED) {
3440            showSnackbar(
3441                    R.string.this_account_is_disabled,
3442                    R.string.enable,
3443                    this.mEnableAccountListener);
3444        } else if (account.getStatus() == Account.State.LOGGED_OUT) {
3445            showSnackbar(R.string.this_account_is_logged_out,R.string.log_in,this.mEnableAccountListener);
3446        } else if (conversation.isBlocked()) {
3447            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
3448        } else if (contact != null
3449                && !contact.showInRoster()
3450                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
3451            showSnackbar(
3452                    R.string.contact_added_you,
3453                    R.string.add_back,
3454                    this.mAddBackClickListener,
3455                    this.mLongPressBlockListener);
3456        } else if (contact != null
3457                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
3458            showSnackbar(
3459                    R.string.contact_asks_for_presence_subscription,
3460                    R.string.allow,
3461                    this.mAllowPresenceSubscription,
3462                    this.mLongPressBlockListener);
3463        } else if (mode == Conversation.MODE_MULTI
3464                && !conversation.getMucOptions().online()
3465                && account.getStatus() == Account.State.ONLINE) {
3466            switch (conversation.getMucOptions().getError()) {
3467                case NICK_IN_USE:
3468                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
3469                    break;
3470                case NO_RESPONSE:
3471                    showSnackbar(R.string.joining_conference, 0, null);
3472                    break;
3473                case SERVER_NOT_FOUND:
3474                    if (conversation.receivedMessagesCount() > 0) {
3475                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
3476                    } else {
3477                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
3478                    }
3479                    break;
3480                case REMOTE_SERVER_TIMEOUT:
3481                    if (conversation.receivedMessagesCount() > 0) {
3482                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
3483                    } else {
3484                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
3485                    }
3486                    break;
3487                case PASSWORD_REQUIRED:
3488                    showSnackbar(
3489                            R.string.conference_requires_password,
3490                            R.string.enter_password,
3491                            enterPassword);
3492                    break;
3493                case BANNED:
3494                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
3495                    break;
3496                case MEMBERS_ONLY:
3497                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
3498                    break;
3499                case RESOURCE_CONSTRAINT:
3500                    showSnackbar(
3501                            R.string.conference_resource_constraint, R.string.try_again, joinMuc);
3502                    break;
3503                case KICKED:
3504                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
3505                    break;
3506                case TECHNICAL_PROBLEMS:
3507                    showSnackbar(R.string.conference_technical_problems, R.string.try_again, joinMuc);
3508                    break;
3509                case UNKNOWN:
3510                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
3511                    break;
3512                case INVALID_NICK:
3513                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
3514                case SHUTDOWN:
3515                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
3516                    break;
3517                case DESTROYED:
3518                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
3519                    break;
3520                case NON_ANONYMOUS:
3521                    showSnackbar(
3522                            R.string.group_chat_will_make_your_jabber_id_public,
3523                            R.string.join,
3524                            acceptJoin);
3525                    break;
3526                default:
3527                    hideSnackbar();
3528                    break;
3529            }
3530        } else if (account.hasPendingPgpIntent(conversation)) {
3531            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
3532        } else if (connection != null
3533                && connection.getFeatures().blocking()
3534                && conversation.countMessages() != 0
3535                && !conversation.isBlocked()
3536                && conversation.isWithStranger()) {
3537            showSnackbar(
3538                    R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
3539        } else {
3540            hideSnackbar();
3541        }
3542    }
3543
3544    @Override
3545    public void refresh() {
3546        if (this.binding == null) {
3547            Log.d(
3548                    Config.LOGTAG,
3549                    "ConversationFragment.refresh() skipped updated because view binding was null");
3550            return;
3551        }
3552        if (this.conversation != null
3553                && this.activity != null
3554                && this.activity.xmppConnectionService != null) {
3555            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
3556                activity.onConversationArchived(this.conversation);
3557                return;
3558            }
3559        }
3560        this.refresh(true);
3561    }
3562
3563    private void refresh(boolean notifyConversationRead) {
3564        synchronized (this.messageList) {
3565            if (this.conversation != null) {
3566                if (messageListAdapter.hasSelection()) {
3567                    if (notifyConversationRead) binding.messagesView.postDelayed(this::refresh, 1000L);
3568                } else {
3569                    conversation.populateWithMessages(this.messageList);
3570                    updateStatusMessages();
3571                    this.messageListAdapter.notifyDataSetChanged();
3572                }
3573                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
3574                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
3575                    binding.unreadCountCustomView.setUnreadCount(
3576                            conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
3577                }
3578                updateSnackBar(conversation);
3579                if (activity != null) updateChatMsgHint();
3580                if (notifyConversationRead && activity != null) {
3581                    binding.messagesView.post(this::fireReadEvent);
3582                }
3583                updateSendButton();
3584                updateEditablity();
3585                conversation.refreshSessions();
3586            }
3587        }
3588    }
3589
3590    protected void messageSent() {
3591        binding.textinputSubject.setText("");
3592        binding.textinputSubject.setVisibility(View.GONE);
3593        setThread(null);
3594        conversation.setUserSelectedThread(false);
3595        mSendingPgpMessage.set(false);
3596        this.binding.textinput.setText("");
3597        if (conversation.setCorrectingMessage(null)) {
3598            this.binding.textinput.append(conversation.getDraftMessage());
3599            conversation.setDraftMessage(null);
3600        }
3601        storeNextMessage();
3602        updateChatMsgHint();
3603        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
3604        final boolean prefScrollToBottom =
3605                p.getBoolean(
3606                        "scroll_to_bottom",
3607                        activity.getResources().getBoolean(R.bool.scroll_to_bottom));
3608        if (prefScrollToBottom || scrolledToBottom()) {
3609            new Handler()
3610                    .post(
3611                            () -> {
3612                                int size = messageList.size();
3613                                this.binding.messagesView.setSelection(size - 1);
3614                            });
3615        }
3616    }
3617
3618    private boolean storeNextMessage() {
3619        return storeNextMessage(this.binding.textinput.getText().toString());
3620    }
3621
3622    private boolean storeNextMessage(String msg) {
3623        final boolean participating =
3624                conversation.getMode() == Conversational.MODE_SINGLE
3625                        || conversation.getMucOptions().participating();
3626        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED
3627                && participating
3628                && this.conversation.setNextMessage(msg)) {
3629            this.activity.xmppConnectionService.updateConversation(this.conversation);
3630            return true;
3631        }
3632        return false;
3633    }
3634
3635    public void doneSendingPgpMessage() {
3636        mSendingPgpMessage.set(false);
3637    }
3638
3639    public long getMaxHttpUploadSize(Conversation conversation) {
3640        final XmppConnection connection = conversation.getAccount().getXmppConnection();
3641        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
3642    }
3643
3644    private boolean canWrite() {
3645        return
3646                this.conversation.getMode() == Conversation.MODE_SINGLE
3647                        || this.conversation.getMucOptions().participating()
3648                        || this.conversation.getNextCounterpart() != null;
3649    }
3650
3651    private void updateEditablity() {
3652        boolean canWrite = canWrite();
3653        this.binding.textinput.setFocusable(canWrite);
3654        this.binding.textinput.setFocusableInTouchMode(canWrite);
3655        this.binding.textSendButton.setEnabled(canWrite);
3656        this.binding.textSendButton.setVisibility(canWrite ? View.VISIBLE : View.GONE);
3657        this.binding.requestVoice.setVisibility(canWrite ? View.GONE : View.VISIBLE);
3658        this.binding.textinput.setCursorVisible(canWrite);
3659        this.binding.textinput.setEnabled(canWrite);
3660    }
3661
3662    public void updateSendButton() {
3663        boolean hasAttachments =
3664                mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
3665        final Conversation c = this.conversation;
3666        final Presence.Status status;
3667        final String text =
3668                this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
3669        final SendButtonAction action;
3670        if (hasAttachments) {
3671            action = SendButtonAction.TEXT;
3672        } else {
3673            action = SendButtonTool.getAction(getActivity(), c, text, binding.textinputSubject.getText().toString());
3674        }
3675        if (c.getAccount().getStatus() == Account.State.ONLINE) {
3676            if (activity != null
3677                    && activity.xmppConnectionService != null
3678                    && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
3679                status = Presence.Status.OFFLINE;
3680            } else if (c.getMode() == Conversation.MODE_SINGLE) {
3681                status = c.getContact().getShownStatus();
3682            } else {
3683                status =
3684                        c.getMucOptions().online()
3685                                ? Presence.Status.ONLINE
3686                                : Presence.Status.OFFLINE;
3687            }
3688        } else {
3689            status = Presence.Status.OFFLINE;
3690        }
3691        this.binding.textSendButton.setTag(action);
3692        final Activity activity = getActivity();
3693        if (activity != null) {
3694            this.binding.textSendButton.setImageDrawable(
3695                    SendButtonTool.getSendButtonImageResource(activity, action, status, text.length() > 0 || hasAttachments || (c.getThread() != null && binding.textinputSubject.getText().length() > 0)));
3696        }
3697
3698        ViewGroup.LayoutParams params = binding.threadIdenticonLayout.getLayoutParams();
3699        if (identiconWidth < 0) identiconWidth = params.width;
3700        if (hasAttachments || binding.textinput.getText().toString().replaceFirst("^(\\w|[, ])+:\\s*", "").length() > 0) {
3701            binding.conversationViewPager.setCurrentItem(0);
3702            params.width = conversation.getThread() == null ? 0 : identiconWidth;
3703        } else {
3704            params.width = identiconWidth;
3705        }
3706        if (!canWrite()) params.width = 0;
3707        binding.threadIdenticonLayout.setLayoutParams(params);
3708    }
3709
3710    protected void updateStatusMessages() {
3711        DateSeparator.addAll(this.messageList);
3712        if (showLoadMoreMessages(conversation)) {
3713            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
3714        }
3715        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3716            ChatState state = conversation.getIncomingChatState();
3717            if (state == ChatState.COMPOSING) {
3718                this.messageList.add(
3719                        Message.createStatusMessage(
3720                                conversation,
3721                                getString(R.string.contact_is_typing, conversation.getName())));
3722            } else if (state == ChatState.PAUSED) {
3723                this.messageList.add(
3724                        Message.createStatusMessage(
3725                                conversation,
3726                                getString(
3727                                        R.string.contact_has_stopped_typing,
3728                                        conversation.getName())));
3729            } else {
3730                for (int i = this.messageList.size() - 1; i >= 0; --i) {
3731                    final Message message = this.messageList.get(i);
3732                    if (message.getType() != Message.TYPE_STATUS) {
3733                        if (message.getStatus() == Message.STATUS_RECEIVED) {
3734                            return;
3735                        } else {
3736                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
3737                                this.messageList.add(
3738                                        i + 1,
3739                                        Message.createStatusMessage(
3740                                                conversation,
3741                                                getString(
3742                                                        R.string.contact_has_read_up_to_this_point,
3743                                                        conversation.getName())));
3744                                return;
3745                            }
3746                        }
3747                    }
3748                }
3749            }
3750        } else {
3751            final MucOptions mucOptions = conversation.getMucOptions();
3752            final List<MucOptions.User> allUsers = mucOptions.getUsers();
3753            final Set<ReadByMarker> addedMarkers = new HashSet<>();
3754            ChatState state = ChatState.COMPOSING;
3755            List<MucOptions.User> users =
3756                    conversation.getMucOptions().getUsersWithChatState(state, 5);
3757            if (users.size() == 0) {
3758                state = ChatState.PAUSED;
3759                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
3760            }
3761            if (mucOptions.isPrivateAndNonAnonymous()) {
3762                for (int i = this.messageList.size() - 1; i >= 0; --i) {
3763                    final Set<ReadByMarker> markersForMessage =
3764                            messageList.get(i).getReadByMarkers();
3765                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
3766                    for (ReadByMarker marker : markersForMessage) {
3767                        if (!ReadByMarker.contains(marker, addedMarkers)) {
3768                            addedMarkers.add(
3769                                    marker); // may be put outside this condition. set should do
3770                                             // dedup anyway
3771                            MucOptions.User user = mucOptions.findUser(marker);
3772                            if (user != null && !users.contains(user)) {
3773                                shownMarkers.add(user);
3774                            }
3775                        }
3776                    }
3777                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
3778                    final Message statusMessage;
3779                    final int size = shownMarkers.size();
3780                    if (size > 1) {
3781                        final String body;
3782                        if (size <= 4) {
3783                            body =
3784                                    getString(
3785                                            R.string.contacts_have_read_up_to_this_point,
3786                                            UIHelper.concatNames(shownMarkers));
3787                        } else if (ReadByMarker.allUsersRepresented(
3788                                allUsers, markersForMessage, markerForSender)) {
3789                            body = getString(R.string.everyone_has_read_up_to_this_point);
3790                        } else {
3791                            body =
3792                                    getString(
3793                                            R.string.contacts_and_n_more_have_read_up_to_this_point,
3794                                            UIHelper.concatNames(shownMarkers, 3),
3795                                            size - 3);
3796                        }
3797                        statusMessage = Message.createStatusMessage(conversation, body);
3798                        statusMessage.setCounterparts(shownMarkers);
3799                    } else if (size == 1) {
3800                        statusMessage =
3801                                Message.createStatusMessage(
3802                                        conversation,
3803                                        getString(
3804                                                R.string.contact_has_read_up_to_this_point,
3805                                                UIHelper.getDisplayName(shownMarkers.get(0))));
3806                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
3807                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
3808                    } else {
3809                        statusMessage = null;
3810                    }
3811                    if (statusMessage != null) {
3812                        this.messageList.add(i + 1, statusMessage);
3813                    }
3814                    addedMarkers.add(markerForSender);
3815                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
3816                        break;
3817                    }
3818                }
3819            }
3820            if (users.size() > 0) {
3821                Message statusMessage;
3822                if (users.size() == 1) {
3823                    MucOptions.User user = users.get(0);
3824                    int id =
3825                            state == ChatState.COMPOSING
3826                                    ? R.string.contact_is_typing
3827                                    : R.string.contact_has_stopped_typing;
3828                    statusMessage =
3829                            Message.createStatusMessage(
3830                                    conversation, getString(id, UIHelper.getDisplayName(user)));
3831                    statusMessage.setTrueCounterpart(user.getRealJid());
3832                    statusMessage.setCounterpart(user.getFullJid());
3833                } else {
3834                    int id =
3835                            state == ChatState.COMPOSING
3836                                    ? R.string.contacts_are_typing
3837                                    : R.string.contacts_have_stopped_typing;
3838                    statusMessage =
3839                            Message.createStatusMessage(
3840                                    conversation, getString(id, UIHelper.concatNames(users)));
3841                    statusMessage.setCounterparts(users);
3842                }
3843                this.messageList.add(statusMessage);
3844            }
3845        }
3846    }
3847
3848    private void stopScrolling() {
3849        long now = SystemClock.uptimeMillis();
3850        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
3851        binding.messagesView.dispatchTouchEvent(cancel);
3852    }
3853
3854    private boolean showLoadMoreMessages(final Conversation c) {
3855        if (activity == null || activity.xmppConnectionService == null) {
3856            return false;
3857        }
3858        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
3859        final MessageArchiveService service =
3860                activity.xmppConnectionService.getMessageArchiveService();
3861        return mam
3862                && (c.getLastClearHistory().getTimestamp() != 0
3863                        || (c.countMessages() == 0
3864                                && c.messagesLoaded.get()
3865                                && c.hasMessagesLeftOnServer()
3866                                && !service.queryInProgress(c)));
3867    }
3868
3869    private boolean hasMamSupport(final Conversation c) {
3870        if (c.getMode() == Conversation.MODE_SINGLE) {
3871            final XmppConnection connection = c.getAccount().getXmppConnection();
3872            return connection != null && connection.getFeatures().mam();
3873        } else {
3874            return c.getMucOptions().mamSupport();
3875        }
3876    }
3877
3878    protected void showSnackbar(
3879            final int message, final int action, final OnClickListener clickListener) {
3880        showSnackbar(message, action, clickListener, null);
3881    }
3882
3883    protected void showSnackbar(
3884            final int message,
3885            final int action,
3886            final OnClickListener clickListener,
3887            final View.OnLongClickListener longClickListener) {
3888        this.binding.snackbar.setVisibility(View.VISIBLE);
3889        this.binding.snackbar.setOnClickListener(null);
3890        this.binding.snackbarMessage.setText(message);
3891        this.binding.snackbarMessage.setOnClickListener(null);
3892        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
3893        if (action != 0) {
3894            this.binding.snackbarAction.setText(action);
3895        }
3896        this.binding.snackbarAction.setOnClickListener(clickListener);
3897        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
3898    }
3899
3900    protected void hideSnackbar() {
3901        this.binding.snackbar.setVisibility(View.GONE);
3902    }
3903
3904    protected void sendMessage(Message message) {
3905        new Thread(() -> activity.xmppConnectionService.sendMessage(message)).start();
3906        messageSent();
3907    }
3908
3909    protected void sendPgpMessage(final Message message) {
3910        final XmppConnectionService xmppService = activity.xmppConnectionService;
3911        final Contact contact = message.getConversation().getContact();
3912        if (!activity.hasPgp()) {
3913            activity.showInstallPgpDialog();
3914            return;
3915        }
3916        if (conversation.getAccount().getPgpSignature() == null) {
3917            activity.announcePgp(
3918                    conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
3919            return;
3920        }
3921        if (!mSendingPgpMessage.compareAndSet(false, true)) {
3922            Log.d(Config.LOGTAG, "sending pgp message already in progress");
3923        }
3924        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3925            if (contact.getPgpKeyId() != 0) {
3926                xmppService
3927                        .getPgpEngine()
3928                        .hasKey(
3929                                contact,
3930                                new UiCallback<Contact>() {
3931
3932                                    @Override
3933                                    public void userInputRequired(
3934                                            PendingIntent pi, Contact contact) {
3935                                        startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
3936                                    }
3937
3938                                    @Override
3939                                    public void success(Contact contact) {
3940                                        encryptTextMessage(message);
3941                                    }
3942
3943                                    @Override
3944                                    public void error(int error, Contact contact) {
3945                                        activity.runOnUiThread(
3946                                                () ->
3947                                                        Toast.makeText(
3948                                                                        activity,
3949                                                                        R.string
3950                                                                                .unable_to_connect_to_keychain,
3951                                                                        Toast.LENGTH_SHORT)
3952                                                                .show());
3953                                        mSendingPgpMessage.set(false);
3954                                    }
3955                                });
3956
3957            } else {
3958                showNoPGPKeyDialog(
3959                        false,
3960                        (dialog, which) -> {
3961                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3962                            xmppService.updateConversation(conversation);
3963                            message.setEncryption(Message.ENCRYPTION_NONE);
3964                            xmppService.sendMessage(message);
3965                            messageSent();
3966                        });
3967            }
3968        } else {
3969            if (conversation.getMucOptions().pgpKeysInUse()) {
3970                if (!conversation.getMucOptions().everybodyHasKeys()) {
3971                    Toast warning =
3972                            Toast.makeText(
3973                                    getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
3974                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
3975                    warning.show();
3976                }
3977                encryptTextMessage(message);
3978            } else {
3979                showNoPGPKeyDialog(
3980                        true,
3981                        (dialog, which) -> {
3982                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3983                            message.setEncryption(Message.ENCRYPTION_NONE);
3984                            xmppService.updateConversation(conversation);
3985                            xmppService.sendMessage(message);
3986                            messageSent();
3987                        });
3988            }
3989        }
3990    }
3991
3992    public void encryptTextMessage(Message message) {
3993        activity.xmppConnectionService
3994                .getPgpEngine()
3995                .encrypt(
3996                        message,
3997                        new UiCallback<Message>() {
3998
3999                            @Override
4000                            public void userInputRequired(PendingIntent pi, Message message) {
4001                                startPendingIntent(pi, REQUEST_SEND_MESSAGE);
4002                            }
4003
4004                            @Override
4005                            public void success(Message message) {
4006                                // TODO the following two call can be made before the callback
4007                                getActivity().runOnUiThread(() -> messageSent());
4008                            }
4009
4010                            @Override
4011                            public void error(final int error, Message message) {
4012                                getActivity()
4013                                        .runOnUiThread(
4014                                                () -> {
4015                                                    doneSendingPgpMessage();
4016                                                    Toast.makeText(
4017                                                                    getActivity(),
4018                                                                    error == 0
4019                                                                            ? R.string
4020                                                                                    .unable_to_connect_to_keychain
4021                                                                            : error,
4022                                                                    Toast.LENGTH_SHORT)
4023                                                            .show();
4024                                                });
4025                            }
4026                        });
4027    }
4028
4029    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
4030        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
4031        builder.setIconAttribute(android.R.attr.alertDialogIcon);
4032        if (plural) {
4033            builder.setTitle(getString(R.string.no_pgp_keys));
4034            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
4035        } else {
4036            builder.setTitle(getString(R.string.no_pgp_key));
4037            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
4038        }
4039        builder.setNegativeButton(getString(R.string.cancel), null);
4040        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
4041        builder.create().show();
4042    }
4043
4044    public void appendText(String text, final boolean doNotAppend) {
4045        if (text == null) {
4046            return;
4047        }
4048        final Editable editable = this.binding.textinput.getText();
4049        String previous = editable == null ? "" : editable.toString();
4050        if (doNotAppend && !TextUtils.isEmpty(previous)) {
4051            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG)
4052                    .show();
4053            return;
4054        }
4055        if (UIHelper.isLastLineQuote(previous)) {
4056            text = '\n' + text;
4057        } else if (previous.length() != 0
4058                && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
4059            text = " " + text;
4060        }
4061        this.binding.textinput.append(text);
4062    }
4063
4064    @Override
4065    public boolean onEnterPressed(final boolean isCtrlPressed) {
4066        if (isCtrlPressed || enterIsSend()) {
4067            sendMessage();
4068            return true;
4069        }
4070        return false;
4071    }
4072
4073    private boolean enterIsSend() {
4074        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
4075        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
4076    }
4077
4078    public boolean onArrowUpCtrlPressed() {
4079        final Message lastEditableMessage =
4080                conversation == null ? null : conversation.getLastEditableMessage();
4081        if (lastEditableMessage != null) {
4082            correctMessage(lastEditableMessage);
4083            return true;
4084        } else {
4085            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG)
4086                    .show();
4087            return false;
4088        }
4089    }
4090
4091    @Override
4092    public void onTypingStarted() {
4093        final XmppConnectionService service =
4094                activity == null ? null : activity.xmppConnectionService;
4095        if (service == null) {
4096            return;
4097        }
4098        final Account.State status = conversation.getAccount().getStatus();
4099        if (status == Account.State.ONLINE
4100                && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
4101            service.sendChatState(conversation);
4102        }
4103        runOnUiThread(this::updateSendButton);
4104    }
4105
4106    @Override
4107    public void onTypingStopped() {
4108        final XmppConnectionService service =
4109                activity == null ? null : activity.xmppConnectionService;
4110        if (service == null) {
4111            return;
4112        }
4113        final Account.State status = conversation.getAccount().getStatus();
4114        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
4115            service.sendChatState(conversation);
4116        }
4117    }
4118
4119    @Override
4120    public void onTextDeleted() {
4121        final XmppConnectionService service =
4122                activity == null ? null : activity.xmppConnectionService;
4123        if (service == null) {
4124            return;
4125        }
4126        final Account.State status = conversation.getAccount().getStatus();
4127        if (status == Account.State.ONLINE
4128                && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
4129            service.sendChatState(conversation);
4130        }
4131        if (storeNextMessage()) {
4132            runOnUiThread(
4133                    () -> {
4134                        if (activity == null) {
4135                            return;
4136                        }
4137                        activity.onConversationsListItemUpdated();
4138                    });
4139        }
4140        runOnUiThread(this::updateSendButton);
4141    }
4142
4143    @Override
4144    public void onTextChanged() {
4145        if (conversation != null && conversation.getCorrectingMessage() != null) {
4146            runOnUiThread(this::updateSendButton);
4147        }
4148    }
4149
4150    @Override
4151    public boolean onTabPressed(boolean repeated) {
4152        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
4153            return false;
4154        }
4155        if (repeated) {
4156            completionIndex++;
4157        } else {
4158            lastCompletionLength = 0;
4159            completionIndex = 0;
4160            final String content = this.binding.textinput.getText().toString();
4161            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
4162            int start =
4163                    lastCompletionCursor > 0
4164                            ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1
4165                            : 0;
4166            firstWord = start == 0;
4167            incomplete = content.substring(start, lastCompletionCursor);
4168        }
4169        List<String> completions = new ArrayList<>();
4170        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
4171            String name = user.getNick();
4172            if (name != null && name.startsWith(incomplete)) {
4173                completions.add(name + (firstWord ? ": " : " "));
4174            }
4175        }
4176        Collections.sort(completions);
4177        if (completions.size() > completionIndex) {
4178            String completion = completions.get(completionIndex).substring(incomplete.length());
4179            this.binding
4180                    .textinput
4181                    .getEditableText()
4182                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
4183            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
4184            lastCompletionLength = completion.length();
4185        } else {
4186            completionIndex = -1;
4187            this.binding
4188                    .textinput
4189                    .getEditableText()
4190                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
4191            lastCompletionLength = 0;
4192        }
4193        return true;
4194    }
4195
4196    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
4197        try {
4198            getActivity()
4199                    .startIntentSenderForResult(
4200                            pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0, Compatibility.pgpStartIntentSenderOptions());
4201        } catch (final SendIntentException ignored) {
4202        }
4203    }
4204
4205    @Override
4206    public void onBackendConnected() {
4207        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
4208        setupEmojiSearch();
4209        String uuid = pendingConversationsUuid.pop();
4210        if (uuid != null) {
4211            if (!findAndReInitByUuidOrArchive(uuid)) {
4212                return;
4213            }
4214        } else {
4215            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
4216                clearPending();
4217                activity.onConversationArchived(conversation);
4218                return;
4219            }
4220        }
4221        ActivityResult activityResult = postponedActivityResult.pop();
4222        if (activityResult != null) {
4223            handleActivityResult(activityResult);
4224        }
4225        clearPending();
4226    }
4227
4228    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
4229        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
4230        if (conversation == null) {
4231            clearPending();
4232            activity.onConversationArchived(null);
4233            return false;
4234        }
4235        reInit(conversation);
4236        ScrollState scrollState = pendingScrollState.pop();
4237        String lastMessageUuid = pendingLastMessageUuid.pop();
4238        List<Attachment> attachments = pendingMediaPreviews.pop();
4239        if (scrollState != null) {
4240            setScrollPosition(scrollState, lastMessageUuid);
4241        }
4242        if (attachments != null && attachments.size() > 0) {
4243            Log.d(Config.LOGTAG, "had attachments on restore");
4244            mediaPreviewAdapter.addMediaPreviews(attachments);
4245            toggleInputMethod();
4246        }
4247        return true;
4248    }
4249
4250    private void clearPending() {
4251        if (postponedActivityResult.clear()) {
4252            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
4253            if (pendingTakePhotoUri.clear()) {
4254                Log.e(Config.LOGTAG, "cleared pending photo uri");
4255            }
4256        }
4257        if (pendingScrollState.clear()) {
4258            Log.e(Config.LOGTAG, "cleared scroll state");
4259        }
4260        if (pendingConversationsUuid.clear()) {
4261            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
4262        }
4263        if (pendingMediaPreviews.clear()) {
4264            Log.e(Config.LOGTAG, "cleared pending media previews");
4265        }
4266    }
4267
4268    public Conversation getConversation() {
4269        return conversation;
4270    }
4271
4272    @Override
4273    public void onContactPictureLongClicked(View v, final Message message) {
4274        final String fingerprint;
4275        if (message.getEncryption() == Message.ENCRYPTION_PGP
4276                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
4277            fingerprint = "pgp";
4278        } else {
4279            fingerprint = message.getFingerprint();
4280        }
4281        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
4282        final Contact contact = message.getContact();
4283        if (message.getStatus() <= Message.STATUS_RECEIVED
4284                && (contact == null || !contact.isSelf())) {
4285            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
4286                final Jid cp = message.getCounterpart();
4287                if (cp == null || cp.isBareJid()) {
4288                    return;
4289                }
4290                final Jid tcp = message.getTrueCounterpart();
4291                final User userByRealJid =
4292                        tcp != null
4293                                ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp)
4294                                : null;
4295                final User user =
4296                        userByRealJid != null
4297                                ? userByRealJid
4298                                : conversation.getMucOptions().findUserByFullJid(cp);
4299                if (user == null) return;
4300                popupMenu.inflate(R.menu.muc_details_context);
4301                final Menu menu = popupMenu.getMenu();
4302                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(
4303                        activity, menu, conversation, user);
4304                popupMenu.setOnMenuItemClickListener(
4305                        menuItem ->
4306                                MucDetailsContextMenuHelper.onContextItemSelected(
4307                                        menuItem, user, activity, fingerprint));
4308            } else {
4309                popupMenu.inflate(R.menu.one_on_one_context);
4310                popupMenu.setOnMenuItemClickListener(
4311                        item -> {
4312                            switch (item.getItemId()) {
4313                                case R.id.action_contact_details:
4314                                    activity.switchToContactDetails(
4315                                            message.getContact(), fingerprint);
4316                                    break;
4317                                case R.id.action_show_qr_code:
4318                                    activity.showQrCode(
4319                                            "xmpp:"
4320                                                    + message.getContact()
4321                                                            .getJid()
4322                                                            .asBareJid()
4323                                                            .toEscapedString());
4324                                    break;
4325                            }
4326                            return true;
4327                        });
4328            }
4329        } else {
4330            popupMenu.inflate(R.menu.account_context);
4331            final Menu menu = popupMenu.getMenu();
4332            menu.findItem(R.id.action_manage_accounts)
4333                    .setVisible(QuickConversationsService.isConversations());
4334            popupMenu.setOnMenuItemClickListener(
4335                    item -> {
4336                        final XmppActivity activity = this.activity;
4337                        if (activity == null) {
4338                            Log.e(Config.LOGTAG, "Unable to perform action. no context provided");
4339                            return true;
4340                        }
4341                        switch (item.getItemId()) {
4342                            case R.id.action_show_qr_code:
4343                                activity.showQrCode(conversation.getAccount().getShareableUri());
4344                                break;
4345                            case R.id.action_account_details:
4346                                activity.switchToAccount(
4347                                        message.getConversation().getAccount(), fingerprint);
4348                                break;
4349                            case R.id.action_manage_accounts:
4350                                AccountUtils.launchManageAccounts(activity);
4351                                break;
4352                        }
4353                        return true;
4354                    });
4355        }
4356        popupMenu.show();
4357    }
4358
4359    @Override
4360    public void onContactPictureClicked(Message message) {
4361        setThread(message.getThread());
4362        if (message.isPrivateMessage()) {
4363            privateMessageWith(message.getCounterpart());
4364            return;
4365        }
4366        forkNullThread(message);
4367        conversation.setUserSelectedThread(true);
4368
4369        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
4370        if (received) {
4371            if (message.getConversation() instanceof Conversation
4372                    && message.getConversation().getMode() == Conversation.MODE_MULTI) {
4373                Jid tcp = message.getTrueCounterpart();
4374                Jid user = message.getCounterpart();
4375                if (user != null && !user.isBareJid()) {
4376                    final MucOptions mucOptions =
4377                            ((Conversation) message.getConversation()).getMucOptions();
4378                    if (mucOptions.participating()
4379                            || ((Conversation) message.getConversation()).getNextCounterpart()
4380                                    != null) {
4381                        MucOptions.User mucUser = mucOptions.findUserByFullJid(user);
4382                        MucOptions.User tcpMucUser = mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid());
4383                        if (mucUser == null && tcpMucUser == null) {
4384                            Toast.makeText(
4385                                            getActivity(),
4386                                            activity.getString(
4387                                                    R.string.user_has_left_conference,
4388                                                    user.getResource()),
4389                                            Toast.LENGTH_SHORT)
4390                                    .show();
4391                        }
4392                        highlightInConference(mucUser == null || mucUser.getNick() == null ? (tcpMucUser == null || tcpMucUser.getNick() == null ? user.getResource() : tcpMucUser.getNick()) : mucUser.getNick());
4393                    } else {
4394                        Toast.makeText(
4395                                        getActivity(),
4396                                        R.string.you_are_not_participating,
4397                                        Toast.LENGTH_SHORT)
4398                                .show();
4399                    }
4400                }
4401            }
4402        }
4403    }
4404
4405    private Activity requireActivity() {
4406        final Activity activity = getActivity();
4407        if (activity == null) {
4408            throw new IllegalStateException("Activity not attached");
4409        }
4410        return activity;
4411    }
4412}