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