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            MenuItem openWith = menu.findItem(R.id.open_with);
1657            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1658            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1659            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1660            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1661            MenuItem retractMessage = menu.findItem(R.id.retract_message);
1662            MenuItem moderateMessage = menu.findItem(R.id.moderate_message);
1663            MenuItem onlyThisThread = menu.findItem(R.id.only_this_thread);
1664            MenuItem shareWith = menu.findItem(R.id.share_with);
1665            MenuItem sendAgain = menu.findItem(R.id.send_again);
1666            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1667            MenuItem saveAsSticker = menu.findItem(R.id.save_as_sticker);
1668            MenuItem downloadFile = menu.findItem(R.id.download_file);
1669            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1670            MenuItem blockMedia = menu.findItem(R.id.block_media);
1671            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1672            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1673            onlyThisThread.setVisible(!conversation.getLockThread() && m.getThread() != null);
1674            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1675            final boolean showError =
1676                    m.getStatus() == Message.STATUS_SEND_FAILED
1677                            && m.getErrorMessage() != null
1678                            && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1679            if (!encrypted && !m.getBody().equals("")) {
1680                copyMessage.setVisible(true);
1681            }
1682            quoteMessage.setVisible(!encrypted && !showError);
1683            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1684                retryDecryption.setVisible(true);
1685            }
1686            if (!showError
1687                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1688                    && !m.isGeoUri()
1689                    && relevantForCorrection.isLastCorrectableMessage()
1690                    && m.getConversation() instanceof Conversation) {
1691                correctMessage.setVisible(true);
1692                if (!relevantForCorrection.getBody().equals("") && !relevantForCorrection.getBody().equals(" ")) retractMessage.setVisible(true);
1693            }
1694            if (relevantForCorrection.getReactions() != null) {
1695                correctMessage.setVisible(false);
1696                retractMessage.setVisible(true);
1697            }
1698            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")) {
1699                moderateMessage.setVisible(true);
1700            }
1701            if ((m.isFileOrImage() && !deleted && !receiving)
1702                    || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())
1703                            && !unInitiatedButKnownSize
1704                            && t == null) {
1705                shareWith.setVisible(true);
1706            }
1707            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1708                sendAgain.setVisible(true);
1709            }
1710            if (m.hasFileOnRemoteHost()
1711                    || m.isGeoUri()
1712                    || m.treatAsDownloadable()
1713                    || unInitiatedButKnownSize
1714                    || t instanceof HttpDownloadConnection) {
1715                copyUrl.setVisible(true);
1716            }
1717            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1718                downloadFile.setVisible(true);
1719                downloadFile.setTitle(
1720                        activity.getString(
1721                                R.string.download_x_file,
1722                                UIHelper.getFileDescriptionString(activity, m)));
1723            }
1724            final boolean waitingOfferedSending =
1725                    m.getStatus() == Message.STATUS_WAITING
1726                            || m.getStatus() == Message.STATUS_UNSEND
1727                            || m.getStatus() == Message.STATUS_OFFERED;
1728            final boolean cancelable =
1729                    (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1730            if (cancelable) {
1731                cancelTransmission.setVisible(true);
1732            }
1733            if (m.isFileOrImage() && !deleted && !cancelable) {
1734                final String path = m.getRelativeFilePath();
1735                if (path == null
1736                        || !path.startsWith("/")
1737                        || FileBackend.inConversationsDirectory(requireActivity(), path)) {
1738                    saveAsSticker.setVisible(true);
1739                    blockMedia.setVisible(true);
1740                    deleteFile.setVisible(true);
1741                    deleteFile.setTitle(
1742                            activity.getString(
1743                                    R.string.delete_x_file,
1744                                    UIHelper.getFileDescriptionString(activity, m)));
1745                }
1746            }
1747
1748            if (m.getFileParams() != null && !m.getFileParams().getThumbnails().isEmpty()) {
1749                // We might be showing a thumbnail worth blocking
1750                blockMedia.setVisible(true);
1751            }
1752            if (showError) {
1753                showErrorMessage.setVisible(true);
1754            }
1755            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1756            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m))
1757                    || (mime != null && mime.startsWith("audio/"))) {
1758                openWith.setVisible(true);
1759            }
1760        }
1761    }
1762
1763    @Override
1764    public boolean onContextItemSelected(MenuItem item) {
1765        switch (item.getItemId()) {
1766            case R.id.share_with:
1767                ShareUtil.share(activity, selectedMessage);
1768                return true;
1769            case R.id.correct_message:
1770                correctMessage(selectedMessage);
1771                return true;
1772            case R.id.retract_message:
1773                new AlertDialog.Builder(activity)
1774                    .setTitle(R.string.retract_message)
1775                    .setMessage("Do you really want to retract this message?")
1776                    .setPositiveButton(R.string.yes, (dialog, whichButton) -> {
1777                        Message message = selectedMessage;
1778                        while (message.mergeable(message.next())) {
1779                            message = message.next();
1780                        }
1781                        Element reactions = message.getReactions();
1782                        if (reactions != null) {
1783                            final Message previousReaction = conversation.findMessageReactingTo(reactions.getAttribute("id"), null);
1784                            if (previousReaction != null) reactions = previousReaction.getReactions();
1785                            for (Element el : reactions.getChildren()) {
1786                                if (message.getQuoteableBody().endsWith(el.getContent())) {
1787                                    reactions.removeChild(el);
1788                                }
1789                            }
1790                            message.setReactions(reactions);
1791                            if (previousReaction != null) {
1792                                previousReaction.setReactions(reactions);
1793                                activity.xmppConnectionService.updateMessage(previousReaction);
1794                            }
1795                        }
1796                        message.setBody(" ");
1797                        message.putEdited(message.getUuid(), message.getServerMsgId());
1798                        message.setServerMsgId(null);
1799                        message.setUuid(UUID.randomUUID().toString());
1800                        sendMessage(message);
1801                    })
1802                    .setNegativeButton(R.string.no, null).show();
1803                return true;
1804            case R.id.moderate_message:
1805                activity.quickEdit("Spam", (reason) -> {
1806                    Message message = selectedMessage;
1807                    do {
1808                        activity.xmppConnectionService.moderateMessage(conversation.getAccount(), message, reason);
1809                        message = message.mergeable(message.next()) ? message.next() : null;
1810                    } while (message != null);
1811                    return null;
1812                }, R.string.moderate_reason, false, false, true);
1813                return true;
1814            case R.id.copy_message:
1815                ShareUtil.copyToClipboard(activity, selectedMessage);
1816                return true;
1817            case R.id.quote_message:
1818                quoteMessage(selectedMessage);
1819                return true;
1820            case R.id.send_again:
1821                resendMessage(selectedMessage);
1822                return true;
1823            case R.id.copy_url:
1824                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1825                return true;
1826            case R.id.save_as_sticker:
1827                saveAsSticker(selectedMessage);
1828                return true;
1829            case R.id.download_file:
1830                startDownloadable(selectedMessage);
1831                return true;
1832            case R.id.cancel_transmission:
1833                cancelTransmission(selectedMessage);
1834                return true;
1835            case R.id.retry_decryption:
1836                retryDecryption(selectedMessage);
1837                return true;
1838            case R.id.block_media:
1839                new AlertDialog.Builder(activity)
1840                    .setTitle(R.string.block_media)
1841                    .setMessage("Do you really want to block this media in all messages?")
1842                    .setPositiveButton(R.string.yes, (dialog, whichButton) -> {
1843                        List<Element> thumbs = selectedMessage.getFileParams() != null ? selectedMessage.getFileParams().getThumbnails() : null;
1844                        if (thumbs != null && !thumbs.isEmpty()) {
1845                            for (Element thumb : thumbs) {
1846                                Uri uri = Uri.parse(thumb.getAttribute("uri"));
1847                                if (uri.getScheme().equals("cid")) {
1848                                    Cid cid = BobTransfer.cid(uri);
1849                                    if (cid == null) continue;
1850                                    DownloadableFile f = activity.xmppConnectionService.getFileForCid(cid);
1851                                    activity.xmppConnectionService.blockMedia(f);
1852                                    activity.xmppConnectionService.evictPreview(f);
1853                                    f.delete();
1854                                }
1855                            }
1856                        }
1857                        File f = activity.xmppConnectionService.getFileBackend().getFile(selectedMessage);
1858                        activity.xmppConnectionService.blockMedia(f);
1859                        activity.xmppConnectionService.getFileBackend().deleteFile(selectedMessage);
1860                        activity.xmppConnectionService.evictPreview(f);
1861                        activity.xmppConnectionService.updateMessage(selectedMessage, false);
1862                        activity.onConversationsListItemUpdated();
1863                        refresh();
1864                    })
1865                    .setNegativeButton(R.string.no, null).show();
1866                return true;
1867            case R.id.delete_file:
1868                deleteFile(selectedMessage);
1869                return true;
1870            case R.id.show_error_message:
1871                showErrorMessage(selectedMessage);
1872                return true;
1873            case R.id.open_with:
1874                openWith(selectedMessage);
1875                return true;
1876            case R.id.only_this_thread:
1877                conversation.setLockThread(true);
1878                backPressedLeaveSingleThread.setEnabled(true);
1879                setThread(selectedMessage.getThread());
1880                refresh();
1881                return true;
1882            default:
1883                return onOptionsItemSelected(item);
1884        }
1885    }
1886
1887    @Override
1888    public boolean onOptionsItemSelected(final MenuItem item) {
1889        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1890            return false;
1891        } else if (conversation == null) {
1892            return super.onOptionsItemSelected(item);
1893        }
1894        switch (item.getItemId()) {
1895            case R.id.encryption_choice_axolotl:
1896            case R.id.encryption_choice_pgp:
1897            case R.id.encryption_choice_none:
1898                handleEncryptionSelection(item);
1899                break;
1900            case R.id.attach_choose_picture:
1901            case R.id.attach_take_picture:
1902            case R.id.attach_record_video:
1903            case R.id.attach_choose_file:
1904            case R.id.attach_record_voice:
1905            case R.id.attach_location:
1906                handleAttachmentSelection(item);
1907                break;
1908            case R.id.action_search:
1909                startSearch();
1910                break;
1911            case R.id.action_archive:
1912                activity.xmppConnectionService.archiveConversation(conversation);
1913                break;
1914            case R.id.action_contact_details:
1915                activity.switchToContactDetails(conversation.getContact());
1916                break;
1917            case R.id.action_muc_details:
1918                ConferenceDetailsActivity.open(activity, conversation);
1919                break;
1920            case R.id.action_invite:
1921                startActivityForResult(
1922                        ChooseContactActivity.create(activity, conversation),
1923                        REQUEST_INVITE_TO_CONVERSATION);
1924                break;
1925            case R.id.action_clear_history:
1926                clearHistoryDialog(conversation);
1927                break;
1928            case R.id.action_mute:
1929                muteConversationDialog(conversation);
1930                break;
1931            case R.id.action_unmute:
1932                unMuteConversation(conversation);
1933                break;
1934            case R.id.action_block:
1935            case R.id.action_unblock:
1936                final Activity activity = getActivity();
1937                if (activity instanceof XmppActivity) {
1938                    BlockContactDialog.show((XmppActivity) activity, conversation);
1939                }
1940                break;
1941            case R.id.action_audio_call:
1942                checkPermissionAndTriggerAudioCall();
1943                break;
1944            case R.id.action_video_call:
1945                checkPermissionAndTriggerVideoCall();
1946                break;
1947            case R.id.action_ongoing_call:
1948                returnToOngoingCall();
1949                break;
1950            case R.id.action_toggle_pinned:
1951                togglePinned();
1952                break;
1953            case R.id.action_add_shortcut:
1954                addShortcut();
1955                break;
1956            case R.id.action_refresh_feature_discovery:
1957                refreshFeatureDiscovery();
1958                break;
1959            default:
1960                break;
1961        }
1962        return super.onOptionsItemSelected(item);
1963    }
1964
1965    public boolean onBackPressed() {
1966        boolean wasLocked = conversation.getLockThread();
1967        conversation.setLockThread(false);
1968        backPressedLeaveSingleThread.setEnabled(false);
1969        if (wasLocked) {
1970            setThread(null);
1971            conversation.setUserSelectedThread(false);
1972            refresh();
1973            updateThreadFromLastMessage();
1974            return true;
1975        }
1976        return false;
1977    }
1978
1979    private void startSearch() {
1980        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1981        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1982        startActivity(intent);
1983    }
1984
1985    private void returnToOngoingCall() {
1986        final Optional<OngoingRtpSession> ongoingRtpSession =
1987                activity.xmppConnectionService
1988                        .getJingleConnectionManager()
1989                        .getOngoingRtpConnection(conversation.getContact());
1990        if (ongoingRtpSession.isPresent()) {
1991            final OngoingRtpSession id = ongoingRtpSession.get();
1992            final Intent intent = new Intent(activity, RtpSessionActivity.class);
1993            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1994            intent.putExtra(
1995                    RtpSessionActivity.EXTRA_ACCOUNT,
1996                    id.getAccount().getJid().asBareJid().toEscapedString());
1997            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1998            if (id instanceof AbstractJingleConnection.Id) {
1999                intent.setAction(Intent.ACTION_VIEW);
2000                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
2001            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
2002                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
2003                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
2004                } else {
2005                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
2006                }
2007            }
2008            activity.startActivity(intent);
2009        }
2010    }
2011
2012    private void refreshFeatureDiscovery() {
2013        Set<Map.Entry<String, Presence>> presences = conversation.getContact().getPresences().getPresencesMap().entrySet();
2014        if (presences.isEmpty()) {
2015            presences = new HashSet<>();
2016            presences.add(new AbstractMap.SimpleEntry("", null));
2017        }
2018        for (Map.Entry<String, Presence> entry : presences) {
2019            Jid jid = conversation.getContact().getJid();
2020            if (!entry.getKey().equals("")) jid = jid.withResource(entry.getKey());
2021            activity.xmppConnectionService.fetchCaps(conversation.getAccount(), jid, entry.getValue(), () -> {
2022                if (activity == null) return;
2023                activity.runOnUiThread(() -> {
2024                    refresh();
2025                    refreshCommands(true);
2026                });
2027            });
2028        }
2029    }
2030
2031    private void addShortcut() {
2032        ShortcutInfoCompat info;
2033        if (conversation.getMode() == Conversation.MODE_MULTI) {
2034            info = activity.xmppConnectionService.getShortcutService().getShortcutInfoCompat(conversation.getMucOptions());
2035        } else {
2036            info = activity.xmppConnectionService.getShortcutService().getShortcutInfoCompat(conversation.getContact());
2037        }
2038        ShortcutManagerCompat.requestPinShortcut(activity, info, null);
2039    }
2040
2041    private void togglePinned() {
2042        final boolean pinned =
2043                conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
2044        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
2045        activity.xmppConnectionService.updateConversation(conversation);
2046        activity.invalidateOptionsMenu();
2047    }
2048
2049    private void checkPermissionAndTriggerAudioCall() {
2050        if (activity.mUseTor || conversation.getAccount().isOnion()) {
2051            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
2052            return;
2053        }
2054        final List<String> permissions;
2055        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
2056            permissions =
2057                    Arrays.asList(
2058                            Manifest.permission.RECORD_AUDIO,
2059                            Manifest.permission.BLUETOOTH_CONNECT);
2060        } else {
2061            permissions = Collections.singletonList(Manifest.permission.RECORD_AUDIO);
2062        }
2063        if (hasPermissions(REQUEST_START_AUDIO_CALL, permissions)) {
2064            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
2065        }
2066    }
2067
2068    private void checkPermissionAndTriggerVideoCall() {
2069        if (activity.mUseTor || conversation.getAccount().isOnion()) {
2070            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
2071            return;
2072        }
2073        final List<String> permissions;
2074        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
2075            permissions =
2076                    Arrays.asList(
2077                            Manifest.permission.RECORD_AUDIO,
2078                            Manifest.permission.CAMERA,
2079                            Manifest.permission.BLUETOOTH_CONNECT);
2080        } else {
2081            permissions =
2082                    Arrays.asList(Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA);
2083        }
2084        if (hasPermissions(REQUEST_START_VIDEO_CALL, permissions)) {
2085            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
2086        }
2087    }
2088
2089    private void triggerRtpSession(final String action) {
2090        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy() != null) {
2091            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG)
2092                    .show();
2093            return;
2094        }
2095        final Account account = conversation.getAccount();
2096        if (account.setOption(Account.OPTION_SOFT_DISABLED, false)) {
2097            activity.xmppConnectionService.updateAccount(account);
2098        }
2099        final Contact contact = conversation.getContact();
2100        if (RtpCapability.jmiSupport(contact)) {
2101            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
2102        } else {
2103            final RtpCapability.Capability capability;
2104            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
2105                capability = RtpCapability.Capability.VIDEO;
2106            } else {
2107                capability = RtpCapability.Capability.AUDIO;
2108            }
2109            PresenceSelector.selectFullJidForDirectRtpConnection(
2110                    activity,
2111                    contact,
2112                    capability,
2113                    fullJid -> {
2114                        triggerRtpSession(contact.getAccount(), fullJid, action);
2115                    });
2116        }
2117    }
2118
2119    private void triggerRtpSession(final Account account, final Jid with, final String action) {
2120        final Intent intent = new Intent(activity, RtpSessionActivity.class);
2121        intent.setAction(action);
2122        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
2123        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
2124        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2125        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
2126        startActivity(intent);
2127    }
2128
2129    private void handleAttachmentSelection(MenuItem item) {
2130        switch (item.getItemId()) {
2131            case R.id.attach_choose_picture:
2132                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
2133                break;
2134            case R.id.attach_take_picture:
2135                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
2136                break;
2137            case R.id.attach_record_video:
2138                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
2139                break;
2140            case R.id.attach_choose_file:
2141                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
2142                break;
2143            case R.id.attach_record_voice:
2144                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
2145                break;
2146            case R.id.attach_location:
2147                attachFile(ATTACHMENT_CHOICE_LOCATION);
2148                break;
2149        }
2150    }
2151
2152    private void handleEncryptionSelection(MenuItem item) {
2153        if (conversation == null) {
2154            return;
2155        }
2156        final boolean updated;
2157        switch (item.getItemId()) {
2158            case R.id.encryption_choice_none:
2159                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2160                item.setChecked(true);
2161                break;
2162            case R.id.encryption_choice_pgp:
2163                if (activity.hasPgp()) {
2164                    if (conversation.getAccount().getPgpSignature() != null) {
2165                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
2166                        item.setChecked(true);
2167                    } else {
2168                        updated = false;
2169                        activity.announcePgp(
2170                                conversation.getAccount(),
2171                                conversation,
2172                                null,
2173                                activity.onOpenPGPKeyPublished);
2174                    }
2175                } else {
2176                    activity.showInstallPgpDialog();
2177                    updated = false;
2178                }
2179                break;
2180            case R.id.encryption_choice_axolotl:
2181                Log.d(
2182                        Config.LOGTAG,
2183                        AxolotlService.getLogprefix(conversation.getAccount())
2184                                + "Enabled axolotl for Contact "
2185                                + conversation.getContact().getJid());
2186                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
2187                item.setChecked(true);
2188                break;
2189            default:
2190                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2191                break;
2192        }
2193        if (updated) {
2194            activity.xmppConnectionService.updateConversation(conversation);
2195        }
2196        updateChatMsgHint();
2197        getActivity().invalidateOptionsMenu();
2198        activity.refreshUi();
2199    }
2200
2201    public void attachFile(final int attachmentChoice) {
2202        attachFile(attachmentChoice, true);
2203    }
2204
2205    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
2206        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
2207            if (!hasPermissions(
2208                    attachmentChoice,
2209                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
2210                    Manifest.permission.RECORD_AUDIO)) {
2211                return;
2212            }
2213        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO
2214                || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
2215            if (!hasPermissions(
2216                    attachmentChoice,
2217                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
2218                    Manifest.permission.CAMERA)) {
2219                return;
2220            }
2221        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
2222            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2223                return;
2224            }
2225        }
2226        if (updateRecentlyUsed) {
2227            storeRecentlyUsedQuickAction(attachmentChoice);
2228        }
2229        final int encryption = conversation.getNextEncryption();
2230        final int mode = conversation.getMode();
2231        if (encryption == Message.ENCRYPTION_PGP) {
2232            if (activity.hasPgp()) {
2233                if (mode == Conversation.MODE_SINGLE
2234                        && conversation.getContact().getPgpKeyId() != 0) {
2235                    activity.xmppConnectionService
2236                            .getPgpEngine()
2237                            .hasKey(
2238                                    conversation.getContact(),
2239                                    new UiCallback<Contact>() {
2240
2241                                        @Override
2242                                        public void userInputRequired(
2243                                                PendingIntent pi, Contact contact) {
2244                                            startPendingIntent(pi, attachmentChoice);
2245                                        }
2246
2247                                        @Override
2248                                        public void success(Contact contact) {
2249                                            invokeAttachFileIntent(attachmentChoice);
2250                                        }
2251
2252                                        @Override
2253                                        public void error(int error, Contact contact) {
2254                                            activity.replaceToast(getString(error));
2255                                        }
2256                                    });
2257                } else if (mode == Conversation.MODE_MULTI
2258                        && conversation.getMucOptions().pgpKeysInUse()) {
2259                    if (!conversation.getMucOptions().everybodyHasKeys()) {
2260                        Toast warning =
2261                                Toast.makeText(
2262                                        getActivity(),
2263                                        R.string.missing_public_keys,
2264                                        Toast.LENGTH_LONG);
2265                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2266                        warning.show();
2267                    }
2268                    invokeAttachFileIntent(attachmentChoice);
2269                } else {
2270                    showNoPGPKeyDialog(
2271                            false,
2272                            (dialog, which) -> {
2273                                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2274                                activity.xmppConnectionService.updateConversation(conversation);
2275                                invokeAttachFileIntent(attachmentChoice);
2276                            });
2277                }
2278            } else {
2279                activity.showInstallPgpDialog();
2280            }
2281        } else {
2282            invokeAttachFileIntent(attachmentChoice);
2283        }
2284    }
2285
2286    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
2287        try {
2288            activity.getPreferences()
2289                    .edit()
2290                    .putString(
2291                            RECENTLY_USED_QUICK_ACTION,
2292                            SendButtonAction.of(attachmentChoice).toString())
2293                    .apply();
2294        } catch (IllegalArgumentException e) {
2295            // just do not save
2296        }
2297    }
2298
2299    @Override
2300    public void onRequestPermissionsResult(
2301            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
2302        final PermissionUtils.PermissionResult permissionResult =
2303                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
2304        if (grantResults.length > 0) {
2305            if (allGranted(permissionResult.grantResults)) {
2306                switch (requestCode) {
2307                    case REQUEST_START_DOWNLOAD:
2308                        if (this.mPendingDownloadableMessage != null) {
2309                            startDownloadable(this.mPendingDownloadableMessage);
2310                        }
2311                        break;
2312                    case REQUEST_ADD_EDITOR_CONTENT:
2313                        if (this.mPendingEditorContent != null) {
2314                            attachEditorContentToConversation(this.mPendingEditorContent);
2315                        }
2316                        break;
2317                    case REQUEST_COMMIT_ATTACHMENTS:
2318                        commitAttachments();
2319                        break;
2320                    case REQUEST_START_AUDIO_CALL:
2321                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
2322                        break;
2323                    case REQUEST_START_VIDEO_CALL:
2324                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
2325                        break;
2326                    default:
2327                        attachFile(requestCode);
2328                        break;
2329                }
2330            } else {
2331                @StringRes int res;
2332                String firstDenied =
2333                        getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
2334                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
2335                    res = R.string.no_microphone_permission;
2336                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
2337                    res = R.string.no_camera_permission;
2338                } else {
2339                    res = R.string.no_storage_permission;
2340                }
2341                Toast.makeText(
2342                                getActivity(),
2343                                getString(res, getString(R.string.app_name)),
2344                                Toast.LENGTH_SHORT)
2345                        .show();
2346            }
2347        }
2348        if (writeGranted(grantResults, permissions)) {
2349            if (activity != null && activity.xmppConnectionService != null) {
2350                activity.xmppConnectionService.getDrawableCache().evictAll();
2351                activity.xmppConnectionService.restartFileObserver();
2352            }
2353            refresh();
2354        }
2355        if (cameraGranted(grantResults, permissions) || audioGranted(grantResults, permissions)) {
2356            XmppConnectionService.toggleForegroundService(activity);
2357        }
2358    }
2359
2360    public void startDownloadable(Message message) {
2361        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2362            this.mPendingDownloadableMessage = message;
2363            return;
2364        }
2365        Transferable transferable = message.getTransferable();
2366        if (transferable != null) {
2367            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
2368                createNewConnection(message);
2369                return;
2370            }
2371            if (!transferable.start()) {
2372                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
2373                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
2374                        .show();
2375            }
2376        } else if (message.treatAsDownloadable()
2377                || message.hasFileOnRemoteHost()
2378                || MessageUtils.unInitiatedButKnownSize(message)) {
2379            createNewConnection(message);
2380        } else {
2381            Log.d(
2382                    Config.LOGTAG,
2383                    message.getConversation().getAccount() + ": unable to start downloadable");
2384        }
2385    }
2386
2387    private void createNewConnection(final Message message) {
2388        if (!activity.xmppConnectionService.hasInternetConnection()) {
2389            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
2390                    .show();
2391            return;
2392        }
2393        if (message.getOob() != null && "cid".equalsIgnoreCase(message.getOob().getScheme())) {
2394            try {
2395                BobTransfer transfer = new BobTransfer.ForMessage(message, activity.xmppConnectionService);
2396                message.setTransferable(transfer);
2397                transfer.start();
2398            } catch (URISyntaxException e) {
2399                Log.d(Config.LOGTAG, "BobTransfer failed to parse URI");
2400            }
2401        } else {
2402            activity.xmppConnectionService
2403                    .getHttpConnectionManager()
2404                    .createNewDownloadConnection(message, true);
2405        }
2406    }
2407
2408    @SuppressLint("InflateParams")
2409    protected void clearHistoryDialog(final Conversation conversation) {
2410        final AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2411        builder.setTitle(getString(R.string.clear_conversation_history));
2412        final View dialogView =
2413                requireActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
2414        final CheckBox endConversationCheckBox =
2415                dialogView.findViewById(R.id.end_conversation_checkbox);
2416        builder.setView(dialogView);
2417        builder.setNegativeButton(getString(R.string.cancel), null);
2418        builder.setPositiveButton(
2419                getString(R.string.confirm),
2420                (dialog, which) -> {
2421                    this.activity.xmppConnectionService.clearConversationHistory(conversation);
2422                    if (endConversationCheckBox.isChecked()) {
2423                        this.activity.xmppConnectionService.archiveConversation(conversation);
2424                        this.activity.onConversationArchived(conversation);
2425                    } else {
2426                        activity.onConversationsListItemUpdated();
2427                        refresh();
2428                    }
2429                });
2430        builder.create().show();
2431    }
2432
2433    protected void muteConversationDialog(final Conversation conversation) {
2434        final AlertDialog.Builder builder = new AlertDialog.Builder(activity);
2435        builder.setTitle(R.string.disable_notifications);
2436        final int[] durations = activity.getResources().getIntArray(R.array.mute_options_durations);
2437        final CharSequence[] labels = new CharSequence[durations.length];
2438        for (int i = 0; i < durations.length; ++i) {
2439            if (durations[i] == -1) {
2440                labels[i] = activity.getString(R.string.until_further_notice);
2441            } else {
2442                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
2443            }
2444        }
2445        builder.setItems(
2446                labels,
2447                (dialog, which) -> {
2448                    final long till;
2449                    if (durations[which] == -1) {
2450                        till = Long.MAX_VALUE;
2451                    } else {
2452                        till = System.currentTimeMillis() + (durations[which] * 1000L);
2453                    }
2454                    conversation.setMutedTill(till);
2455                    activity.xmppConnectionService.updateConversation(conversation);
2456                    activity.onConversationsListItemUpdated();
2457                    refresh();
2458                    activity.invalidateOptionsMenu();
2459                });
2460        builder.create().show();
2461    }
2462
2463    private boolean hasPermissions(int requestCode, List<String> permissions) {
2464        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
2465            final List<String> missingPermissions = new ArrayList<>();
2466            for (String permission : permissions) {
2467                if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU || Config.ONLY_INTERNAL_STORAGE) && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2468                    continue;
2469                }
2470                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
2471                    missingPermissions.add(permission);
2472                }
2473            }
2474            if (missingPermissions.size() == 0) {
2475                return true;
2476            } else {
2477                requestPermissions(
2478                        missingPermissions.toArray(new String[0]),
2479                        requestCode);
2480                return false;
2481            }
2482        } else {
2483            return true;
2484        }
2485    }
2486
2487    private boolean hasPermissions(int requestCode, String... permissions) {
2488        return hasPermissions(requestCode, ImmutableList.copyOf(permissions));
2489    }
2490
2491    public void unMuteConversation(final Conversation conversation) {
2492        conversation.setMutedTill(0);
2493        this.activity.xmppConnectionService.updateConversation(conversation);
2494        this.activity.onConversationsListItemUpdated();
2495        refresh();
2496        this.activity.invalidateOptionsMenu();
2497    }
2498
2499    protected void invokeAttachFileIntent(final int attachmentChoice) {
2500        Intent intent = new Intent();
2501        boolean chooser = false;
2502        switch (attachmentChoice) {
2503            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
2504                intent.setAction(Intent.ACTION_GET_CONTENT);
2505                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2506                intent.setType("image/*");
2507                chooser = true;
2508                break;
2509            case ATTACHMENT_CHOICE_RECORD_VIDEO:
2510                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
2511                break;
2512            case ATTACHMENT_CHOICE_TAKE_PHOTO:
2513                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
2514                pendingTakePhotoUri.push(uri);
2515                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
2516                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
2517                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
2518                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
2519                break;
2520            case ATTACHMENT_CHOICE_CHOOSE_FILE:
2521                chooser = true;
2522                intent.setType("*/*");
2523                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2524                intent.addCategory(Intent.CATEGORY_OPENABLE);
2525                intent.setAction(Intent.ACTION_GET_CONTENT);
2526                break;
2527            case ATTACHMENT_CHOICE_RECORD_VOICE:
2528                intent = new Intent(getActivity(), RecordingActivity.class);
2529                break;
2530            case ATTACHMENT_CHOICE_LOCATION:
2531                intent = GeoHelper.getFetchIntent(activity);
2532                break;
2533        }
2534        final Context context = getActivity();
2535        if (context == null) {
2536            return;
2537        }
2538        try {
2539            if (chooser) {
2540                startActivityForResult(
2541                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
2542                        attachmentChoice);
2543            } else {
2544                startActivityForResult(intent, attachmentChoice);
2545            }
2546        } catch (final ActivityNotFoundException e) {
2547            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
2548        }
2549    }
2550
2551    @Override
2552    public void onResume() {
2553        super.onResume();
2554        binding.messagesView.post(this::fireReadEvent);
2555    }
2556
2557    private void fireReadEvent() {
2558        if (activity != null && this.conversation != null) {
2559            String uuid = getLastVisibleMessageUuid();
2560            if (uuid != null) {
2561                activity.onConversationRead(this.conversation, uuid);
2562            }
2563        }
2564    }
2565
2566    private void newSubThread() {
2567        Element oldThread = conversation.getThread();
2568        Element thread = new Element("thread", "jabber:client");
2569        thread.setContent(UUID.randomUUID().toString());
2570        if (oldThread != null) thread.setAttribute("parent", oldThread.getContent());
2571        setThread(thread);
2572    }
2573
2574    private void newThread() {
2575        Element thread = new Element("thread", "jabber:client");
2576        thread.setContent(UUID.randomUUID().toString());
2577        setThread(thread);
2578    }
2579
2580    private void updateThreadFromLastMessage() {
2581        if (this.conversation != null && !this.conversation.getUserSelectedThread() && TextUtils.isEmpty(binding.textinput.getText())) {
2582            Message message = getLastVisibleMessage();
2583            if (message == null) {
2584                newThread();
2585            } else {
2586                if (conversation.getMode() == Conversation.MODE_MULTI) {
2587                    if (activity == null || activity.xmppConnectionService == null) return;
2588                    if (message.getStatus() < Message.STATUS_SEND) {
2589                        if (!activity.xmppConnectionService.getBooleanPreference("follow_thread_in_channel", R.bool.follow_thread_in_channel)) return;
2590                    }
2591                }
2592
2593                setThread(message.getThread());
2594            }
2595        }
2596    }
2597
2598    private String getLastVisibleMessageUuid() {
2599        Message message =  getLastVisibleMessage();
2600        return message == null ? null : message.getUuid();
2601    }
2602
2603    private Message getLastVisibleMessage() {
2604        if (binding == null) {
2605            return null;
2606        }
2607        synchronized (this.messageList) {
2608            int pos = binding.messagesView.getLastVisiblePosition();
2609            if (pos >= 0) {
2610                Message message = null;
2611                for (int i = pos; i >= 0; --i) {
2612                    try {
2613                        message = (Message) binding.messagesView.getItemAtPosition(i);
2614                    } catch (IndexOutOfBoundsException e) {
2615                        // should not happen if we synchronize properly. however if that fails we
2616                        // just gonna try item -1
2617                        continue;
2618                    }
2619                    if (message.getType() != Message.TYPE_STATUS) {
2620                        break;
2621                    }
2622                }
2623                if (message != null) {
2624                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
2625                        message = message.next();
2626                    }
2627                    return message;
2628                }
2629            }
2630        }
2631        return null;
2632    }
2633
2634    private void openWith(final Message message) {
2635        if (message.isGeoUri()) {
2636            GeoHelper.view(getActivity(), message);
2637        } else {
2638            final DownloadableFile file =
2639                    activity.xmppConnectionService.getFileBackend().getFile(message);
2640            ViewUtil.view(activity, file);
2641        }
2642    }
2643
2644    private void showErrorMessage(final Message message) {
2645        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2646        builder.setTitle(R.string.error_message);
2647        final String errorMessage = message.getErrorMessage();
2648        final String[] errorMessageParts =
2649                errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
2650        final String displayError;
2651        if (errorMessageParts.length == 2) {
2652            displayError = errorMessageParts[1];
2653        } else {
2654            displayError = errorMessage;
2655        }
2656        builder.setMessage(displayError);
2657        builder.setNegativeButton(
2658                R.string.copy_to_clipboard,
2659                (dialog, which) -> {
2660                    activity.copyTextToClipboard(displayError, R.string.error_message);
2661                    Toast.makeText(
2662                                    activity,
2663                                    R.string.error_message_copied_to_clipboard,
2664                                    Toast.LENGTH_SHORT)
2665                            .show();
2666                });
2667        builder.setPositiveButton(R.string.confirm, null);
2668        builder.create().show();
2669    }
2670
2671    public boolean onInlineImageLongClicked(Cid cid) {
2672        DownloadableFile f = activity.xmppConnectionService.getFileForCid(cid);
2673        if (f == null) return false;
2674
2675        saveAsSticker(f, null);
2676        return true;
2677    }
2678
2679    private void saveAsSticker(final Message m) {
2680        String existingName = m.getFileParams() != null && m.getFileParams().getName() != null ? m.getFileParams().getName() : "";
2681        existingName = existingName.lastIndexOf(".") == -1 ? existingName : existingName.substring(0, existingName.lastIndexOf("."));
2682        saveAsSticker(activity.xmppConnectionService.getFileBackend().getFile(m), existingName);
2683    }
2684
2685    private void saveAsSticker(final File file, final String name) {
2686        savingAsSticker = file;
2687
2688        Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
2689        intent.addCategory(Intent.CATEGORY_OPENABLE);
2690        intent.setType(MimeUtils.guessMimeTypeFromUri(activity, activity.xmppConnectionService.getFileBackend().getUriForFile(activity, file)));
2691        intent.putExtra(Intent.EXTRA_TITLE, name);
2692
2693        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2694        final String dir = p.getString("sticker_directory", "Stickers");
2695        if (dir.startsWith("content://")) {
2696            intent.putExtra("android.provider.extra.INITIAL_URI", Uri.parse(dir));
2697        } else {
2698            new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/" + dir + "/User Pack").mkdirs();
2699            Uri uri;
2700            if (Build.VERSION.SDK_INT >= 29) {
2701                Intent tmp = ((StorageManager) activity.getSystemService(Context.STORAGE_SERVICE)).getPrimaryStorageVolume().createOpenDocumentTreeIntent();
2702                uri = tmp.getParcelableExtra("android.provider.extra.INITIAL_URI");
2703                uri = Uri.parse(uri.toString().replace("/root/", "/document/") + "%3APictures%2F" + dir);
2704            } else {
2705                uri = Uri.parse("content://com.android.externalstorage.documents/document/primary%3APictures%2F" + dir);
2706            }
2707            intent.putExtra("android.provider.extra.INITIAL_URI", uri);
2708            intent.putExtra("android.content.extra.SHOW_ADVANCED", true);
2709        }
2710
2711        Toast.makeText(activity, "Choose a sticker pack to add this sticker to", Toast.LENGTH_SHORT).show();
2712        startActivityForResult(Intent.createChooser(intent, "Choose sticker pack"), REQUEST_SAVE_STICKER);
2713    }
2714
2715    private void deleteFile(final Message message) {
2716        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2717        builder.setNegativeButton(R.string.cancel, null);
2718        builder.setTitle(R.string.delete_file_dialog);
2719        builder.setMessage(R.string.delete_file_dialog_msg);
2720        builder.setPositiveButton(
2721                R.string.confirm,
2722                (dialog, which) -> {
2723                    List<Element> thumbs = selectedMessage.getFileParams() != null ? selectedMessage.getFileParams().getThumbnails() : null;
2724                    if (thumbs != null && !thumbs.isEmpty()) {
2725                        for (Element thumb : thumbs) {
2726                            Uri uri = Uri.parse(thumb.getAttribute("uri"));
2727                            if (uri.getScheme().equals("cid")) {
2728                                Cid cid = BobTransfer.cid(uri);
2729                                if (cid == null) continue;
2730                                DownloadableFile f = activity.xmppConnectionService.getFileForCid(cid);
2731                                activity.xmppConnectionService.evictPreview(f);
2732                                f.delete();
2733                            }
2734                        }
2735                    }
2736                    if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
2737                        activity.xmppConnectionService.evictPreview(activity.xmppConnectionService.getFileBackend().getFile(message));
2738                        activity.xmppConnectionService.updateMessage(message, false);
2739                        activity.onConversationsListItemUpdated();
2740                        refresh();
2741                    }
2742                });
2743        builder.create().show();
2744    }
2745
2746    private void resendMessage(final Message message) {
2747        if (message.isFileOrImage()) {
2748            if (!(message.getConversation() instanceof Conversation)) {
2749                return;
2750            }
2751            final Conversation conversation = (Conversation) message.getConversation();
2752            final DownloadableFile file =
2753                    activity.xmppConnectionService.getFileBackend().getFile(message);
2754            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
2755                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
2756                if (!message.hasFileOnRemoteHost()
2757                        && xmppConnection != null
2758                        && conversation.getMode() == Conversational.MODE_SINGLE
2759                        && !xmppConnection
2760                                .getFeatures()
2761                                .httpUpload(message.getFileParams().getSize())) {
2762                    activity.selectPresence(
2763                            conversation,
2764                            () -> {
2765                                message.setCounterpart(conversation.getNextCounterpart());
2766                                activity.xmppConnectionService.resendFailedMessages(message);
2767                                new Handler()
2768                                        .post(
2769                                                () -> {
2770                                                    int size = messageList.size();
2771                                                    this.binding.messagesView.setSelection(
2772                                                            size - 1);
2773                                                });
2774                            });
2775                    return;
2776                }
2777            } else if (!Compatibility.hasStoragePermission(getActivity())) {
2778                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
2779                return;
2780            } else {
2781                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
2782                message.setDeleted(true);
2783                activity.xmppConnectionService.updateMessage(message, false);
2784                activity.onConversationsListItemUpdated();
2785                refresh();
2786                return;
2787            }
2788        }
2789        activity.xmppConnectionService.resendFailedMessages(message);
2790        new Handler()
2791                .post(
2792                        () -> {
2793                            int size = messageList.size();
2794                            this.binding.messagesView.setSelection(size - 1);
2795                        });
2796    }
2797
2798    private void cancelTransmission(Message message) {
2799        Transferable transferable = message.getTransferable();
2800        if (transferable != null) {
2801            transferable.cancel();
2802        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
2803            activity.xmppConnectionService.markMessage(
2804                    message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
2805        }
2806    }
2807
2808    private void retryDecryption(Message message) {
2809        message.setEncryption(Message.ENCRYPTION_PGP);
2810        activity.onConversationsListItemUpdated();
2811        refresh();
2812        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
2813    }
2814
2815    public void privateMessageWith(final Jid counterpart) {
2816        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2817            activity.xmppConnectionService.sendChatState(conversation);
2818        }
2819        this.binding.textinput.setText("");
2820        this.conversation.setNextCounterpart(counterpart);
2821        updateChatMsgHint();
2822        updateSendButton();
2823        updateEditablity();
2824    }
2825
2826    private void correctMessage(Message message) {
2827        while (message.mergeable(message.next())) {
2828            message = message.next();
2829        }
2830        setThread(message.getThread());
2831        conversation.setUserSelectedThread(true);
2832        this.conversation.setCorrectingMessage(message);
2833        final Editable editable = binding.textinput.getText();
2834        this.conversation.setDraftMessage(editable.toString());
2835        this.binding.textinput.setText("");
2836        this.binding.textinput.append(message.getBody());
2837    }
2838
2839    private void highlightInConference(String nick) {
2840        final Editable editable = this.binding.textinput.getText();
2841        String oldString = editable.toString().trim();
2842        final int pos = this.binding.textinput.getSelectionStart();
2843        if (oldString.isEmpty() || pos == 0) {
2844            editable.insert(0, nick + ": ");
2845        } else {
2846            final char before = editable.charAt(pos - 1);
2847            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
2848            if (before == '\n') {
2849                editable.insert(pos, nick + ": ");
2850            } else {
2851                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
2852                    if (NickValidityChecker.check(
2853                            conversation,
2854                            Arrays.asList(
2855                                    editable.subSequence(0, pos - 2).toString().split(", ")))) {
2856                        editable.insert(pos - 2, ", " + nick);
2857                        return;
2858                    }
2859                }
2860                editable.insert(
2861                        pos,
2862                        (Character.isWhitespace(before) ? "" : " ")
2863                                + nick
2864                                + (Character.isWhitespace(after) ? "" : " "));
2865                if (Character.isWhitespace(after)) {
2866                    this.binding.textinput.setSelection(
2867                            this.binding.textinput.getSelectionStart() + 1);
2868                }
2869            }
2870        }
2871    }
2872
2873    @Override
2874    public void startActivityForResult(Intent intent, int requestCode) {
2875        final Activity activity = getActivity();
2876        if (activity instanceof ConversationsActivity) {
2877            ((ConversationsActivity) activity).clearPendingViewIntent();
2878        }
2879        super.startActivityForResult(intent, requestCode);
2880    }
2881
2882    @Override
2883    public void onSaveInstanceState(@NotNull Bundle outState) {
2884        super.onSaveInstanceState(outState);
2885        if (conversation != null) {
2886            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
2887            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
2888            final Uri uri = pendingTakePhotoUri.peek();
2889            if (uri != null) {
2890                outState.putString(STATE_PHOTO_URI, uri.toString());
2891            }
2892            final ScrollState scrollState = getScrollPosition();
2893            if (scrollState != null) {
2894                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
2895            }
2896            final ArrayList<Attachment> attachments =
2897                    mediaPreviewAdapter == null
2898                            ? new ArrayList<>()
2899                            : mediaPreviewAdapter.getAttachments();
2900            if (attachments.size() > 0) {
2901                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
2902            }
2903        }
2904    }
2905
2906    @Override
2907    public void onActivityCreated(Bundle savedInstanceState) {
2908        super.onActivityCreated(savedInstanceState);
2909        if (savedInstanceState == null) {
2910            return;
2911        }
2912        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
2913        ArrayList<Attachment> attachments =
2914                savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
2915        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
2916        if (uuid != null) {
2917            QuickLoader.set(uuid);
2918            this.pendingConversationsUuid.push(uuid);
2919            if (attachments != null && attachments.size() > 0) {
2920                this.pendingMediaPreviews.push(attachments);
2921            }
2922            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
2923            if (takePhotoUri != null) {
2924                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2925            }
2926            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2927        }
2928    }
2929
2930    @Override
2931    public void onStart() {
2932        super.onStart();
2933        if (this.reInitRequiredOnStart && this.conversation != null) {
2934            final Bundle extras = pendingExtras.pop();
2935            reInit(this.conversation, extras != null);
2936            if (extras != null) {
2937                processExtras(extras);
2938            }
2939        } else if (conversation == null
2940                && activity != null
2941                && activity.xmppConnectionService != null) {
2942            final String uuid = pendingConversationsUuid.pop();
2943            Log.d(
2944                    Config.LOGTAG,
2945                    "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid="
2946                            + uuid);
2947            if (uuid != null) {
2948                findAndReInitByUuidOrArchive(uuid);
2949            }
2950        }
2951    }
2952
2953    @Override
2954    public void onStop() {
2955        super.onStop();
2956        final Activity activity = getActivity();
2957        messageListAdapter.unregisterListenerInAudioPlayer();
2958        if (activity == null || !activity.isChangingConfigurations()) {
2959            hideSoftKeyboard(activity);
2960            messageListAdapter.stopAudioPlayer();
2961        }
2962        if (this.conversation != null) {
2963            final String msg = this.binding.textinput.getText().toString();
2964            storeNextMessage(msg);
2965            updateChatState(this.conversation, msg);
2966            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2967        }
2968        this.reInitRequiredOnStart = true;
2969        if (emojiPopup != null) emojiPopup.dismiss();
2970    }
2971
2972    private void updateChatState(final Conversation conversation, final String msg) {
2973        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2974        Account.State status = conversation.getAccount().getStatus();
2975        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2976            activity.xmppConnectionService.sendChatState(conversation);
2977        }
2978    }
2979
2980    private void saveMessageDraftStopAudioPlayer() {
2981        final Conversation previousConversation = this.conversation;
2982        if (this.activity == null || this.binding == null || previousConversation == null) {
2983            return;
2984        }
2985        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2986        final String msg = this.binding.textinput.getText().toString();
2987        storeNextMessage(msg);
2988        updateChatState(this.conversation, msg);
2989        messageListAdapter.stopAudioPlayer();
2990        mediaPreviewAdapter.clearPreviews();
2991        toggleInputMethod();
2992    }
2993
2994    public void reInit(final Conversation conversation, final Bundle extras) {
2995        QuickLoader.set(conversation.getUuid());
2996        final boolean changedConversation = this.conversation != conversation;
2997        if (changedConversation) {
2998            this.saveMessageDraftStopAudioPlayer();
2999        }
3000        this.clearPending();
3001        if (this.reInit(conversation, extras != null)) {
3002            if (extras != null) {
3003                processExtras(extras);
3004            }
3005            this.reInitRequiredOnStart = false;
3006        } else {
3007            this.reInitRequiredOnStart = true;
3008            pendingExtras.push(extras);
3009        }
3010        resetUnreadMessagesCount();
3011    }
3012
3013    private void reInit(Conversation conversation) {
3014        reInit(conversation, false);
3015    }
3016
3017    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
3018        if (conversation == null) {
3019            return false;
3020        }
3021        final Conversation originalConversation = this.conversation;
3022        this.conversation = conversation;
3023        // once we set the conversation all is good and it will automatically do the right thing in
3024        // onStart()
3025        if (this.activity == null || this.binding == null) {
3026            return false;
3027        }
3028
3029        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
3030            activity.onConversationArchived(this.conversation);
3031            return false;
3032        }
3033
3034        setThread(conversation.getThread());
3035        setupReply(conversation.getReplyTo());
3036
3037        stopScrolling();
3038        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
3039
3040        if (this.conversation.isRead() && hasExtras) {
3041            Log.d(Config.LOGTAG, "trimming conversation");
3042            this.conversation.trim();
3043        }
3044
3045        setupIme();
3046
3047        final boolean scrolledToBottomAndNoPending =
3048                this.scrolledToBottom() && pendingScrollState.peek() == null;
3049
3050        this.binding.textSendButton.setContentDescription(
3051                activity.getString(R.string.send_message_to_x, conversation.getName()));
3052        this.binding.textinput.setKeyboardListener(null);
3053        final boolean participating =
3054                conversation.getMode() == Conversational.MODE_SINGLE
3055                        || conversation.getMucOptions().participating();
3056        if (participating) {
3057            this.binding.textinput.setText(this.conversation.getNextMessage());
3058            this.binding.textinput.setSelection(this.binding.textinput.length());
3059        } else {
3060            this.binding.textinput.setText(MessageUtils.EMPTY_STRING);
3061        }
3062        this.binding.textinput.setKeyboardListener(this);
3063        messageListAdapter.updatePreferences();
3064        refresh(false);
3065        activity.invalidateOptionsMenu();
3066        this.conversation.messagesLoaded.set(true);
3067        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
3068
3069        if (hasExtras || scrolledToBottomAndNoPending) {
3070            resetUnreadMessagesCount();
3071            synchronized (this.messageList) {
3072                Log.d(Config.LOGTAG, "jump to first unread message");
3073                final Message first = conversation.getFirstUnreadMessage();
3074                final int bottom = Math.max(0, this.messageList.size() - 1);
3075                final int pos;
3076                final boolean jumpToBottom;
3077                if (first == null) {
3078                    pos = bottom;
3079                    jumpToBottom = true;
3080                } else {
3081                    int i = getIndexOf(first.getUuid(), this.messageList);
3082                    pos = i < 0 ? bottom : i;
3083                    jumpToBottom = false;
3084                }
3085                setSelection(pos, jumpToBottom);
3086            }
3087        }
3088
3089        this.binding.messagesView.post(this::fireReadEvent);
3090        // TODO if we only do this when this fragment is running on main it won't *bing* in tablet
3091        // layout which might be unnecessary since we can *see* it
3092        activity.xmppConnectionService
3093                .getNotificationService()
3094                .setOpenConversation(this.conversation);
3095
3096        if (commandAdapter != null && conversation != originalConversation) {
3097            commandAdapter.clear();
3098            conversation.setupViewPager(binding.conversationViewPager, binding.tabLayout, activity.xmppConnectionService.isOnboarding(), originalConversation);
3099            refreshCommands(false);
3100        }
3101        if (commandAdapter == null && conversation != null) {
3102            conversation.setupViewPager(binding.conversationViewPager, binding.tabLayout, activity.xmppConnectionService.isOnboarding(), null);
3103            commandAdapter = new CommandAdapter((XmppActivity) getActivity());
3104            binding.commandsView.setAdapter(commandAdapter);
3105            binding.commandsView.setOnItemClickListener((parent, view, position, id) -> {
3106                if (activity == null) return;
3107
3108                final Element command = commandAdapter.getItem(position);
3109                activity.startCommand(ConversationFragment.this.conversation.getAccount(), command.getAttributeAsJid("jid"), command.getAttribute("node"));
3110            });
3111            refreshCommands(false);
3112        }
3113
3114        return true;
3115    }
3116
3117    public void refreshForNewCaps() {
3118        refreshCommands(true);
3119    }
3120
3121    protected void refreshCommands(boolean delayShow) {
3122        if (commandAdapter == null) return;
3123
3124        Jid commandJid = conversation.getContact().resourceWhichSupport(Namespace.COMMANDS);
3125        if (commandJid == null && conversation.getMode() == Conversation.MODE_MULTI && conversation.getMucOptions().hasFeature(Namespace.COMMANDS)) {
3126            commandJid = conversation.getJid().asBareJid();
3127        }
3128        if (commandJid == null && conversation.getJid().isDomainJid()) {
3129            commandJid = conversation.getJid();
3130        }
3131        if (commandJid == null) {
3132            conversation.hideViewPager();
3133        } else {
3134            if (!delayShow) conversation.showViewPager();
3135            binding.commandsViewProgressbar.setVisibility(View.VISIBLE);
3136            activity.xmppConnectionService.fetchCommands(conversation.getAccount(), commandJid, (a, iq) -> {
3137                if (activity == null) return;
3138
3139                activity.runOnUiThread(() -> {
3140                    if (iq.getType() == IqPacket.TYPE.RESULT) {
3141                        binding.commandsViewProgressbar.setVisibility(View.GONE);
3142                        commandAdapter.clear();
3143                        for (Element child : iq.query().getChildren()) {
3144                            if (!"item".equals(child.getName()) || !Namespace.DISCO_ITEMS.equals(child.getNamespace())) continue;
3145                            commandAdapter.add(child);
3146                        }
3147                    }
3148
3149                    if (commandAdapter.getCount() < 1) {
3150                        conversation.hideViewPager();
3151                    } else if (delayShow) {
3152                        conversation.showViewPager();
3153                    }
3154                });
3155            });
3156        }
3157    }
3158
3159    private void resetUnreadMessagesCount() {
3160        lastMessageUuid = null;
3161        hideUnreadMessagesCount();
3162    }
3163
3164    private void hideUnreadMessagesCount() {
3165        if (this.binding == null) {
3166            return;
3167        }
3168        this.binding.scrollToBottomButton.setEnabled(false);
3169        this.binding.scrollToBottomButton.hide();
3170        this.binding.unreadCountCustomView.setVisibility(View.GONE);
3171    }
3172
3173    private void setSelection(int pos, boolean jumpToBottom) {
3174        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
3175        this.binding.messagesView.post(
3176                () -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
3177        this.binding.messagesView.post(this::fireReadEvent);
3178    }
3179
3180    private boolean scrolledToBottom() {
3181        return this.binding != null && scrolledToBottom(this.binding.messagesView);
3182    }
3183
3184    private void processExtras(final Bundle extras) {
3185        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
3186        final String text = extras.getString(Intent.EXTRA_TEXT);
3187        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
3188        final String node = extras.getString(ConversationsActivity.EXTRA_NODE);
3189        final String postInitAction =
3190                extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
3191        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
3192        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
3193        final boolean doNotAppend =
3194                extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
3195        final String type = extras.getString(ConversationsActivity.EXTRA_TYPE);
3196        final List<Uri> uris = extractUris(extras);
3197        if (uris != null && uris.size() > 0) {
3198            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
3199                mediaPreviewAdapter.addMediaPreviews(
3200                        Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
3201            } else {
3202                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
3203                mediaPreviewAdapter.addMediaPreviews(
3204                        Attachment.of(getActivity(), cleanedUris, type));
3205            }
3206            toggleInputMethod();
3207            return;
3208        }
3209        if (nick != null) {
3210            if (pm) {
3211                Jid jid = conversation.getJid();
3212                try {
3213                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
3214                    privateMessageWith(next);
3215                } catch (final IllegalArgumentException ignored) {
3216                    // do nothing
3217                }
3218            } else {
3219                final MucOptions mucOptions = conversation.getMucOptions();
3220                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
3221                    highlightInConference(nick);
3222                }
3223            }
3224        } else {
3225            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
3226                mediaPreviewAdapter.addMediaPreviews(
3227                        Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
3228                toggleInputMethod();
3229                return;
3230            } else if (text != null && asQuote) {
3231                quoteText(text);
3232            } else {
3233                appendText(text, doNotAppend);
3234            }
3235        }
3236        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
3237            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
3238            return;
3239        }
3240        if ("call".equals(postInitAction)) {
3241            checkPermissionAndTriggerAudioCall();
3242        }
3243        if ("message".equals(postInitAction)) {
3244            binding.conversationViewPager.post(() -> {
3245                binding.conversationViewPager.setCurrentItem(0);
3246            });
3247        }
3248        if ("command".equals(postInitAction)) {
3249            binding.conversationViewPager.post(() -> {
3250                PagerAdapter adapter = binding.conversationViewPager.getAdapter();
3251                if (adapter != null && adapter.getCount() > 1) {
3252                    binding.conversationViewPager.setCurrentItem(1);
3253                }
3254                final String jid = extras.getString(ConversationsActivity.EXTRA_JID);
3255                Jid commandJid = null;
3256                if (jid != null) {
3257                    try {
3258                        commandJid = Jid.of(jid);
3259                    } catch (final IllegalArgumentException e) { }
3260                }
3261                if (commandJid == null || !commandJid.isFullJid()) {
3262                    final Jid discoJid = conversation.getContact().resourceWhichSupport(Namespace.COMMANDS);
3263                    if (discoJid != null) commandJid = discoJid;
3264                }
3265                if (node != null && commandJid != null) {
3266                    conversation.startCommand(commandFor(commandJid, node), activity.xmppConnectionService);
3267                }
3268            });
3269            return;
3270        }
3271        Message message =
3272                downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
3273        if ("webxdc".equals(postInitAction)) {
3274            if (message == null) {
3275                message = activity.xmppConnectionService.getMessage(conversation, downloadUuid);
3276            }
3277            if (message == null) return;
3278
3279            Cid webxdcCid = message.getFileParams().getCids().get(0);
3280            WebxdcPage webxdc = new WebxdcPage(activity, webxdcCid, message, activity.xmppConnectionService);
3281            Conversation conversation = (Conversation) message.getConversation();
3282            if (!conversation.switchToSession("webxdc\0" + message.getUuid())) {
3283                conversation.startWebxdc(webxdc);
3284            }
3285        }
3286        if (message != null) {
3287            startDownloadable(message);
3288        }
3289        if (activity.xmppConnectionService.isOnboarding() && conversation.getJid().equals(Jid.of("cheogram.com"))) {
3290            if (!conversation.switchToSession("jabber:iq:register")) {
3291                conversation.startCommand(commandFor(Jid.of("cheogram.com/CHEOGRAM%jabber:iq:register"), "jabber:iq:register"), activity.xmppConnectionService);
3292            }
3293        }
3294    }
3295
3296    private Element commandFor(final Jid jid, final String node) {
3297        if (commandAdapter != null) {
3298            for (int i = 0; i < commandAdapter.getCount(); i++) {
3299                Element command = commandAdapter.getItem(i);
3300                final String commandNode = command.getAttribute("node");
3301                if (commandNode == null || !commandNode.equals(node)) continue;
3302
3303                final Jid commandJid = command.getAttributeAsJid("jid");
3304                if (commandJid != null && !commandJid.asBareJid().equals(jid.asBareJid())) continue;
3305
3306                return command;
3307            }
3308        }
3309
3310        return new Element("command", Namespace.COMMANDS).setAttribute("name", node).setAttribute("node", node).setAttribute("jid", jid);
3311    }
3312
3313    private List<Uri> extractUris(final Bundle extras) {
3314        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
3315        if (uris != null) {
3316            return uris;
3317        }
3318        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
3319        if (uri != null) {
3320            return Collections.singletonList(uri);
3321        } else {
3322            return null;
3323        }
3324    }
3325
3326    private List<Uri> cleanUris(final List<Uri> uris) {
3327        final Iterator<Uri> iterator = uris.iterator();
3328        while (iterator.hasNext()) {
3329            final Uri uri = iterator.next();
3330            if (FileBackend.weOwnFile(uri)) {
3331                iterator.remove();
3332                Toast.makeText(
3333                                getActivity(),
3334                                R.string.security_violation_not_attaching_file,
3335                                Toast.LENGTH_SHORT)
3336                        .show();
3337            }
3338        }
3339        return uris;
3340    }
3341
3342    private boolean showBlockSubmenu(View view) {
3343        final Jid jid = conversation.getJid();
3344        final boolean showReject =
3345                !conversation.isWithStranger()
3346                        && conversation
3347                                .getContact()
3348                                .getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
3349        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
3350        popupMenu.inflate(R.menu.block);
3351        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
3352        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
3353        popupMenu.setOnMenuItemClickListener(
3354                menuItem -> {
3355                    Blockable blockable;
3356                    switch (menuItem.getItemId()) {
3357                        case R.id.reject:
3358                            activity.xmppConnectionService.stopPresenceUpdatesTo(
3359                                    conversation.getContact());
3360                            updateSnackBar(conversation);
3361                            return true;
3362                        case R.id.block_domain:
3363                            blockable =
3364                                    conversation
3365                                            .getAccount()
3366                                            .getRoster()
3367                                            .getContact(jid.getDomain());
3368                            break;
3369                        default:
3370                            blockable = conversation;
3371                    }
3372                    BlockContactDialog.show(activity, blockable);
3373                    return true;
3374                });
3375        popupMenu.show();
3376        return true;
3377    }
3378
3379    private void updateSnackBar(final Conversation conversation) {
3380        final Account account = conversation.getAccount();
3381        final XmppConnection connection = account.getXmppConnection();
3382        final int mode = conversation.getMode();
3383        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
3384        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
3385            return;
3386        }
3387        if (account.getStatus() == Account.State.DISABLED) {
3388            showSnackbar(
3389                    R.string.this_account_is_disabled,
3390                    R.string.enable,
3391                    this.mEnableAccountListener);
3392        } else if (account.getStatus() == Account.State.LOGGED_OUT) {
3393            showSnackbar(R.string.this_account_is_logged_out,R.string.log_in,this.mEnableAccountListener);
3394        } else if (conversation.isBlocked()) {
3395            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
3396        } else if (contact != null
3397                && !contact.showInRoster()
3398                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
3399            showSnackbar(
3400                    R.string.contact_added_you,
3401                    R.string.add_back,
3402                    this.mAddBackClickListener,
3403                    this.mLongPressBlockListener);
3404        } else if (contact != null
3405                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
3406            showSnackbar(
3407                    R.string.contact_asks_for_presence_subscription,
3408                    R.string.allow,
3409                    this.mAllowPresenceSubscription,
3410                    this.mLongPressBlockListener);
3411        } else if (mode == Conversation.MODE_MULTI
3412                && !conversation.getMucOptions().online()
3413                && account.getStatus() == Account.State.ONLINE) {
3414            switch (conversation.getMucOptions().getError()) {
3415                case NICK_IN_USE:
3416                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
3417                    break;
3418                case NO_RESPONSE:
3419                    showSnackbar(R.string.joining_conference, 0, null);
3420                    break;
3421                case SERVER_NOT_FOUND:
3422                    if (conversation.receivedMessagesCount() > 0) {
3423                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
3424                    } else {
3425                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
3426                    }
3427                    break;
3428                case REMOTE_SERVER_TIMEOUT:
3429                    if (conversation.receivedMessagesCount() > 0) {
3430                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
3431                    } else {
3432                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
3433                    }
3434                    break;
3435                case PASSWORD_REQUIRED:
3436                    showSnackbar(
3437                            R.string.conference_requires_password,
3438                            R.string.enter_password,
3439                            enterPassword);
3440                    break;
3441                case BANNED:
3442                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
3443                    break;
3444                case MEMBERS_ONLY:
3445                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
3446                    break;
3447                case RESOURCE_CONSTRAINT:
3448                    showSnackbar(
3449                            R.string.conference_resource_constraint, R.string.try_again, joinMuc);
3450                    break;
3451                case KICKED:
3452                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
3453                    break;
3454                case TECHNICAL_PROBLEMS:
3455                    showSnackbar(R.string.conference_technical_problems, R.string.try_again, joinMuc);
3456                    break;
3457                case UNKNOWN:
3458                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
3459                    break;
3460                case INVALID_NICK:
3461                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
3462                case SHUTDOWN:
3463                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
3464                    break;
3465                case DESTROYED:
3466                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
3467                    break;
3468                case NON_ANONYMOUS:
3469                    showSnackbar(
3470                            R.string.group_chat_will_make_your_jabber_id_public,
3471                            R.string.join,
3472                            acceptJoin);
3473                    break;
3474                default:
3475                    hideSnackbar();
3476                    break;
3477            }
3478        } else if (account.hasPendingPgpIntent(conversation)) {
3479            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
3480        } else if (connection != null
3481                && connection.getFeatures().blocking()
3482                && conversation.countMessages() != 0
3483                && !conversation.isBlocked()
3484                && conversation.isWithStranger()) {
3485            showSnackbar(
3486                    R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
3487        } else {
3488            hideSnackbar();
3489        }
3490    }
3491
3492    @Override
3493    public void refresh() {
3494        if (this.binding == null) {
3495            Log.d(
3496                    Config.LOGTAG,
3497                    "ConversationFragment.refresh() skipped updated because view binding was null");
3498            return;
3499        }
3500        if (this.conversation != null
3501                && this.activity != null
3502                && this.activity.xmppConnectionService != null) {
3503            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
3504                activity.onConversationArchived(this.conversation);
3505                return;
3506            }
3507        }
3508        this.refresh(true);
3509    }
3510
3511    private void refresh(boolean notifyConversationRead) {
3512        synchronized (this.messageList) {
3513            if (this.conversation != null) {
3514                if (messageListAdapter.hasSelection()) {
3515                    if (notifyConversationRead) binding.messagesView.postDelayed(this::refresh, 1000L);
3516                } else {
3517                    conversation.populateWithMessages(this.messageList);
3518                    updateStatusMessages();
3519                    this.messageListAdapter.notifyDataSetChanged();
3520                }
3521                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
3522                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
3523                    binding.unreadCountCustomView.setUnreadCount(
3524                            conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
3525                }
3526                updateSnackBar(conversation);
3527                if (activity != null) updateChatMsgHint();
3528                if (notifyConversationRead && activity != null) {
3529                    binding.messagesView.post(this::fireReadEvent);
3530                }
3531                updateSendButton();
3532                updateEditablity();
3533                conversation.refreshSessions();
3534            }
3535        }
3536    }
3537
3538    protected void messageSent() {
3539        setThread(null);
3540        conversation.setUserSelectedThread(false);
3541        mSendingPgpMessage.set(false);
3542        this.binding.textinput.setText("");
3543        if (conversation.setCorrectingMessage(null)) {
3544            this.binding.textinput.append(conversation.getDraftMessage());
3545            conversation.setDraftMessage(null);
3546        }
3547        storeNextMessage();
3548        updateChatMsgHint();
3549        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
3550        final boolean prefScrollToBottom =
3551                p.getBoolean(
3552                        "scroll_to_bottom",
3553                        activity.getResources().getBoolean(R.bool.scroll_to_bottom));
3554        if (prefScrollToBottom || scrolledToBottom()) {
3555            new Handler()
3556                    .post(
3557                            () -> {
3558                                int size = messageList.size();
3559                                this.binding.messagesView.setSelection(size - 1);
3560                            });
3561        }
3562    }
3563
3564    private boolean storeNextMessage() {
3565        return storeNextMessage(this.binding.textinput.getText().toString());
3566    }
3567
3568    private boolean storeNextMessage(String msg) {
3569        final boolean participating =
3570                conversation.getMode() == Conversational.MODE_SINGLE
3571                        || conversation.getMucOptions().participating();
3572        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED
3573                && participating
3574                && this.conversation.setNextMessage(msg)) {
3575            this.activity.xmppConnectionService.updateConversation(this.conversation);
3576            return true;
3577        }
3578        return false;
3579    }
3580
3581    public void doneSendingPgpMessage() {
3582        mSendingPgpMessage.set(false);
3583    }
3584
3585    public long getMaxHttpUploadSize(Conversation conversation) {
3586        final XmppConnection connection = conversation.getAccount().getXmppConnection();
3587        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
3588    }
3589
3590    private boolean canWrite() {
3591        return
3592                this.conversation.getMode() == Conversation.MODE_SINGLE
3593                        || this.conversation.getMucOptions().participating()
3594                        || this.conversation.getNextCounterpart() != null;
3595    }
3596
3597    private void updateEditablity() {
3598        boolean canWrite = canWrite();
3599        this.binding.textinput.setFocusable(canWrite);
3600        this.binding.textinput.setFocusableInTouchMode(canWrite);
3601        this.binding.textSendButton.setEnabled(canWrite);
3602        this.binding.textSendButton.setVisibility(canWrite ? View.VISIBLE : View.GONE);
3603        this.binding.requestVoice.setVisibility(canWrite ? View.GONE : View.VISIBLE);
3604        this.binding.textinput.setCursorVisible(canWrite);
3605        this.binding.textinput.setEnabled(canWrite);
3606    }
3607
3608    public void updateSendButton() {
3609        boolean hasAttachments =
3610                mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
3611        final Conversation c = this.conversation;
3612        final Presence.Status status;
3613        final String text =
3614                this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
3615        final SendButtonAction action;
3616        if (hasAttachments) {
3617            action = SendButtonAction.TEXT;
3618        } else {
3619            action = SendButtonTool.getAction(getActivity(), c, text);
3620        }
3621        if (c.getAccount().getStatus() == Account.State.ONLINE) {
3622            if (activity != null
3623                    && activity.xmppConnectionService != null
3624                    && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
3625                status = Presence.Status.OFFLINE;
3626            } else if (c.getMode() == Conversation.MODE_SINGLE) {
3627                status = c.getContact().getShownStatus();
3628            } else {
3629                status =
3630                        c.getMucOptions().online()
3631                                ? Presence.Status.ONLINE
3632                                : Presence.Status.OFFLINE;
3633            }
3634        } else {
3635            status = Presence.Status.OFFLINE;
3636        }
3637        this.binding.textSendButton.setTag(action);
3638        final Activity activity = getActivity();
3639        if (activity != null) {
3640            this.binding.textSendButton.setImageResource(
3641                    SendButtonTool.getSendButtonImageResource(activity, action, status));
3642        }
3643
3644        ViewGroup.LayoutParams params = binding.threadIdenticonLayout.getLayoutParams();
3645        if (identiconWidth < 0) identiconWidth = params.width;
3646        if (hasAttachments || binding.textinput.getText().toString().replaceFirst("^(\\w|[, ])+:\\s*", "").length() > 0) {
3647            binding.conversationViewPager.setCurrentItem(0);
3648            params.width = conversation.getThread() == null ? 0 : identiconWidth;
3649        } else {
3650            params.width = identiconWidth;
3651        }
3652        if (!canWrite()) params.width = 0;
3653        binding.threadIdenticonLayout.setLayoutParams(params);
3654    }
3655
3656    protected void updateStatusMessages() {
3657        DateSeparator.addAll(this.messageList);
3658        if (showLoadMoreMessages(conversation)) {
3659            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
3660        }
3661        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3662            ChatState state = conversation.getIncomingChatState();
3663            if (state == ChatState.COMPOSING) {
3664                this.messageList.add(
3665                        Message.createStatusMessage(
3666                                conversation,
3667                                getString(R.string.contact_is_typing, conversation.getName())));
3668            } else if (state == ChatState.PAUSED) {
3669                this.messageList.add(
3670                        Message.createStatusMessage(
3671                                conversation,
3672                                getString(
3673                                        R.string.contact_has_stopped_typing,
3674                                        conversation.getName())));
3675            } else {
3676                for (int i = this.messageList.size() - 1; i >= 0; --i) {
3677                    final Message message = this.messageList.get(i);
3678                    if (message.getType() != Message.TYPE_STATUS) {
3679                        if (message.getStatus() == Message.STATUS_RECEIVED) {
3680                            return;
3681                        } else {
3682                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
3683                                this.messageList.add(
3684                                        i + 1,
3685                                        Message.createStatusMessage(
3686                                                conversation,
3687                                                getString(
3688                                                        R.string.contact_has_read_up_to_this_point,
3689                                                        conversation.getName())));
3690                                return;
3691                            }
3692                        }
3693                    }
3694                }
3695            }
3696        } else {
3697            final MucOptions mucOptions = conversation.getMucOptions();
3698            final List<MucOptions.User> allUsers = mucOptions.getUsers();
3699            final Set<ReadByMarker> addedMarkers = new HashSet<>();
3700            ChatState state = ChatState.COMPOSING;
3701            List<MucOptions.User> users =
3702                    conversation.getMucOptions().getUsersWithChatState(state, 5);
3703            if (users.size() == 0) {
3704                state = ChatState.PAUSED;
3705                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
3706            }
3707            if (mucOptions.isPrivateAndNonAnonymous()) {
3708                for (int i = this.messageList.size() - 1; i >= 0; --i) {
3709                    final Set<ReadByMarker> markersForMessage =
3710                            messageList.get(i).getReadByMarkers();
3711                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
3712                    for (ReadByMarker marker : markersForMessage) {
3713                        if (!ReadByMarker.contains(marker, addedMarkers)) {
3714                            addedMarkers.add(
3715                                    marker); // may be put outside this condition. set should do
3716                                             // dedup anyway
3717                            MucOptions.User user = mucOptions.findUser(marker);
3718                            if (user != null && !users.contains(user)) {
3719                                shownMarkers.add(user);
3720                            }
3721                        }
3722                    }
3723                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
3724                    final Message statusMessage;
3725                    final int size = shownMarkers.size();
3726                    if (size > 1) {
3727                        final String body;
3728                        if (size <= 4) {
3729                            body =
3730                                    getString(
3731                                            R.string.contacts_have_read_up_to_this_point,
3732                                            UIHelper.concatNames(shownMarkers));
3733                        } else if (ReadByMarker.allUsersRepresented(
3734                                allUsers, markersForMessage, markerForSender)) {
3735                            body = getString(R.string.everyone_has_read_up_to_this_point);
3736                        } else {
3737                            body =
3738                                    getString(
3739                                            R.string.contacts_and_n_more_have_read_up_to_this_point,
3740                                            UIHelper.concatNames(shownMarkers, 3),
3741                                            size - 3);
3742                        }
3743                        statusMessage = Message.createStatusMessage(conversation, body);
3744                        statusMessage.setCounterparts(shownMarkers);
3745                    } else if (size == 1) {
3746                        statusMessage =
3747                                Message.createStatusMessage(
3748                                        conversation,
3749                                        getString(
3750                                                R.string.contact_has_read_up_to_this_point,
3751                                                UIHelper.getDisplayName(shownMarkers.get(0))));
3752                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
3753                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
3754                    } else {
3755                        statusMessage = null;
3756                    }
3757                    if (statusMessage != null) {
3758                        this.messageList.add(i + 1, statusMessage);
3759                    }
3760                    addedMarkers.add(markerForSender);
3761                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
3762                        break;
3763                    }
3764                }
3765            }
3766            if (users.size() > 0) {
3767                Message statusMessage;
3768                if (users.size() == 1) {
3769                    MucOptions.User user = users.get(0);
3770                    int id =
3771                            state == ChatState.COMPOSING
3772                                    ? R.string.contact_is_typing
3773                                    : R.string.contact_has_stopped_typing;
3774                    statusMessage =
3775                            Message.createStatusMessage(
3776                                    conversation, getString(id, UIHelper.getDisplayName(user)));
3777                    statusMessage.setTrueCounterpart(user.getRealJid());
3778                    statusMessage.setCounterpart(user.getFullJid());
3779                } else {
3780                    int id =
3781                            state == ChatState.COMPOSING
3782                                    ? R.string.contacts_are_typing
3783                                    : R.string.contacts_have_stopped_typing;
3784                    statusMessage =
3785                            Message.createStatusMessage(
3786                                    conversation, getString(id, UIHelper.concatNames(users)));
3787                    statusMessage.setCounterparts(users);
3788                }
3789                this.messageList.add(statusMessage);
3790            }
3791        }
3792    }
3793
3794    private void stopScrolling() {
3795        long now = SystemClock.uptimeMillis();
3796        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
3797        binding.messagesView.dispatchTouchEvent(cancel);
3798    }
3799
3800    private boolean showLoadMoreMessages(final Conversation c) {
3801        if (activity == null || activity.xmppConnectionService == null) {
3802            return false;
3803        }
3804        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
3805        final MessageArchiveService service =
3806                activity.xmppConnectionService.getMessageArchiveService();
3807        return mam
3808                && (c.getLastClearHistory().getTimestamp() != 0
3809                        || (c.countMessages() == 0
3810                                && c.messagesLoaded.get()
3811                                && c.hasMessagesLeftOnServer()
3812                                && !service.queryInProgress(c)));
3813    }
3814
3815    private boolean hasMamSupport(final Conversation c) {
3816        if (c.getMode() == Conversation.MODE_SINGLE) {
3817            final XmppConnection connection = c.getAccount().getXmppConnection();
3818            return connection != null && connection.getFeatures().mam();
3819        } else {
3820            return c.getMucOptions().mamSupport();
3821        }
3822    }
3823
3824    protected void showSnackbar(
3825            final int message, final int action, final OnClickListener clickListener) {
3826        showSnackbar(message, action, clickListener, null);
3827    }
3828
3829    protected void showSnackbar(
3830            final int message,
3831            final int action,
3832            final OnClickListener clickListener,
3833            final View.OnLongClickListener longClickListener) {
3834        this.binding.snackbar.setVisibility(View.VISIBLE);
3835        this.binding.snackbar.setOnClickListener(null);
3836        this.binding.snackbarMessage.setText(message);
3837        this.binding.snackbarMessage.setOnClickListener(null);
3838        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
3839        if (action != 0) {
3840            this.binding.snackbarAction.setText(action);
3841        }
3842        this.binding.snackbarAction.setOnClickListener(clickListener);
3843        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
3844    }
3845
3846    protected void hideSnackbar() {
3847        this.binding.snackbar.setVisibility(View.GONE);
3848    }
3849
3850    protected void sendMessage(Message message) {
3851        new Thread(() -> activity.xmppConnectionService.sendMessage(message)).start();
3852        messageSent();
3853    }
3854
3855    protected void sendPgpMessage(final Message message) {
3856        final XmppConnectionService xmppService = activity.xmppConnectionService;
3857        final Contact contact = message.getConversation().getContact();
3858        if (!activity.hasPgp()) {
3859            activity.showInstallPgpDialog();
3860            return;
3861        }
3862        if (conversation.getAccount().getPgpSignature() == null) {
3863            activity.announcePgp(
3864                    conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
3865            return;
3866        }
3867        if (!mSendingPgpMessage.compareAndSet(false, true)) {
3868            Log.d(Config.LOGTAG, "sending pgp message already in progress");
3869        }
3870        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3871            if (contact.getPgpKeyId() != 0) {
3872                xmppService
3873                        .getPgpEngine()
3874                        .hasKey(
3875                                contact,
3876                                new UiCallback<Contact>() {
3877
3878                                    @Override
3879                                    public void userInputRequired(
3880                                            PendingIntent pi, Contact contact) {
3881                                        startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
3882                                    }
3883
3884                                    @Override
3885                                    public void success(Contact contact) {
3886                                        encryptTextMessage(message);
3887                                    }
3888
3889                                    @Override
3890                                    public void error(int error, Contact contact) {
3891                                        activity.runOnUiThread(
3892                                                () ->
3893                                                        Toast.makeText(
3894                                                                        activity,
3895                                                                        R.string
3896                                                                                .unable_to_connect_to_keychain,
3897                                                                        Toast.LENGTH_SHORT)
3898                                                                .show());
3899                                        mSendingPgpMessage.set(false);
3900                                    }
3901                                });
3902
3903            } else {
3904                showNoPGPKeyDialog(
3905                        false,
3906                        (dialog, which) -> {
3907                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3908                            xmppService.updateConversation(conversation);
3909                            message.setEncryption(Message.ENCRYPTION_NONE);
3910                            xmppService.sendMessage(message);
3911                            messageSent();
3912                        });
3913            }
3914        } else {
3915            if (conversation.getMucOptions().pgpKeysInUse()) {
3916                if (!conversation.getMucOptions().everybodyHasKeys()) {
3917                    Toast warning =
3918                            Toast.makeText(
3919                                    getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
3920                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
3921                    warning.show();
3922                }
3923                encryptTextMessage(message);
3924            } else {
3925                showNoPGPKeyDialog(
3926                        true,
3927                        (dialog, which) -> {
3928                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3929                            message.setEncryption(Message.ENCRYPTION_NONE);
3930                            xmppService.updateConversation(conversation);
3931                            xmppService.sendMessage(message);
3932                            messageSent();
3933                        });
3934            }
3935        }
3936    }
3937
3938    public void encryptTextMessage(Message message) {
3939        activity.xmppConnectionService
3940                .getPgpEngine()
3941                .encrypt(
3942                        message,
3943                        new UiCallback<Message>() {
3944
3945                            @Override
3946                            public void userInputRequired(PendingIntent pi, Message message) {
3947                                startPendingIntent(pi, REQUEST_SEND_MESSAGE);
3948                            }
3949
3950                            @Override
3951                            public void success(Message message) {
3952                                // TODO the following two call can be made before the callback
3953                                getActivity().runOnUiThread(() -> messageSent());
3954                            }
3955
3956                            @Override
3957                            public void error(final int error, Message message) {
3958                                getActivity()
3959                                        .runOnUiThread(
3960                                                () -> {
3961                                                    doneSendingPgpMessage();
3962                                                    Toast.makeText(
3963                                                                    getActivity(),
3964                                                                    error == 0
3965                                                                            ? R.string
3966                                                                                    .unable_to_connect_to_keychain
3967                                                                            : error,
3968                                                                    Toast.LENGTH_SHORT)
3969                                                            .show();
3970                                                });
3971                            }
3972                        });
3973    }
3974
3975    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
3976        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
3977        builder.setIconAttribute(android.R.attr.alertDialogIcon);
3978        if (plural) {
3979            builder.setTitle(getString(R.string.no_pgp_keys));
3980            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
3981        } else {
3982            builder.setTitle(getString(R.string.no_pgp_key));
3983            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
3984        }
3985        builder.setNegativeButton(getString(R.string.cancel), null);
3986        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
3987        builder.create().show();
3988    }
3989
3990    public void appendText(String text, final boolean doNotAppend) {
3991        if (text == null) {
3992            return;
3993        }
3994        final Editable editable = this.binding.textinput.getText();
3995        String previous = editable == null ? "" : editable.toString();
3996        if (doNotAppend && !TextUtils.isEmpty(previous)) {
3997            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG)
3998                    .show();
3999            return;
4000        }
4001        if (UIHelper.isLastLineQuote(previous)) {
4002            text = '\n' + text;
4003        } else if (previous.length() != 0
4004                && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
4005            text = " " + text;
4006        }
4007        this.binding.textinput.append(text);
4008    }
4009
4010    @Override
4011    public boolean onEnterPressed(final boolean isCtrlPressed) {
4012        if (isCtrlPressed || enterIsSend()) {
4013            sendMessage();
4014            return true;
4015        }
4016        return false;
4017    }
4018
4019    private boolean enterIsSend() {
4020        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
4021        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
4022    }
4023
4024    public boolean onArrowUpCtrlPressed() {
4025        final Message lastEditableMessage =
4026                conversation == null ? null : conversation.getLastEditableMessage();
4027        if (lastEditableMessage != null) {
4028            correctMessage(lastEditableMessage);
4029            return true;
4030        } else {
4031            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG)
4032                    .show();
4033            return false;
4034        }
4035    }
4036
4037    @Override
4038    public void onTypingStarted() {
4039        final XmppConnectionService service =
4040                activity == null ? null : activity.xmppConnectionService;
4041        if (service == null) {
4042            return;
4043        }
4044        final Account.State status = conversation.getAccount().getStatus();
4045        if (status == Account.State.ONLINE
4046                && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
4047            service.sendChatState(conversation);
4048        }
4049        runOnUiThread(this::updateSendButton);
4050    }
4051
4052    @Override
4053    public void onTypingStopped() {
4054        final XmppConnectionService service =
4055                activity == null ? null : activity.xmppConnectionService;
4056        if (service == null) {
4057            return;
4058        }
4059        final Account.State status = conversation.getAccount().getStatus();
4060        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
4061            service.sendChatState(conversation);
4062        }
4063    }
4064
4065    @Override
4066    public void onTextDeleted() {
4067        final XmppConnectionService service =
4068                activity == null ? null : activity.xmppConnectionService;
4069        if (service == null) {
4070            return;
4071        }
4072        final Account.State status = conversation.getAccount().getStatus();
4073        if (status == Account.State.ONLINE
4074                && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
4075            service.sendChatState(conversation);
4076        }
4077        if (storeNextMessage()) {
4078            runOnUiThread(
4079                    () -> {
4080                        if (activity == null) {
4081                            return;
4082                        }
4083                        activity.onConversationsListItemUpdated();
4084                    });
4085        }
4086        runOnUiThread(this::updateSendButton);
4087    }
4088
4089    @Override
4090    public void onTextChanged() {
4091        if (conversation != null && conversation.getCorrectingMessage() != null) {
4092            runOnUiThread(this::updateSendButton);
4093        }
4094    }
4095
4096    @Override
4097    public boolean onTabPressed(boolean repeated) {
4098        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
4099            return false;
4100        }
4101        if (repeated) {
4102            completionIndex++;
4103        } else {
4104            lastCompletionLength = 0;
4105            completionIndex = 0;
4106            final String content = this.binding.textinput.getText().toString();
4107            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
4108            int start =
4109                    lastCompletionCursor > 0
4110                            ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1
4111                            : 0;
4112            firstWord = start == 0;
4113            incomplete = content.substring(start, lastCompletionCursor);
4114        }
4115        List<String> completions = new ArrayList<>();
4116        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
4117            String name = user.getNick();
4118            if (name != null && name.startsWith(incomplete)) {
4119                completions.add(name + (firstWord ? ": " : " "));
4120            }
4121        }
4122        Collections.sort(completions);
4123        if (completions.size() > completionIndex) {
4124            String completion = completions.get(completionIndex).substring(incomplete.length());
4125            this.binding
4126                    .textinput
4127                    .getEditableText()
4128                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
4129            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
4130            lastCompletionLength = completion.length();
4131        } else {
4132            completionIndex = -1;
4133            this.binding
4134                    .textinput
4135                    .getEditableText()
4136                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
4137            lastCompletionLength = 0;
4138        }
4139        return true;
4140    }
4141
4142    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
4143        try {
4144            getActivity()
4145                    .startIntentSenderForResult(
4146                            pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0, Compatibility.pgpStartIntentSenderOptions());
4147        } catch (final SendIntentException ignored) {
4148        }
4149    }
4150
4151    @Override
4152    public void onBackendConnected() {
4153        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
4154        setupEmojiSearch();
4155        String uuid = pendingConversationsUuid.pop();
4156        if (uuid != null) {
4157            if (!findAndReInitByUuidOrArchive(uuid)) {
4158                return;
4159            }
4160        } else {
4161            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
4162                clearPending();
4163                activity.onConversationArchived(conversation);
4164                return;
4165            }
4166        }
4167        ActivityResult activityResult = postponedActivityResult.pop();
4168        if (activityResult != null) {
4169            handleActivityResult(activityResult);
4170        }
4171        clearPending();
4172    }
4173
4174    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
4175        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
4176        if (conversation == null) {
4177            clearPending();
4178            activity.onConversationArchived(null);
4179            return false;
4180        }
4181        reInit(conversation);
4182        ScrollState scrollState = pendingScrollState.pop();
4183        String lastMessageUuid = pendingLastMessageUuid.pop();
4184        List<Attachment> attachments = pendingMediaPreviews.pop();
4185        if (scrollState != null) {
4186            setScrollPosition(scrollState, lastMessageUuid);
4187        }
4188        if (attachments != null && attachments.size() > 0) {
4189            Log.d(Config.LOGTAG, "had attachments on restore");
4190            mediaPreviewAdapter.addMediaPreviews(attachments);
4191            toggleInputMethod();
4192        }
4193        return true;
4194    }
4195
4196    private void clearPending() {
4197        if (postponedActivityResult.clear()) {
4198            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
4199            if (pendingTakePhotoUri.clear()) {
4200                Log.e(Config.LOGTAG, "cleared pending photo uri");
4201            }
4202        }
4203        if (pendingScrollState.clear()) {
4204            Log.e(Config.LOGTAG, "cleared scroll state");
4205        }
4206        if (pendingConversationsUuid.clear()) {
4207            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
4208        }
4209        if (pendingMediaPreviews.clear()) {
4210            Log.e(Config.LOGTAG, "cleared pending media previews");
4211        }
4212    }
4213
4214    public Conversation getConversation() {
4215        return conversation;
4216    }
4217
4218    @Override
4219    public void onContactPictureLongClicked(View v, final Message message) {
4220        final String fingerprint;
4221        if (message.getEncryption() == Message.ENCRYPTION_PGP
4222                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
4223            fingerprint = "pgp";
4224        } else {
4225            fingerprint = message.getFingerprint();
4226        }
4227        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
4228        final Contact contact = message.getContact();
4229        if (message.getStatus() <= Message.STATUS_RECEIVED
4230                && (contact == null || !contact.isSelf())) {
4231            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
4232                final Jid cp = message.getCounterpart();
4233                if (cp == null || cp.isBareJid()) {
4234                    return;
4235                }
4236                final Jid tcp = message.getTrueCounterpart();
4237                final User userByRealJid =
4238                        tcp != null
4239                                ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp)
4240                                : null;
4241                final User user =
4242                        userByRealJid != null
4243                                ? userByRealJid
4244                                : conversation.getMucOptions().findUserByFullJid(cp);
4245                if (user == null) return;
4246                popupMenu.inflate(R.menu.muc_details_context);
4247                final Menu menu = popupMenu.getMenu();
4248                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(
4249                        activity, menu, conversation, user);
4250                popupMenu.setOnMenuItemClickListener(
4251                        menuItem ->
4252                                MucDetailsContextMenuHelper.onContextItemSelected(
4253                                        menuItem, user, activity, fingerprint));
4254            } else {
4255                popupMenu.inflate(R.menu.one_on_one_context);
4256                popupMenu.setOnMenuItemClickListener(
4257                        item -> {
4258                            switch (item.getItemId()) {
4259                                case R.id.action_contact_details:
4260                                    activity.switchToContactDetails(
4261                                            message.getContact(), fingerprint);
4262                                    break;
4263                                case R.id.action_show_qr_code:
4264                                    activity.showQrCode(
4265                                            "xmpp:"
4266                                                    + message.getContact()
4267                                                            .getJid()
4268                                                            .asBareJid()
4269                                                            .toEscapedString());
4270                                    break;
4271                            }
4272                            return true;
4273                        });
4274            }
4275        } else {
4276            popupMenu.inflate(R.menu.account_context);
4277            final Menu menu = popupMenu.getMenu();
4278            menu.findItem(R.id.action_manage_accounts)
4279                    .setVisible(QuickConversationsService.isConversations());
4280            popupMenu.setOnMenuItemClickListener(
4281                    item -> {
4282                        final XmppActivity activity = this.activity;
4283                        if (activity == null) {
4284                            Log.e(Config.LOGTAG, "Unable to perform action. no context provided");
4285                            return true;
4286                        }
4287                        switch (item.getItemId()) {
4288                            case R.id.action_show_qr_code:
4289                                activity.showQrCode(conversation.getAccount().getShareableUri());
4290                                break;
4291                            case R.id.action_account_details:
4292                                activity.switchToAccount(
4293                                        message.getConversation().getAccount(), fingerprint);
4294                                break;
4295                            case R.id.action_manage_accounts:
4296                                AccountUtils.launchManageAccounts(activity);
4297                                break;
4298                        }
4299                        return true;
4300                    });
4301        }
4302        popupMenu.show();
4303    }
4304
4305    @Override
4306    public void onContactPictureClicked(Message message) {
4307        setThread(message.getThread());
4308        if (message.isPrivateMessage()) {
4309            privateMessageWith(message.getCounterpart());
4310            return;
4311        }
4312        forkNullThread(message);
4313        conversation.setUserSelectedThread(true);
4314
4315        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
4316        if (received) {
4317            if (message.getConversation() instanceof Conversation
4318                    && message.getConversation().getMode() == Conversation.MODE_MULTI) {
4319                Jid tcp = message.getTrueCounterpart();
4320                Jid user = message.getCounterpart();
4321                if (user != null && !user.isBareJid()) {
4322                    final MucOptions mucOptions =
4323                            ((Conversation) message.getConversation()).getMucOptions();
4324                    if (mucOptions.participating()
4325                            || ((Conversation) message.getConversation()).getNextCounterpart()
4326                                    != null) {
4327                        MucOptions.User mucUser = mucOptions.findUserByFullJid(user);
4328                        MucOptions.User tcpMucUser = mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid());
4329                        if (mucUser == null && tcpMucUser == null) {
4330                            Toast.makeText(
4331                                            getActivity(),
4332                                            activity.getString(
4333                                                    R.string.user_has_left_conference,
4334                                                    user.getResource()),
4335                                            Toast.LENGTH_SHORT)
4336                                    .show();
4337                        }
4338                        highlightInConference(mucUser == null ? (tcpMucUser == null ? user.getResource() : tcpMucUser.getNick()) : mucUser.getNick());
4339                    } else {
4340                        Toast.makeText(
4341                                        getActivity(),
4342                                        R.string.you_are_not_participating,
4343                                        Toast.LENGTH_SHORT)
4344                                .show();
4345                    }
4346                }
4347            }
4348        }
4349    }
4350
4351    private Activity requireActivity() {
4352        final Activity activity = getActivity();
4353        if (activity == null) {
4354            throw new IllegalStateException("Activity not attached");
4355        }
4356        return activity;
4357    }
4358}