ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
   4import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
   5import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
   6import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
   7import static eu.siacs.conversations.utils.PermissionUtils.audioGranted;
   8import static eu.siacs.conversations.utils.PermissionUtils.cameraGranted;
   9import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
  10import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
  11
  12import android.Manifest;
  13import android.annotation.SuppressLint;
  14import android.app.Activity;
  15import android.app.Fragment;
  16import android.app.FragmentManager;
  17import android.app.PendingIntent;
  18import android.content.ActivityNotFoundException;
  19import android.content.Context;
  20import android.content.DialogInterface;
  21import android.content.Intent;
  22import android.content.IntentSender.SendIntentException;
  23import android.content.SharedPreferences;
  24import android.content.pm.PackageManager;
  25import android.net.Uri;
  26import android.os.Build;
  27import android.os.Bundle;
  28import android.os.Environment;
  29import android.os.Handler;
  30import android.os.Looper;
  31import android.os.storage.StorageManager;
  32import android.os.SystemClock;
  33import android.preference.PreferenceManager;
  34import android.provider.MediaStore;
  35import android.text.Editable;
  36import android.text.SpannableStringBuilder;
  37import android.text.TextUtils;
  38import android.text.TextWatcher;
  39import android.text.style.ImageSpan;
  40import android.util.DisplayMetrics;
  41import android.util.Log;
  42import android.view.ContextMenu;
  43import android.view.ContextMenu.ContextMenuInfo;
  44import android.view.Gravity;
  45import android.view.LayoutInflater;
  46import android.view.Menu;
  47import android.view.MenuInflater;
  48import android.view.MenuItem;
  49import android.view.MotionEvent;
  50import android.view.View;
  51import android.view.View.OnClickListener;
  52import android.view.ViewGroup;
  53import android.view.inputmethod.EditorInfo;
  54import android.view.inputmethod.InputMethodManager;
  55import android.view.WindowManager;
  56import android.widget.AbsListView;
  57import android.widget.AbsListView.OnScrollListener;
  58import android.widget.AdapterView;
  59import android.widget.AdapterView.AdapterContextMenuInfo;
  60import android.widget.CheckBox;
  61import android.widget.ListView;
  62import android.widget.PopupMenu;
  63import android.widget.PopupWindow;
  64import android.widget.TextView.OnEditorActionListener;
  65import android.widget.Toast;
  66
  67import androidx.activity.OnBackPressedCallback;
  68import androidx.annotation.IdRes;
  69import androidx.annotation.NonNull;
  70import androidx.annotation.Nullable;
  71import androidx.annotation.StringRes;
  72import androidx.appcompat.app.AlertDialog;
  73import androidx.core.content.pm.ShortcutInfoCompat;
  74import androidx.core.content.pm.ShortcutManagerCompat;
  75import androidx.core.view.inputmethod.InputConnectionCompat;
  76import androidx.core.view.inputmethod.InputContentInfoCompat;
  77import androidx.databinding.DataBindingUtil;
  78import androidx.documentfile.provider.DocumentFile;
  79import androidx.viewpager.widget.PagerAdapter;
  80import androidx.viewpager.widget.ViewPager;
  81
  82import com.cheogram.android.BobTransfer;
  83import com.cheogram.android.EmojiSearch;
  84import com.cheogram.android.WebxdcPage;
  85
  86import com.google.common.base.Optional;
  87import com.google.common.collect.ImmutableList;
  88
  89import org.jetbrains.annotations.NotNull;
  90
  91import io.ipfs.cid.Cid;
  92
  93import java.io.File;
  94import java.net.URISyntaxException;
  95import java.util.AbstractMap;
  96import java.util.ArrayList;
  97import java.util.Arrays;
  98import java.util.Collection;
  99import java.util.Collections;
 100import java.util.HashSet;
 101import java.util.Iterator;
 102import java.util.List;
 103import java.util.Map;
 104import java.util.Set;
 105import java.util.UUID;
 106import java.util.concurrent.atomic.AtomicBoolean;
 107import java.util.regex.Matcher;
 108import java.util.regex.Pattern;
 109
 110import eu.siacs.conversations.Config;
 111import eu.siacs.conversations.R;
 112import eu.siacs.conversations.crypto.axolotl.AxolotlService;
 113import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
 114import eu.siacs.conversations.databinding.EmojiSearchBinding;
 115import eu.siacs.conversations.databinding.FragmentConversationBinding;
 116import eu.siacs.conversations.entities.Account;
 117import eu.siacs.conversations.entities.Blockable;
 118import eu.siacs.conversations.entities.Contact;
 119import eu.siacs.conversations.entities.Conversation;
 120import eu.siacs.conversations.entities.Conversational;
 121import eu.siacs.conversations.entities.DownloadableFile;
 122import eu.siacs.conversations.entities.Message;
 123import eu.siacs.conversations.entities.MucOptions;
 124import eu.siacs.conversations.entities.MucOptions.User;
 125import eu.siacs.conversations.entities.Presence;
 126import eu.siacs.conversations.entities.Presences;
 127import eu.siacs.conversations.entities.ReadByMarker;
 128import eu.siacs.conversations.entities.Transferable;
 129import eu.siacs.conversations.entities.TransferablePlaceholder;
 130import eu.siacs.conversations.http.HttpDownloadConnection;
 131import eu.siacs.conversations.persistance.FileBackend;
 132import eu.siacs.conversations.services.MessageArchiveService;
 133import eu.siacs.conversations.services.QuickConversationsService;
 134import eu.siacs.conversations.services.XmppConnectionService;
 135import eu.siacs.conversations.ui.adapter.CommandAdapter;
 136import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
 137import eu.siacs.conversations.ui.adapter.MessageAdapter;
 138import eu.siacs.conversations.ui.util.ActivityResult;
 139import eu.siacs.conversations.ui.util.Attachment;
 140import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
 141import eu.siacs.conversations.ui.util.DateSeparator;
 142import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
 143import eu.siacs.conversations.ui.util.ListViewUtils;
 144import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 145import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 146import eu.siacs.conversations.ui.util.PendingItem;
 147import eu.siacs.conversations.ui.util.PresenceSelector;
 148import eu.siacs.conversations.ui.util.ScrollState;
 149import eu.siacs.conversations.ui.util.SendButtonAction;
 150import eu.siacs.conversations.ui.util.SendButtonTool;
 151import eu.siacs.conversations.ui.util.ShareUtil;
 152import eu.siacs.conversations.ui.util.StyledAttributes;
 153import eu.siacs.conversations.ui.util.ViewUtil;
 154import eu.siacs.conversations.ui.widget.EditMessage;
 155import eu.siacs.conversations.utils.AccountUtils;
 156import eu.siacs.conversations.utils.Compatibility;
 157import eu.siacs.conversations.utils.Emoticons;
 158import eu.siacs.conversations.utils.GeoHelper;
 159import eu.siacs.conversations.utils.MessageUtils;
 160import eu.siacs.conversations.utils.MimeUtils;
 161import eu.siacs.conversations.utils.NickValidityChecker;
 162import eu.siacs.conversations.utils.PermissionUtils;
 163import eu.siacs.conversations.utils.QuickLoader;
 164import eu.siacs.conversations.utils.StylingHelper;
 165import eu.siacs.conversations.utils.TimeFrameUtils;
 166import eu.siacs.conversations.utils.UIHelper;
 167import eu.siacs.conversations.xml.Element;
 168import eu.siacs.conversations.xml.Namespace;
 169import eu.siacs.conversations.xmpp.Jid;
 170import eu.siacs.conversations.xmpp.XmppConnection;
 171import eu.siacs.conversations.xmpp.chatstate.ChatState;
 172import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 173import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 174import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 175import eu.siacs.conversations.xmpp.jingle.Media;
 176import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 177import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 178import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 179
 180import org.jetbrains.annotations.NotNull;
 181
 182import java.util.ArrayList;
 183import java.util.Arrays;
 184import java.util.Collection;
 185import java.util.Collections;
 186import java.util.HashSet;
 187import java.util.Iterator;
 188import java.util.List;
 189import java.util.Set;
 190import java.util.UUID;
 191import java.util.concurrent.atomic.AtomicBoolean;
 192
 193import org.jetbrains.annotations.NotNull;
 194
 195import java.util.ArrayList;
 196import java.util.Arrays;
 197import java.util.Collection;
 198import java.util.Collections;
 199import java.util.HashSet;
 200import java.util.Iterator;
 201import java.util.List;
 202import java.util.Set;
 203import java.util.UUID;
 204import java.util.concurrent.atomic.AtomicBoolean;
 205
 206public class ConversationFragment extends XmppFragment
 207        implements EditMessage.KeyboardListener,
 208                MessageAdapter.OnContactPictureLongClicked,
 209                MessageAdapter.OnContactPictureClicked,
 210                MessageAdapter.OnInlineImageLongClicked {
 211
 212    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 213    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 214    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 215    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 216    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 217    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 218    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 219    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 220    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 221    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 222    public static final int REQUEST_SAVE_STICKER = 0x215;
 223    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 224    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 225    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 226    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 227    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 228    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 229    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 230
 231    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 232    public static final String STATE_CONVERSATION_UUID =
 233            ConversationFragment.class.getName() + ".uuid";
 234    public static final String STATE_SCROLL_POSITION =
 235            ConversationFragment.class.getName() + ".scroll_position";
 236    public static final String STATE_PHOTO_URI =
 237            ConversationFragment.class.getName() + ".media_previews";
 238    public static final String STATE_MEDIA_PREVIEWS =
 239            ConversationFragment.class.getName() + ".take_photo_uri";
 240    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 241
 242    private final List<Message> messageList = new ArrayList<>();
 243    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 244    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 245    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 246    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 247    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 248    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 249    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 250    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 251    public Uri mPendingEditorContent = null;
 252    protected MessageAdapter messageListAdapter;
 253    protected CommandAdapter commandAdapter;
 254    private MediaPreviewAdapter mediaPreviewAdapter;
 255    private String lastMessageUuid = null;
 256    private Conversation conversation;
 257    private FragmentConversationBinding binding;
 258    private Toast messageLoaderToast;
 259    private ConversationsActivity activity;
 260    private boolean reInitRequiredOnStart = true;
 261    private int identiconWidth = -1;
 262    private File savingAsSticker = null;
 263    private EmojiSearch emojiSearch = null;
 264    private EmojiSearchBinding emojiSearchBinding = null;
 265    private PopupWindow emojiPopup = null;
 266    private final OnClickListener clickToMuc =
 267            new OnClickListener() {
 268
 269                @Override
 270                public void onClick(View v) {
 271                    ConferenceDetailsActivity.open(getActivity(), conversation);
 272                }
 273            };
 274    private final OnClickListener leaveMuc =
 275            new OnClickListener() {
 276
 277                @Override
 278                public void onClick(View v) {
 279                    activity.xmppConnectionService.archiveConversation(conversation);
 280                }
 281            };
 282    private final OnClickListener joinMuc =
 283            new OnClickListener() {
 284
 285                @Override
 286                public void onClick(View v) {
 287                    activity.xmppConnectionService.joinMuc(conversation);
 288                }
 289            };
 290
 291    private final OnClickListener acceptJoin =
 292            new OnClickListener() {
 293                @Override
 294                public void onClick(View v) {
 295                    conversation.setAttribute("accept_non_anonymous", true);
 296                    activity.xmppConnectionService.updateConversation(conversation);
 297                    activity.xmppConnectionService.joinMuc(conversation);
 298                }
 299            };
 300
 301    private final OnClickListener enterPassword =
 302            new OnClickListener() {
 303
 304                @Override
 305                public void onClick(View v) {
 306                    MucOptions muc = conversation.getMucOptions();
 307                    String password = muc.getPassword();
 308                    if (password == null) {
 309                        password = "";
 310                    }
 311                    activity.quickPasswordEdit(
 312                            password,
 313                            value -> {
 314                                activity.xmppConnectionService.providePasswordForMuc(
 315                                        conversation, value);
 316                                return null;
 317                            });
 318                }
 319            };
 320    private final OnScrollListener mOnScrollListener =
 321            new OnScrollListener() {
 322
 323                @Override
 324                public void onScrollStateChanged(AbsListView view, int scrollState) {
 325                    if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 326                        updateThreadFromLastMessage();
 327                        fireReadEvent();
 328                    }
 329                }
 330
 331                @Override
 332                public void onScroll(
 333                        final AbsListView view,
 334                        int firstVisibleItem,
 335                        int visibleItemCount,
 336                        int totalItemCount) {
 337                    toggleScrollDownButton(view);
 338                    synchronized (ConversationFragment.this.messageList) {
 339                        if (firstVisibleItem < 5
 340                                && conversation != null
 341                                && conversation.messagesLoaded.compareAndSet(true, false)
 342                                && messageList.size() > 0) {
 343                            long timestamp = conversation.loadMoreTimestamp();
 344                            activity.xmppConnectionService.loadMoreMessages(
 345                                    conversation,
 346                                    timestamp,
 347                                    new XmppConnectionService.OnMoreMessagesLoaded() {
 348                                        @Override
 349                                        public void onMoreMessagesLoaded(
 350                                                final int c, final Conversation conversation) {
 351                                            if (ConversationFragment.this.conversation
 352                                                    != conversation) {
 353                                                conversation.messagesLoaded.set(true);
 354                                                return;
 355                                            }
 356                                            runOnUiThread(
 357                                                    () -> {
 358                                                        synchronized (messageList) {
 359                                                            final int oldPosition =
 360                                                                    binding.messagesView
 361                                                                            .getFirstVisiblePosition();
 362                                                            Message message = null;
 363                                                            int childPos;
 364                                                            for (childPos = 0;
 365                                                                    childPos + oldPosition
 366                                                                            < messageList.size();
 367                                                                    ++childPos) {
 368                                                                message =
 369                                                                        messageList.get(
 370                                                                                oldPosition
 371                                                                                        + childPos);
 372                                                                if (message.getType()
 373                                                                        != Message.TYPE_STATUS) {
 374                                                                    break;
 375                                                                }
 376                                                            }
 377                                                            final String uuid =
 378                                                                    message != null
 379                                                                            ? message.getUuid()
 380                                                                            : null;
 381                                                            View v =
 382                                                                    binding.messagesView.getChildAt(
 383                                                                            childPos);
 384                                                            final int pxOffset =
 385                                                                    (v == null) ? 0 : v.getTop();
 386                                                            ConversationFragment.this.conversation
 387                                                                    .populateWithMessages(
 388                                                                            ConversationFragment
 389                                                                                    .this
 390                                                                                    .messageList);
 391                                                            try {
 392                                                                updateStatusMessages();
 393                                                            } catch (IllegalStateException e) {
 394                                                                Log.d(
 395                                                                        Config.LOGTAG,
 396                                                                        "caught illegal state exception while updating status messages");
 397                                                            }
 398                                                            messageListAdapter
 399                                                                    .notifyDataSetChanged();
 400                                                            int pos =
 401                                                                    Math.max(
 402                                                                            getIndexOf(
 403                                                                                    uuid,
 404                                                                                    messageList),
 405                                                                            0);
 406                                                            binding.messagesView
 407                                                                    .setSelectionFromTop(
 408                                                                            pos, pxOffset);
 409                                                            if (messageLoaderToast != null) {
 410                                                                messageLoaderToast.cancel();
 411                                                            }
 412                                                            conversation.messagesLoaded.set(true);
 413                                                        }
 414                                                    });
 415                                        }
 416
 417                                        @Override
 418                                        public void informUser(final int resId) {
 419
 420                                            runOnUiThread(
 421                                                    () -> {
 422                                                        if (messageLoaderToast != null) {
 423                                                            messageLoaderToast.cancel();
 424                                                        }
 425                                                        if (ConversationFragment.this.conversation
 426                                                                != conversation) {
 427                                                            return;
 428                                                        }
 429                                                        messageLoaderToast =
 430                                                                Toast.makeText(
 431                                                                        view.getContext(),
 432                                                                        resId,
 433                                                                        Toast.LENGTH_LONG);
 434                                                        messageLoaderToast.show();
 435                                                    });
 436                                        }
 437                                    });
 438                        }
 439                    }
 440                }
 441            };
 442    private final EditMessage.OnCommitContentListener mEditorContentListener =
 443            new EditMessage.OnCommitContentListener() {
 444                @Override
 445                public boolean onCommitContent(
 446                        InputContentInfoCompat inputContentInfo,
 447                        int flags,
 448                        Bundle opts,
 449                        String[] contentMimeTypes) {
 450                    // try to get permission to read the image, if applicable
 451                    if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION)
 452                            != 0) {
 453                        try {
 454                            inputContentInfo.requestPermission();
 455                        } catch (Exception e) {
 456                            Log.e(
 457                                    Config.LOGTAG,
 458                                    "InputContentInfoCompat#requestPermission() failed.",
 459                                    e);
 460                            Toast.makeText(
 461                                            getActivity(),
 462                                            activity.getString(
 463                                                    R.string.no_permission_to_access_x,
 464                                                    inputContentInfo.getDescription()),
 465                                            Toast.LENGTH_LONG)
 466                                    .show();
 467                            return false;
 468                        }
 469                    }
 470                    if (hasPermissions(
 471                            REQUEST_ADD_EDITOR_CONTENT,
 472                            Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 473                        attachEditorContentToConversation(inputContentInfo.getContentUri());
 474                    } else {
 475                        mPendingEditorContent = inputContentInfo.getContentUri();
 476                    }
 477                    return true;
 478                }
 479            };
 480    private Message selectedMessage;
 481    private final OnClickListener mEnableAccountListener =
 482            new OnClickListener() {
 483                @Override
 484                public void onClick(View v) {
 485                    final Account account = conversation == null ? null : conversation.getAccount();
 486                    if (account != null) {
 487                        account.setOption(Account.OPTION_SOFT_DISABLED, false);
 488                        account.setOption(Account.OPTION_DISABLED, false);
 489                        activity.xmppConnectionService.updateAccount(account);
 490                    }
 491                }
 492            };
 493    private final OnClickListener mUnblockClickListener =
 494            new OnClickListener() {
 495                @Override
 496                public void onClick(final View v) {
 497                    v.post(() -> v.setVisibility(View.INVISIBLE));
 498                    if (conversation.isDomainBlocked()) {
 499                        BlockContactDialog.show(activity, conversation);
 500                    } else {
 501                        unblockConversation(conversation);
 502                    }
 503                }
 504            };
 505    private final OnClickListener mBlockClickListener = this::showBlockSubmenu;
 506    private final OnClickListener mAddBackClickListener =
 507            new OnClickListener() {
 508
 509                @Override
 510                public void onClick(View v) {
 511                    final Contact contact = conversation == null ? null : conversation.getContact();
 512                    if (contact != null) {
 513                        activity.xmppConnectionService.createContact(contact, true);
 514                        activity.switchToContactDetails(contact);
 515                    }
 516                }
 517            };
 518    private final View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 519    private final OnClickListener mAllowPresenceSubscription =
 520            new OnClickListener() {
 521                @Override
 522                public void onClick(View v) {
 523                    final Contact contact = conversation == null ? null : conversation.getContact();
 524                    if (contact != null) {
 525                        activity.xmppConnectionService.sendPresencePacket(
 526                                contact.getAccount(),
 527                                activity.xmppConnectionService
 528                                        .getPresenceGenerator()
 529                                        .sendPresenceUpdatesTo(contact));
 530                        hideSnackbar();
 531                    }
 532                }
 533            };
 534    protected OnClickListener clickToDecryptListener =
 535            new OnClickListener() {
 536
 537                @Override
 538                public void onClick(View v) {
 539                    PendingIntent pendingIntent =
 540                            conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 541                    if (pendingIntent != null) {
 542                        try {
 543                            getActivity()
 544                                    .startIntentSenderForResult(
 545                                            pendingIntent.getIntentSender(),
 546                                            REQUEST_DECRYPT_PGP,
 547                                            null,
 548                                            0,
 549                                            0,
 550                                            0,
 551                                            Compatibility.pgpStartIntentSenderOptions());
 552                        } catch (SendIntentException e) {
 553                            Toast.makeText(
 554                                            getActivity(),
 555                                            R.string.unable_to_connect_to_keychain,
 556                                            Toast.LENGTH_SHORT)
 557                                    .show();
 558                            conversation
 559                                    .getAccount()
 560                                    .getPgpDecryptionService()
 561                                    .continueDecryption(true);
 562                        }
 563                    }
 564                    updateSnackBar(conversation);
 565                }
 566            };
 567    private final AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 568    private final OnEditorActionListener mEditorActionListener =
 569            (v, actionId, event) -> {
 570                if (actionId == EditorInfo.IME_ACTION_SEND) {
 571                    InputMethodManager imm =
 572                            (InputMethodManager)
 573                                    activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 574                    if (imm != null && imm.isFullscreenMode()) {
 575                        imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 576                    }
 577                    sendMessage();
 578                    return true;
 579                } else {
 580                    return false;
 581                }
 582            };
 583    private final OnClickListener mScrollButtonListener =
 584            new OnClickListener() {
 585
 586                @Override
 587                public void onClick(View v) {
 588                    stopScrolling();
 589                    setSelection(binding.messagesView.getCount() - 1, true);
 590                }
 591            };
 592    private final OnClickListener mSendButtonListener =
 593            new OnClickListener() {
 594
 595                @Override
 596                public void onClick(View v) {
 597                    Object tag = v.getTag();
 598                    if (tag instanceof SendButtonAction) {
 599                        SendButtonAction action = (SendButtonAction) tag;
 600                        switch (action) {
 601                            case TAKE_PHOTO:
 602                            case RECORD_VIDEO:
 603                            case SEND_LOCATION:
 604                            case RECORD_VOICE:
 605                            case CHOOSE_PICTURE:
 606                                attachFile(action.toChoice());
 607                                break;
 608                            case CANCEL:
 609                                if (conversation != null) {
 610                                    conversation.setUserSelectedThread(false);
 611                                    if (conversation.setCorrectingMessage(null)) {
 612                                        binding.textinput.setText("");
 613                                        binding.textinput.append(conversation.getDraftMessage());
 614                                        conversation.setDraftMessage(null);
 615                                    } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 616                                        conversation.setNextCounterpart(null);
 617                                        binding.textinput.setText("");
 618                                    } else {
 619                                        binding.textinput.setText("");
 620                                    }
 621                                    updateChatMsgHint();
 622                                    updateSendButton();
 623                                    updateEditablity();
 624                                }
 625                                break;
 626                            default:
 627                                sendMessage();
 628                        }
 629                    } else {
 630                        sendMessage();
 631                    }
 632                }
 633            };
 634    private OnBackPressedCallback backPressedLeaveSingleThread = new OnBackPressedCallback(false) {
 635        @Override
 636        public void handleOnBackPressed() {
 637            conversation.setLockThread(false);
 638            this.setEnabled(false);
 639            conversation.setUserSelectedThread(false);
 640            setThread(null);
 641            refresh();
 642            updateThreadFromLastMessage();
 643        }
 644    };
 645    private int completionIndex = 0;
 646    private int lastCompletionLength = 0;
 647    private String incomplete;
 648    private int lastCompletionCursor;
 649    private boolean firstWord = false;
 650    private Message mPendingDownloadableMessage;
 651
 652    private static ConversationFragment findConversationFragment(Activity activity) {
 653        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 654        if (fragment instanceof ConversationFragment) {
 655            return (ConversationFragment) fragment;
 656        }
 657        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 658        if (fragment instanceof ConversationFragment) {
 659            return (ConversationFragment) fragment;
 660        }
 661        return null;
 662    }
 663
 664    public static void startStopPending(Activity activity) {
 665        ConversationFragment fragment = findConversationFragment(activity);
 666        if (fragment != null) {
 667            fragment.messageListAdapter.startStopPending();
 668        }
 669    }
 670
 671    public static void downloadFile(Activity activity, Message message) {
 672        ConversationFragment fragment = findConversationFragment(activity);
 673        if (fragment != null) {
 674            fragment.startDownloadable(message);
 675        }
 676    }
 677
 678    public static void registerPendingMessage(Activity activity, Message message) {
 679        ConversationFragment fragment = findConversationFragment(activity);
 680        if (fragment != null) {
 681            fragment.pendingMessage.push(message);
 682        }
 683    }
 684
 685    public static void openPendingMessage(Activity activity) {
 686        ConversationFragment fragment = findConversationFragment(activity);
 687        if (fragment != null) {
 688            Message message = fragment.pendingMessage.pop();
 689            if (message != null) {
 690                fragment.messageListAdapter.openDownloadable(message);
 691            }
 692        }
 693    }
 694
 695    public static Conversation getConversation(Activity activity) {
 696        return getConversation(activity, R.id.secondary_fragment);
 697    }
 698
 699    private static Conversation getConversation(Activity activity, @IdRes int res) {
 700        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 701        if (fragment instanceof ConversationFragment) {
 702            return ((ConversationFragment) fragment).getConversation();
 703        } else {
 704            return null;
 705        }
 706    }
 707
 708    public static ConversationFragment get(Activity activity) {
 709        FragmentManager fragmentManager = activity.getFragmentManager();
 710        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 711        if (fragment instanceof ConversationFragment) {
 712            return (ConversationFragment) fragment;
 713        } else {
 714            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 715            return fragment instanceof ConversationFragment
 716                    ? (ConversationFragment) fragment
 717                    : null;
 718        }
 719    }
 720
 721    public static Conversation getConversationReliable(Activity activity) {
 722        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 723        if (conversation != null) {
 724            return conversation;
 725        }
 726        return getConversation(activity, R.id.main_fragment);
 727    }
 728
 729    private static boolean scrolledToBottom(AbsListView listView) {
 730        final int count = listView.getCount();
 731        if (count == 0) {
 732            return true;
 733        } else if (listView.getLastVisiblePosition() == count - 1) {
 734            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 735            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 736        } else {
 737            return false;
 738        }
 739    }
 740
 741    private void toggleScrollDownButton() {
 742        toggleScrollDownButton(binding.messagesView);
 743    }
 744
 745    private void toggleScrollDownButton(AbsListView listView) {
 746        if (conversation == null) {
 747            return;
 748        }
 749        if (scrolledToBottom(listView)) {
 750            lastMessageUuid = null;
 751            hideUnreadMessagesCount();
 752        } else {
 753            binding.scrollToBottomButton.setEnabled(true);
 754            binding.scrollToBottomButton.show();
 755            if (lastMessageUuid == null) {
 756                lastMessageUuid = conversation.getLatestMessage().getUuid();
 757            }
 758            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 759                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 760            }
 761        }
 762    }
 763
 764    private int getIndexOf(String uuid, List<Message> messages) {
 765        if (uuid == null) {
 766            return messages.size() - 1;
 767        }
 768        for (int i = 0; i < messages.size(); ++i) {
 769            if (uuid.equals(messages.get(i).getUuid())) {
 770                return i;
 771            } else {
 772                Message next = messages.get(i);
 773                while (next != null && next.wasMergedIntoPrevious()) {
 774                    if (uuid.equals(next.getUuid())) {
 775                        return i;
 776                    }
 777                    next = next.next();
 778                }
 779            }
 780        }
 781        return -1;
 782    }
 783
 784    private ScrollState getScrollPosition() {
 785        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 786        if (listView == null
 787                || listView.getCount() == 0
 788                || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 789            return null;
 790        } else {
 791            final int pos = listView.getFirstVisiblePosition();
 792            final View view = listView.getChildAt(0);
 793            if (view == null) {
 794                return null;
 795            } else {
 796                return new ScrollState(pos, view.getTop());
 797            }
 798        }
 799    }
 800
 801    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 802        if (scrollPosition != null) {
 803
 804            this.lastMessageUuid = lastMessageUuid;
 805            if (lastMessageUuid != null) {
 806                binding.unreadCountCustomView.setUnreadCount(
 807                        conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 808            }
 809            // TODO maybe this needs a 'post'
 810            this.binding.messagesView.setSelectionFromTop(
 811                    scrollPosition.position, scrollPosition.offset);
 812            toggleScrollDownButton();
 813        }
 814    }
 815
 816    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 817        if (conversation == null) {
 818            return;
 819        }
 820        activity.xmppConnectionService.attachLocationToConversation(
 821                conversation,
 822                uri,
 823                new UiCallback<Message>() {
 824
 825                    @Override
 826                    public void success(Message message) {}
 827
 828                    @Override
 829                    public void error(int errorCode, Message object) {
 830                        // TODO show possible pgp error
 831                    }
 832
 833                    @Override
 834                    public void userInputRequired(PendingIntent pi, Message object) {}
 835                });
 836    }
 837
 838    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 839        if (conversation == null) {
 840            return;
 841        }
 842        if (type == "application/xdc+zip") newSubThread();
 843        final Toast prepareFileToast =
 844                Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 845        prepareFileToast.show();
 846        activity.delegateUriPermissionsToService(uri);
 847        activity.xmppConnectionService.attachFileToConversation(
 848                conversation,
 849                uri,
 850                type,
 851                new UiInformableCallback<Message>() {
 852                    @Override
 853                    public void inform(final String text) {
 854                        hidePrepareFileToast(prepareFileToast);
 855                        runOnUiThread(() -> activity.replaceToast(text));
 856                    }
 857
 858                    @Override
 859                    public void success(Message message) {
 860                        runOnUiThread(() -> {
 861                            activity.hideToast();
 862                            setupReply(null);
 863                        });
 864                        hidePrepareFileToast(prepareFileToast);
 865                    }
 866
 867                    @Override
 868                    public void error(final int errorCode, Message message) {
 869                        hidePrepareFileToast(prepareFileToast);
 870                        runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 871                    }
 872
 873                    @Override
 874                    public void userInputRequired(PendingIntent pi, Message message) {
 875                        hidePrepareFileToast(prepareFileToast);
 876                    }
 877                });
 878    }
 879
 880    public void attachEditorContentToConversation(Uri uri) {
 881        mediaPreviewAdapter.addMediaPreviews(
 882                Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 883        toggleInputMethod();
 884    }
 885
 886    private void attachImageToConversation(Conversation conversation, Uri uri, String type) {
 887        if (conversation == null) {
 888            return;
 889        }
 890        final Toast prepareFileToast =
 891                Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 892        prepareFileToast.show();
 893        activity.delegateUriPermissionsToService(uri);
 894        activity.xmppConnectionService.attachImageToConversation(
 895                conversation,
 896                uri,
 897                type,
 898                new UiCallback<Message>() {
 899
 900                    @Override
 901                    public void userInputRequired(PendingIntent pi, Message object) {
 902                        hidePrepareFileToast(prepareFileToast);
 903                    }
 904
 905                    @Override
 906                    public void success(Message message) {
 907                        hidePrepareFileToast(prepareFileToast);
 908                        runOnUiThread(() -> setupReply(null));
 909                    }
 910
 911                    @Override
 912                    public void error(final int error, final Message message) {
 913                        hidePrepareFileToast(prepareFileToast);
 914                        final ConversationsActivity activity = ConversationFragment.this.activity;
 915                        if (activity == null) {
 916                            return;
 917                        }
 918                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 919                    }
 920                });
 921    }
 922
 923    private void hidePrepareFileToast(final Toast prepareFileToast) {
 924        if (prepareFileToast != null && activity != null) {
 925            activity.runOnUiThread(prepareFileToast::cancel);
 926        }
 927    }
 928
 929    private void sendMessage() {
 930        if (mediaPreviewAdapter.hasAttachments()) {
 931            commitAttachments();
 932            return;
 933        }
 934        Editable body = this.binding.textinput.getText();
 935        if (body == null) body = new SpannableStringBuilder("");
 936        final Conversation conversation = this.conversation;
 937        if (body.length() == 0 || conversation == null) {
 938            binding.textSendButton.showContextMenu(0, 0);
 939            return;
 940        }
 941        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_TEXT)) {
 942            return;
 943        }
 944        final Message message;
 945        if (conversation.getCorrectingMessage() == null) {
 946            boolean attention = false;
 947            if (Pattern.compile("\\A@here\\s.*").matcher(body).find()) {
 948                attention = true;
 949                body.delete(0, 6);
 950                while (body.length() > 0 && Character.isWhitespace(body.charAt(0))) body.delete(0, 1);
 951            }
 952            if (conversation.getReplyTo() != null) {
 953                if (Emoticons.isEmoji(body.toString().replaceAll("\\s", ""))) {
 954                    message = conversation.getReplyTo().react(body.toString().replaceAll("\\s", ""));
 955                } else {
 956                    message = conversation.getReplyTo().reply();
 957                    message.appendBody(body);
 958                }
 959                message.setEncryption(conversation.getNextEncryption());
 960            } else {
 961                message = new Message(conversation, body.toString(), conversation.getNextEncryption());
 962                message.setBody(body);
 963                if (message.bodyIsOnlyEmojis()) {
 964                    SpannableStringBuilder spannable = message.getSpannableBody(null, null);
 965                    ImageSpan[] imageSpans = spannable.getSpans(0, spannable.length(), ImageSpan.class);
 966                    if (imageSpans.length == 1) {
 967                        // Only one inline image, so it's a sticker
 968                        String source = imageSpans[0].getSource();
 969                        if (source != null && source.length() > 0 && source.substring(0, 4).equals("cid:")) {
 970                            try {
 971                                final Cid cid = BobTransfer.cid(Uri.parse(source));
 972                                final String url = activity.xmppConnectionService.getUrlForCid(cid);
 973                                final File f = activity.xmppConnectionService.getFileForCid(cid);
 974                                if (url != null) {
 975                                    message.setBody("");
 976                                    message.setRelativeFilePath(f.getAbsolutePath());
 977                                    activity.xmppConnectionService.getFileBackend().updateFileParams(message);
 978                                }
 979                            } catch (final Exception e) { }
 980                        }
 981                    }
 982                }
 983            }
 984            message.setThread(conversation.getThread());
 985            if (attention) {
 986                message.addPayload(new Element("attention", "urn:xmpp:attention:0"));
 987            }
 988            Message.configurePrivateMessage(message);
 989        } else {
 990            message = conversation.getCorrectingMessage();
 991            message.setBody(body);
 992            message.setThread(conversation.getThread());
 993            message.putEdited(message.getUuid(), message.getServerMsgId());
 994            message.setServerMsgId(null);
 995            message.setUuid(UUID.randomUUID().toString());
 996        }
 997        switch (conversation.getNextEncryption()) {
 998            case Message.ENCRYPTION_PGP:
 999                sendPgpMessage(message);
1000                break;
1001            default:
1002                sendMessage(message);
1003        }
1004        setupReply(null);
1005    }
1006
1007    private boolean trustKeysIfNeeded(final Conversation conversation, final int requestCode) {
1008        return conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL
1009                && trustKeysIfNeeded(requestCode);
1010    }
1011
1012    protected boolean trustKeysIfNeeded(int requestCode) {
1013        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
1014        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
1015        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
1016        boolean hasUndecidedOwn =
1017                !axolotlService
1018                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided())
1019                        .isEmpty();
1020        boolean hasUndecidedContacts =
1021                !axolotlService
1022                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets)
1023                        .isEmpty();
1024        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
1025        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
1026        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
1027        if (hasUndecidedOwn
1028                || hasUndecidedContacts
1029                || hasPendingKeys
1030                || hasNoTrustedKeys
1031                || hasUnaccepted
1032                || downloadInProgress) {
1033            axolotlService.createSessionsIfNeeded(conversation);
1034            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
1035            String[] contacts = new String[targets.size()];
1036            for (int i = 0; i < contacts.length; ++i) {
1037                contacts[i] = targets.get(i).toString();
1038            }
1039            intent.putExtra("contacts", contacts);
1040            intent.putExtra(
1041                    EXTRA_ACCOUNT,
1042                    conversation.getAccount().getJid().asBareJid().toEscapedString());
1043            intent.putExtra("conversation", conversation.getUuid());
1044            startActivityForResult(intent, requestCode);
1045            return true;
1046        } else {
1047            return false;
1048        }
1049    }
1050
1051    public void updateChatMsgHint() {
1052        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
1053        if (conversation.getCorrectingMessage() != null) {
1054            this.binding.textInputHint.setVisibility(View.GONE);
1055            this.binding.textinput.setHint(R.string.send_corrected_message);
1056            binding.conversationViewPager.setCurrentItem(0);
1057        } else if (multi && conversation.getNextCounterpart() != null) {
1058            this.binding.textinput.setHint(R.string.send_message);
1059            this.binding.textInputHint.setVisibility(View.VISIBLE);
1060            final MucOptions.User user = conversation.getMucOptions().findUserByName(conversation.getNextCounterpart().getResource());
1061            String nick = user == null ? null : user.getNick();
1062            if (nick == null) nick = conversation.getNextCounterpart().getResource();
1063            this.binding.textInputHint.setText(
1064                    getString(
1065                            R.string.send_private_message_to,
1066                            nick));
1067            binding.conversationViewPager.setCurrentItem(0);
1068        } else if (multi && !conversation.getMucOptions().participating()) {
1069            this.binding.textInputHint.setVisibility(View.GONE);
1070            this.binding.textinput.setHint(R.string.you_are_not_participating);
1071        } else {
1072            this.binding.textInputHint.setVisibility(View.GONE);
1073            this.binding.textinput.setHint(UIHelper.getMessageHint(activity, conversation));
1074            activity.invalidateOptionsMenu();
1075        }
1076
1077        binding.messagesView.post(this::updateThreadFromLastMessage);
1078    }
1079
1080    public void setupIme() {
1081        this.binding.textinput.refreshIme();
1082    }
1083
1084    private void handleActivityResult(ActivityResult activityResult) {
1085        if (activityResult.resultCode == Activity.RESULT_OK) {
1086            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
1087        } else {
1088            handleNegativeActivityResult(activityResult.requestCode);
1089        }
1090    }
1091
1092    private void handlePositiveActivityResult(int requestCode, final Intent data) {
1093        switch (requestCode) {
1094            case REQUEST_SAVE_STICKER:
1095                final DocumentFile df = DocumentFile.fromSingleUri(activity, data.getData());
1096                final File f = savingAsSticker;
1097                savingAsSticker = null;
1098                try {
1099                    activity.xmppConnectionService.getFileBackend().copyFileToDocumentFile(activity, f, df);
1100                    Toast.makeText(activity, "Sticker saved", Toast.LENGTH_SHORT).show();
1101                } catch (final FileBackend.FileCopyException e) {
1102                    Toast.makeText(activity, e.getResId(), Toast.LENGTH_SHORT).show();
1103                }
1104                break;
1105            case REQUEST_TRUST_KEYS_TEXT:
1106                sendMessage();
1107                break;
1108            case REQUEST_TRUST_KEYS_ATTACHMENTS:
1109                commitAttachments();
1110                break;
1111            case REQUEST_START_AUDIO_CALL:
1112                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1113                break;
1114            case REQUEST_START_VIDEO_CALL:
1115                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1116                break;
1117            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1118                final List<Attachment> imageUris =
1119                        Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
1120                mediaPreviewAdapter.addMediaPreviews(imageUris);
1121                toggleInputMethod();
1122                break;
1123            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1124                final Uri takePhotoUri = pendingTakePhotoUri.pop();
1125                if (takePhotoUri != null) {
1126                    mediaPreviewAdapter.addMediaPreviews(
1127                            Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
1128                    toggleInputMethod();
1129                } else {
1130                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
1131                }
1132                break;
1133            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1134            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1135            case ATTACHMENT_CHOICE_RECORD_VOICE:
1136                final Attachment.Type type =
1137                        requestCode == ATTACHMENT_CHOICE_RECORD_VOICE
1138                                ? Attachment.Type.RECORDING
1139                                : Attachment.Type.FILE;
1140                final List<Attachment> fileUris =
1141                        Attachment.extractAttachments(getActivity(), data, type);
1142                mediaPreviewAdapter.addMediaPreviews(fileUris);
1143                toggleInputMethod();
1144                break;
1145            case ATTACHMENT_CHOICE_LOCATION:
1146                final double latitude = data.getDoubleExtra("latitude", 0);
1147                final double longitude = data.getDoubleExtra("longitude", 0);
1148                final int accuracy = data.getIntExtra("accuracy", 0);
1149                final Uri geo;
1150                if (accuracy > 0) {
1151                    geo = Uri.parse(String.format("geo:%s,%s;u=%s", latitude, longitude, accuracy));
1152                } else {
1153                    geo = Uri.parse(String.format("geo:%s,%s", latitude, longitude));
1154                }
1155                mediaPreviewAdapter.addMediaPreviews(
1156                        Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
1157                toggleInputMethod();
1158                break;
1159            case REQUEST_INVITE_TO_CONVERSATION:
1160                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
1161                if (invite != null) {
1162                    if (invite.execute(activity)) {
1163                        activity.mToast =
1164                                Toast.makeText(
1165                                        activity, R.string.creating_conference, Toast.LENGTH_LONG);
1166                        activity.mToast.show();
1167                    }
1168                }
1169                break;
1170        }
1171    }
1172
1173    private void commitAttachments() {
1174        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
1175        if (anyNeedsExternalStoragePermission(attachments)
1176                && !hasPermissions(
1177                        REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1178            return;
1179        }
1180        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_ATTACHMENTS)) {
1181            return;
1182        }
1183        final PresenceSelector.OnPresenceSelected callback =
1184                () -> {
1185                    for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
1186                        final Attachment attachment = i.next();
1187                        if (attachment.getType() == Attachment.Type.LOCATION) {
1188                            attachLocationToConversation(conversation, attachment.getUri());
1189                        } else if (attachment.getType() == Attachment.Type.IMAGE) {
1190                            Log.d(
1191                                    Config.LOGTAG,
1192                                    "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
1193                            attachImageToConversation(
1194                                    conversation, attachment.getUri(), attachment.getMime());
1195                        } else {
1196                            Log.d(
1197                                    Config.LOGTAG,
1198                                    "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
1199                            attachFileToConversation(
1200                                    conversation, attachment.getUri(), attachment.getMime());
1201                        }
1202                    }
1203                    mediaPreviewAdapter.notifyDataSetChanged();
1204                    toggleInputMethod();
1205                };
1206        if (conversation == null
1207                || conversation.getMode() == Conversation.MODE_MULTI
1208                || Attachment.canBeSendInband(attachments)
1209                || (conversation.getAccount().httpUploadAvailable()
1210                        && FileBackend.allFilesUnderSize(
1211                                getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
1212            callback.onPresenceSelected();
1213        } else {
1214            activity.selectPresence(conversation, callback);
1215        }
1216    }
1217
1218    private static boolean anyNeedsExternalStoragePermission(
1219            final Collection<Attachment> attachments) {
1220        for (final Attachment attachment : attachments) {
1221            if (attachment.getType() != Attachment.Type.LOCATION) {
1222                return true;
1223            }
1224        }
1225        return false;
1226    }
1227
1228    public void toggleInputMethod() {
1229        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
1230        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
1231        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
1232        updateSendButton();
1233    }
1234
1235    private void handleNegativeActivityResult(int requestCode) {
1236        switch (requestCode) {
1237            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1238                if (pendingTakePhotoUri.clear()) {
1239                    Log.d(
1240                            Config.LOGTAG,
1241                            "cleared pending photo uri after negative activity result");
1242                }
1243                break;
1244        }
1245    }
1246
1247    @Override
1248    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
1249        super.onActivityResult(requestCode, resultCode, data);
1250        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
1251        if (activity != null && activity.xmppConnectionService != null) {
1252            handleActivityResult(activityResult);
1253        } else {
1254            this.postponedActivityResult.push(activityResult);
1255        }
1256    }
1257
1258    public void unblockConversation(final Blockable conversation) {
1259        activity.xmppConnectionService.sendUnblockRequest(conversation);
1260    }
1261
1262    @Override
1263    public void onAttach(Activity activity) {
1264        super.onAttach(activity);
1265        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
1266        if (activity instanceof ConversationsActivity) {
1267            this.activity = (ConversationsActivity) activity;
1268        } else {
1269            throw new IllegalStateException(
1270                    "Trying to attach fragment to activity that is not the ConversationsActivity");
1271        }
1272    }
1273
1274    @Override
1275    public void onDetach() {
1276        super.onDetach();
1277        this.activity = null; // TODO maybe not a good idea since some callbacks really need it
1278    }
1279
1280    @Override
1281    public void onCreate(Bundle savedInstanceState) {
1282        super.onCreate(savedInstanceState);
1283        setHasOptionsMenu(true);
1284        activity.getOnBackPressedDispatcher().addCallback(this, backPressedLeaveSingleThread);
1285    }
1286
1287    @Override
1288    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
1289        if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.isOnboarding()) return;
1290
1291        menuInflater.inflate(R.menu.fragment_conversation, menu);
1292        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
1293        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
1294        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
1295        final MenuItem menuMute = menu.findItem(R.id.action_mute);
1296        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
1297        final MenuItem menuCall = menu.findItem(R.id.action_call);
1298        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
1299        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
1300        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
1301
1302        if (conversation != null) {
1303            if (conversation.getMode() == Conversation.MODE_MULTI) {
1304                menuContactDetails.setVisible(false);
1305                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
1306                menuMucDetails.setTitle(
1307                        conversation.getMucOptions().isPrivateAndNonAnonymous()
1308                                ? R.string.action_muc_details
1309                                : R.string.channel_details);
1310                menuCall.setVisible(false);
1311                menuOngoingCall.setVisible(false);
1312            } else {
1313                final XmppConnectionService service =
1314                        activity == null ? null : activity.xmppConnectionService;
1315                final Optional<OngoingRtpSession> ongoingRtpSession =
1316                        service == null
1317                                ? Optional.absent()
1318                                : service.getJingleConnectionManager()
1319                                        .getOngoingRtpConnection(conversation.getContact());
1320                if (ongoingRtpSession.isPresent()) {
1321                    menuOngoingCall.setVisible(true);
1322                    menuCall.setVisible(false);
1323                } else {
1324                    menuOngoingCall.setVisible(false);
1325                    final RtpCapability.Capability rtpCapability =
1326                            RtpCapability.check(conversation.getContact());
1327                    final boolean cameraAvailable =
1328                            activity != null && activity.isCameraFeatureAvailable();
1329                    menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
1330                    menuVideoCall.setVisible(
1331                            rtpCapability == RtpCapability.Capability.VIDEO && cameraAvailable);
1332                }
1333                menuContactDetails.setVisible(!this.conversation.withSelf());
1334                menuMucDetails.setVisible(false);
1335                menuInviteContact.setVisible(
1336                        service != null
1337                                && service.findConferenceServer(conversation.getAccount()) != null);
1338            }
1339            if (conversation.isMuted()) {
1340                menuMute.setVisible(false);
1341            } else {
1342                menuUnmute.setVisible(false);
1343            }
1344            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1345            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1346            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1347                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1348            } else {
1349                menuTogglePinned.setTitle(R.string.add_to_favorites);
1350            }
1351        }
1352        super.onCreateOptionsMenu(menu, menuInflater);
1353    }
1354
1355    @Override
1356    public View onCreateView(
1357            final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1358        this.binding =
1359                DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1360        binding.getRoot().setOnClickListener(null); // TODO why the fuck did we do this?
1361
1362        binding.textinput.addTextChangedListener(
1363                new StylingHelper.MessageEditorStyler(binding.textinput));
1364
1365        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1366        binding.textinput.setRichContentListener(new String[] {"image/*"}, mEditorContentListener);
1367        DisplayMetrics displayMetrics = new DisplayMetrics();
1368        activity.getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
1369        if (displayMetrics.heightPixels > 0) binding.textinput.setMaxHeight(displayMetrics.heightPixels / 4);
1370
1371        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1372        binding.contextPreviewCancel.setOnClickListener((v) -> {
1373            setThread(null);
1374            conversation.setUserSelectedThread(false);
1375            setupReply(null);
1376        });
1377        binding.requestVoice.setOnClickListener((v) -> {
1378            activity.xmppConnectionService.requestVoice(conversation.getAccount(), conversation.getJid());
1379            binding.requestVoice.setVisibility(View.GONE);
1380        });
1381
1382        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1383        binding.messagesView.setOnScrollListener(mOnScrollListener);
1384        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1385        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1386        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1387        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1388        messageListAdapter.setOnContactPictureClicked(this);
1389        messageListAdapter.setOnContactPictureLongClicked(this);
1390        messageListAdapter.setOnInlineImageLongClicked(this);
1391        messageListAdapter.setConversationFragment(this);
1392        binding.messagesView.setAdapter(messageListAdapter);
1393
1394        registerForContextMenu(binding.messagesView);
1395        registerForContextMenu(binding.textSendButton);
1396
1397        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1398            this.binding.textinput.setCustomInsertionActionModeCallback(
1399                    new EditMessageActionModeCallback(this.binding.textinput));
1400        }
1401
1402        messageListAdapter.setOnMessageBoxClicked(message -> {
1403            if (message.isPrivateMessage()) privateMessageWith(message.getCounterpart());
1404            setThread(message.getThread());
1405            conversation.setUserSelectedThread(true);
1406        });
1407
1408        messageListAdapter.setOnMessageBoxSwiped(message -> {
1409            quoteMessage(message);
1410        });
1411
1412        binding.threadIdenticonLayout.setOnClickListener(v -> {
1413            boolean wasLocked = conversation.getLockThread();
1414            conversation.setLockThread(false);
1415            backPressedLeaveSingleThread.setEnabled(false);
1416            if (wasLocked) {
1417                setThread(null);
1418                conversation.setUserSelectedThread(false);
1419                refresh();
1420                updateThreadFromLastMessage();
1421            } else {
1422                newThread();
1423                conversation.setUserSelectedThread(true);
1424                newThreadTutorialToast("Switched to new thread");
1425            }
1426        });
1427
1428        binding.threadIdenticonLayout.setOnLongClickListener(v -> {
1429            boolean wasLocked = conversation.getLockThread();
1430            conversation.setLockThread(false);
1431            backPressedLeaveSingleThread.setEnabled(false);
1432            setThread(null);
1433            conversation.setUserSelectedThread(true);
1434            if (wasLocked) refresh();
1435            newThreadTutorialToast("Cleared thread");
1436            return true;
1437        });
1438
1439        final Pattern lastColonPattern = Pattern.compile("(?<!\\w):");
1440        emojiSearchBinding = DataBindingUtil.inflate(inflater, R.layout.emoji_search, null, false);
1441        emojiSearchBinding.emoji.setOnItemClickListener((parent, view, position, id) -> {
1442            EmojiSearch.EmojiSearchAdapter adapter = ((EmojiSearch.EmojiSearchAdapter) emojiSearchBinding.emoji.getAdapter());
1443            Editable toInsert = adapter.getItem(position).toInsert();
1444            toInsert.append(" ");
1445            Editable s = binding.textinput.getText();
1446
1447            Matcher lastColonMatcher = lastColonPattern.matcher(s);
1448            int lastColon = -1;
1449            while(lastColonMatcher.find()) lastColon = lastColonMatcher.end();
1450            if (lastColon > 0) s.replace(lastColon - 1, s.length(), toInsert, 0, toInsert.length());
1451        });
1452        setupEmojiSearch();
1453        int popupHeight = (int) displayMetrics.density * 200;
1454        emojiPopup = new PopupWindow(emojiSearchBinding.getRoot(), WindowManager.LayoutParams.MATCH_PARENT, Math.min(popupHeight, displayMetrics.heightPixels > 0 ? displayMetrics.heightPixels / 5 : popupHeight));
1455        Handler emojiDebounce = new Handler(Looper.getMainLooper());
1456        final Pattern notEmojiSearch = Pattern.compile("[^\\w\\(\\)\\+'\\-]");
1457        binding.textinput.addTextChangedListener(new TextWatcher() {
1458            @Override
1459            public void afterTextChanged(Editable s) {
1460                emojiDebounce.removeCallbacksAndMessages(null);
1461                emojiDebounce.postDelayed(() -> {
1462                    Matcher lastColonMatcher = lastColonPattern.matcher(s);
1463                    int lastColon = -1;
1464                    while(lastColonMatcher.find()) lastColon = lastColonMatcher.end();
1465                    if (lastColon < 0) {
1466                        emojiPopup.dismiss();
1467                        return;
1468                    }
1469                    final String q = s.toString().substring(lastColon);
1470                    if (notEmojiSearch.matcher(q).find()) {
1471                        emojiPopup.dismiss();
1472                    } else {
1473                        EmojiSearch.EmojiSearchAdapter adapter = ((EmojiSearch.EmojiSearchAdapter) emojiSearchBinding.emoji.getAdapter());
1474                        if (adapter != null) {
1475                            adapter.search(q);
1476                            emojiPopup.showAsDropDown(binding.textinput);
1477                        }
1478                    }
1479                }, 400L);
1480            }
1481
1482            @Override
1483            public void beforeTextChanged(CharSequence s, int start, int count, int after) { }
1484
1485            @Override
1486            public void onTextChanged(CharSequence s, int start, int count, int after) { }
1487        });
1488
1489        return binding.getRoot();
1490    }
1491
1492    protected void setupEmojiSearch() {
1493        if (activity != null && activity.xmppConnectionService != null) {
1494            if (!activity.xmppConnectionService.getBooleanPreference("message_autocomplete", R.bool.message_autocomplete)) {
1495                emojiSearch = null;
1496                if (emojiSearchBinding != null) emojiSearchBinding.emoji.setAdapter(null);
1497                return;
1498            }
1499            if (emojiSearch == null) {
1500                emojiSearch = activity.xmppConnectionService.emojiSearch();
1501            }
1502        }
1503        if (emojiSearch == null || emojiSearchBinding == null) return;
1504
1505        emojiSearchBinding.emoji.setAdapter(emojiSearch.makeAdapter(activity));
1506    }
1507
1508    protected void newThreadTutorialToast(String s) {
1509        if (activity == null) return;
1510        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
1511        final int tutorialCount = p.getInt("thread_tutorial", 0);
1512        if (tutorialCount < 5) {
1513            Toast.makeText(activity, s, Toast.LENGTH_SHORT).show();
1514            p.edit().putInt("thread_tutorial", tutorialCount + 1).apply();
1515        }
1516    }
1517
1518    @Override
1519    public void onDestroyView() {
1520        super.onDestroyView();
1521        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1522        messageListAdapter.setOnContactPictureClicked(null);
1523        messageListAdapter.setOnContactPictureLongClicked(null);
1524        messageListAdapter.setOnInlineImageLongClicked(null);
1525        messageListAdapter.setConversationFragment(null);
1526        binding.conversationViewPager.setAdapter(null);
1527        if (conversation != null) conversation.setupViewPager(null, null, false, null);
1528    }
1529
1530    public void quoteText(String text) {
1531        if (binding.textinput.isEnabled()) {
1532            binding.textinput.insertAsQuote(text);
1533            binding.textinput.requestFocus();
1534            InputMethodManager inputMethodManager =
1535                    (InputMethodManager)
1536                            getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1537            if (inputMethodManager != null) {
1538                inputMethodManager.showSoftInput(
1539                        binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1540            }
1541        }
1542    }
1543
1544    private void quoteMessage(Message message) {
1545        if (message.isPrivateMessage()) privateMessageWith(message.getCounterpart());
1546        setThread(message.getThread());
1547        conversation.setUserSelectedThread(true);
1548        if (!forkNullThread(message)) newThread();
1549        setupReply(message);
1550    }
1551
1552    private boolean forkNullThread(Message message) {
1553        if (message.getThread() != null || conversation.getMode() != Conversation.MODE_MULTI) return true;
1554        for (final Message m : conversation.findReplies(message.getServerMsgId())) {
1555            final Element thread = m.getThread();
1556            if (thread != null) {
1557                setThread(thread);
1558                return true;
1559            }
1560        }
1561
1562        return false;
1563    }
1564
1565    private void setupReply(Message message) {
1566        conversation.setReplyTo(message);
1567        if (message == null) {
1568            binding.contextPreview.setVisibility(View.GONE);
1569            binding.textsend.setBackgroundResource(R.drawable.textsend);
1570            return;
1571        }
1572
1573        SpannableStringBuilder body = message.getSpannableBody(null, null);
1574        if (message.isFileOrImage() || message.isOOb()) body.append(" 🖼️");
1575        messageListAdapter.handleTextQuotes(body, activity.isDarkTheme());
1576        binding.contextPreviewText.setText(body);
1577        binding.contextPreview.setVisibility(View.VISIBLE);
1578        binding.textsend.setBackgroundColor(StyledAttributes.getColor(activity, R.attr.color_background_primary));
1579    }
1580
1581    private void setThread(Element thread) {
1582        this.conversation.setThread(thread);
1583        binding.threadIdenticon.setAlpha(0f);
1584        binding.threadIdenticonLock.setVisibility(this.conversation.getLockThread() ? View.VISIBLE : View.GONE);
1585        if (thread != null) {
1586            final String threadId = thread.getContent();
1587            if (threadId != null) {
1588                binding.threadIdenticon.setAlpha(1f);
1589                binding.threadIdenticon.setColor(UIHelper.getColorForName(threadId));
1590                binding.threadIdenticon.setHash(UIHelper.identiconHash(threadId));
1591            }
1592        }
1593        updateSendButton();
1594    }
1595
1596    @Override
1597    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1598        // This should cancel any remaining click events that would otherwise trigger links
1599        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1600
1601        if (v == binding.textSendButton) {
1602            super.onCreateContextMenu(menu, v, menuInfo);
1603            try {
1604                java.lang.reflect.Method m = menu.getClass().getSuperclass().getDeclaredMethod("setOptionalIconsVisible", Boolean.TYPE);
1605                m.setAccessible(true);
1606                m.invoke(menu, true);
1607            } catch (Exception e) {
1608                e.printStackTrace();
1609            }
1610            Menu tmpMenu = new PopupMenu(activity, null).getMenu();
1611            activity.getMenuInflater().inflate(R.menu.fragment_conversation, tmpMenu);
1612            MenuItem attachMenu = tmpMenu.findItem(R.id.action_attach_file);
1613            for (int i = 0; i < attachMenu.getSubMenu().size(); i++) {
1614                MenuItem item = attachMenu.getSubMenu().getItem(i);
1615                MenuItem newItem = menu.add(item.getGroupId(), item.getItemId(), item.getOrder(), item.getTitle());
1616                newItem.setIcon(item.getIcon());
1617            }
1618            return;
1619        }
1620
1621        synchronized (this.messageList) {
1622            super.onCreateContextMenu(menu, v, menuInfo);
1623            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1624            this.selectedMessage = this.messageList.get(acmi.position);
1625            populateContextMenu(menu);
1626        }
1627    }
1628
1629    private void populateContextMenu(ContextMenu menu) {
1630        final Message m = this.selectedMessage;
1631        final Transferable t = m.getTransferable();
1632        Message relevantForCorrection = m;
1633        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1634            relevantForCorrection = relevantForCorrection.next();
1635        }
1636        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1637
1638            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE
1639                    || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1640                return;
1641            }
1642
1643            if (m.getStatus() == Message.STATUS_RECEIVED
1644                    && t != null
1645                    && (t.getStatus() == Transferable.STATUS_CANCELLED
1646                            || t.getStatus() == Transferable.STATUS_FAILED)) {
1647                return;
1648            }
1649
1650            final boolean deleted = m.isDeleted();
1651            final boolean encrypted =
1652                    m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1653                            || m.getEncryption() == Message.ENCRYPTION_PGP;
1654            final boolean receiving =
1655                    m.getStatus() == Message.STATUS_RECEIVED
1656                            && (t instanceof JingleFileTransferConnection
1657                                    || t instanceof HttpDownloadConnection);
1658            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1659            final MenuItem reportAndBlock = menu.findItem(R.id.action_report_and_block);
1660            MenuItem openWith = menu.findItem(R.id.open_with);
1661            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1662            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1663            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1664            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1665            MenuItem retractMessage = menu.findItem(R.id.retract_message);
1666            MenuItem moderateMessage = menu.findItem(R.id.moderate_message);
1667            MenuItem onlyThisThread = menu.findItem(R.id.only_this_thread);
1668            MenuItem shareWith = menu.findItem(R.id.share_with);
1669            MenuItem sendAgain = menu.findItem(R.id.send_again);
1670            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1671            MenuItem saveAsSticker = menu.findItem(R.id.save_as_sticker);
1672            MenuItem downloadFile = menu.findItem(R.id.download_file);
1673            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1674            MenuItem blockMedia = menu.findItem(R.id.block_media);
1675            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1676            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1677            onlyThisThread.setVisible(!conversation.getLockThread() && m.getThread() != null);
1678            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1679            final boolean showError =
1680                    m.getStatus() == Message.STATUS_SEND_FAILED
1681                            && m.getErrorMessage() != null
1682                            && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1683            final Conversational conversational = m.getConversation();
1684            if (m.getStatus() == Message.STATUS_RECEIVED && conversational instanceof Conversation c) {
1685                final XmppConnection connection = c.getAccount().getXmppConnection();
1686                if (c.isWithStranger()
1687                        && m.getServerMsgId() != null
1688                        && !c.isBlocked()
1689                        && connection != null
1690                        && connection.getFeatures().spamReporting()) {
1691                    reportAndBlock.setVisible(true);
1692                }
1693            }
1694            if (!encrypted && !m.getBody().equals("")) {
1695                copyMessage.setVisible(true);
1696            }
1697            quoteMessage.setVisible(!encrypted && !showError);
1698            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1699                retryDecryption.setVisible(true);
1700            }
1701            if (!showError
1702                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1703                    && !m.isGeoUri()
1704                    && relevantForCorrection.isLastCorrectableMessage()
1705                    && m.getConversation() instanceof Conversation) {
1706                correctMessage.setVisible(true);
1707                if (!relevantForCorrection.getBody().equals("") && !relevantForCorrection.getBody().equals(" ")) retractMessage.setVisible(true);
1708            }
1709            if (relevantForCorrection.getReactions() != null) {
1710                correctMessage.setVisible(false);
1711                retractMessage.setVisible(true);
1712            }
1713            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")) {
1714                moderateMessage.setVisible(true);
1715            }
1716            if ((m.isFileOrImage() && !deleted && !receiving)
1717                    || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())
1718                            && !unInitiatedButKnownSize
1719                            && t == null) {
1720                shareWith.setVisible(true);
1721            }
1722            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1723                sendAgain.setVisible(true);
1724            }
1725            if (m.hasFileOnRemoteHost()
1726                    || m.isGeoUri()
1727                    || m.treatAsDownloadable()
1728                    || unInitiatedButKnownSize
1729                    || t instanceof HttpDownloadConnection) {
1730                copyUrl.setVisible(true);
1731            }
1732            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1733                downloadFile.setVisible(true);
1734                downloadFile.setTitle(
1735                        activity.getString(
1736                                R.string.download_x_file,
1737                                UIHelper.getFileDescriptionString(activity, m)));
1738            }
1739            final boolean waitingOfferedSending =
1740                    m.getStatus() == Message.STATUS_WAITING
1741                            || m.getStatus() == Message.STATUS_UNSEND
1742                            || m.getStatus() == Message.STATUS_OFFERED;
1743            final boolean cancelable =
1744                    (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1745            if (cancelable) {
1746                cancelTransmission.setVisible(true);
1747            }
1748            if (m.isFileOrImage() && !deleted && !cancelable) {
1749                final String path = m.getRelativeFilePath();
1750                if (path == null
1751                        || !path.startsWith("/")
1752                        || FileBackend.inConversationsDirectory(requireActivity(), path)) {
1753                    saveAsSticker.setVisible(true);
1754                    blockMedia.setVisible(true);
1755                    deleteFile.setVisible(true);
1756                    deleteFile.setTitle(
1757                            activity.getString(
1758                                    R.string.delete_x_file,
1759                                    UIHelper.getFileDescriptionString(activity, m)));
1760                }
1761            }
1762
1763            if (m.getFileParams() != null && !m.getFileParams().getThumbnails().isEmpty()) {
1764                // We might be showing a thumbnail worth blocking
1765                blockMedia.setVisible(true);
1766            }
1767            if (showError) {
1768                showErrorMessage.setVisible(true);
1769            }
1770            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1771            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m))
1772                    || (mime != null && mime.startsWith("audio/"))) {
1773                openWith.setVisible(true);
1774            }
1775        }
1776    }
1777
1778    @Override
1779    public boolean onContextItemSelected(MenuItem item) {
1780        switch (item.getItemId()) {
1781            case R.id.share_with:
1782                ShareUtil.share(activity, selectedMessage);
1783                return true;
1784            case R.id.correct_message:
1785                correctMessage(selectedMessage);
1786                return true;
1787            case R.id.retract_message:
1788                new AlertDialog.Builder(activity)
1789                    .setTitle(R.string.retract_message)
1790                    .setMessage("Do you really want to retract this message?")
1791                    .setPositiveButton(R.string.yes, (dialog, whichButton) -> {
1792                        Message message = selectedMessage;
1793                        while (message.mergeable(message.next())) {
1794                            message = message.next();
1795                        }
1796                        Element reactions = message.getReactions();
1797                        if (reactions != null) {
1798                            final Message previousReaction = conversation.findMessageReactingTo(reactions.getAttribute("id"), null);
1799                            if (previousReaction != null) reactions = previousReaction.getReactions();
1800                            for (Element el : reactions.getChildren()) {
1801                                if (message.getRawBody().endsWith(el.getContent())) {
1802                                    reactions.removeChild(el);
1803                                }
1804                            }
1805                            message.setReactions(reactions);
1806                            if (previousReaction != null) {
1807                                previousReaction.setReactions(reactions);
1808                                activity.xmppConnectionService.updateMessage(previousReaction);
1809                            }
1810                        }
1811                        message.setBody(" ");
1812                        message.putEdited(message.getUuid(), message.getServerMsgId());
1813                        message.setServerMsgId(null);
1814                        message.setUuid(UUID.randomUUID().toString());
1815                        sendMessage(message);
1816                    })
1817                    .setNegativeButton(R.string.no, null).show();
1818                return true;
1819            case R.id.moderate_message:
1820                activity.quickEdit("Spam", (reason) -> {
1821                    Message message = selectedMessage;
1822                    do {
1823                        activity.xmppConnectionService.moderateMessage(conversation.getAccount(), message, reason);
1824                        message = message.mergeable(message.next()) ? message.next() : null;
1825                    } while (message != null);
1826                    return null;
1827                }, R.string.moderate_reason, false, false, true);
1828                return true;
1829            case R.id.copy_message:
1830                ShareUtil.copyToClipboard(activity, selectedMessage);
1831                return true;
1832            case R.id.quote_message:
1833                quoteMessage(selectedMessage);
1834                return true;
1835            case R.id.send_again:
1836                resendMessage(selectedMessage);
1837                return true;
1838            case R.id.copy_url:
1839                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1840                return true;
1841            case R.id.save_as_sticker:
1842                saveAsSticker(selectedMessage);
1843                return true;
1844            case R.id.download_file:
1845                startDownloadable(selectedMessage);
1846                return true;
1847            case R.id.cancel_transmission:
1848                cancelTransmission(selectedMessage);
1849                return true;
1850            case R.id.retry_decryption:
1851                retryDecryption(selectedMessage);
1852                return true;
1853            case R.id.block_media:
1854                new AlertDialog.Builder(activity)
1855                    .setTitle(R.string.block_media)
1856                    .setMessage("Do you really want to block this media in all messages?")
1857                    .setPositiveButton(R.string.yes, (dialog, whichButton) -> {
1858                        List<Element> thumbs = selectedMessage.getFileParams() != null ? selectedMessage.getFileParams().getThumbnails() : null;
1859                        if (thumbs != null && !thumbs.isEmpty()) {
1860                            for (Element thumb : thumbs) {
1861                                Uri uri = Uri.parse(thumb.getAttribute("uri"));
1862                                if (uri.getScheme().equals("cid")) {
1863                                    Cid cid = BobTransfer.cid(uri);
1864                                    if (cid == null) continue;
1865                                    DownloadableFile f = activity.xmppConnectionService.getFileForCid(cid);
1866                                    activity.xmppConnectionService.blockMedia(f);
1867                                    activity.xmppConnectionService.evictPreview(f);
1868                                    f.delete();
1869                                }
1870                            }
1871                        }
1872                        File f = activity.xmppConnectionService.getFileBackend().getFile(selectedMessage);
1873                        activity.xmppConnectionService.blockMedia(f);
1874                        activity.xmppConnectionService.getFileBackend().deleteFile(selectedMessage);
1875                        activity.xmppConnectionService.evictPreview(f);
1876                        activity.xmppConnectionService.updateMessage(selectedMessage, false);
1877                        activity.onConversationsListItemUpdated();
1878                        refresh();
1879                    })
1880                    .setNegativeButton(R.string.no, null).show();
1881                return true;
1882            case R.id.delete_file:
1883                deleteFile(selectedMessage);
1884                return true;
1885            case R.id.show_error_message:
1886                showErrorMessage(selectedMessage);
1887                return true;
1888            case R.id.open_with:
1889                openWith(selectedMessage);
1890                return true;
1891            case R.id.only_this_thread:
1892                conversation.setLockThread(true);
1893                backPressedLeaveSingleThread.setEnabled(true);
1894                setThread(selectedMessage.getThread());
1895                refresh();
1896                return true;
1897            case R.id.action_report_and_block:
1898                reportMessage(selectedMessage);
1899                return true;
1900            default:
1901                return onOptionsItemSelected(item);
1902        }
1903    }
1904
1905    @Override
1906    public boolean onOptionsItemSelected(final MenuItem item) {
1907        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1908            return false;
1909        } else if (conversation == null) {
1910            return super.onOptionsItemSelected(item);
1911        }
1912        switch (item.getItemId()) {
1913            case R.id.encryption_choice_axolotl:
1914            case R.id.encryption_choice_pgp:
1915            case R.id.encryption_choice_none:
1916                handleEncryptionSelection(item);
1917                break;
1918            case R.id.attach_choose_picture:
1919            case R.id.attach_take_picture:
1920            case R.id.attach_record_video:
1921            case R.id.attach_choose_file:
1922            case R.id.attach_record_voice:
1923            case R.id.attach_location:
1924                handleAttachmentSelection(item);
1925                break;
1926            case R.id.action_search:
1927                startSearch();
1928                break;
1929            case R.id.action_archive:
1930                activity.xmppConnectionService.archiveConversation(conversation);
1931                break;
1932            case R.id.action_contact_details:
1933                activity.switchToContactDetails(conversation.getContact());
1934                break;
1935            case R.id.action_muc_details:
1936                ConferenceDetailsActivity.open(activity, conversation);
1937                break;
1938            case R.id.action_invite:
1939                startActivityForResult(
1940                        ChooseContactActivity.create(activity, conversation),
1941                        REQUEST_INVITE_TO_CONVERSATION);
1942                break;
1943            case R.id.action_clear_history:
1944                clearHistoryDialog(conversation);
1945                break;
1946            case R.id.action_mute:
1947                muteConversationDialog(conversation);
1948                break;
1949            case R.id.action_unmute:
1950                unMuteConversation(conversation);
1951                break;
1952            case R.id.action_block:
1953            case R.id.action_unblock:
1954                final Activity activity = getActivity();
1955                if (activity instanceof XmppActivity) {
1956                    BlockContactDialog.show((XmppActivity) activity, conversation);
1957                }
1958                break;
1959            case R.id.action_audio_call:
1960                checkPermissionAndTriggerAudioCall();
1961                break;
1962            case R.id.action_video_call:
1963                checkPermissionAndTriggerVideoCall();
1964                break;
1965            case R.id.action_ongoing_call:
1966                returnToOngoingCall();
1967                break;
1968            case R.id.action_toggle_pinned:
1969                togglePinned();
1970                break;
1971            case R.id.action_add_shortcut:
1972                addShortcut();
1973                break;
1974            case R.id.action_refresh_feature_discovery:
1975                refreshFeatureDiscovery();
1976                break;
1977            default:
1978                break;
1979        }
1980        return super.onOptionsItemSelected(item);
1981    }
1982
1983    public boolean onBackPressed() {
1984        boolean wasLocked = conversation.getLockThread();
1985        conversation.setLockThread(false);
1986        backPressedLeaveSingleThread.setEnabled(false);
1987        if (wasLocked) {
1988            setThread(null);
1989            conversation.setUserSelectedThread(false);
1990            refresh();
1991            updateThreadFromLastMessage();
1992            return true;
1993        }
1994        return false;
1995    }
1996
1997    private void startSearch() {
1998        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1999        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
2000        startActivity(intent);
2001    }
2002
2003    private void returnToOngoingCall() {
2004        final Optional<OngoingRtpSession> ongoingRtpSession =
2005                activity.xmppConnectionService
2006                        .getJingleConnectionManager()
2007                        .getOngoingRtpConnection(conversation.getContact());
2008        if (ongoingRtpSession.isPresent()) {
2009            final OngoingRtpSession id = ongoingRtpSession.get();
2010            final Intent intent = new Intent(activity, RtpSessionActivity.class);
2011            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
2012            intent.putExtra(
2013                    RtpSessionActivity.EXTRA_ACCOUNT,
2014                    id.getAccount().getJid().asBareJid().toEscapedString());
2015            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
2016            if (id instanceof AbstractJingleConnection.Id) {
2017                intent.setAction(Intent.ACTION_VIEW);
2018                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
2019            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
2020                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
2021                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
2022                } else {
2023                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
2024                }
2025            }
2026            activity.startActivity(intent);
2027        }
2028    }
2029
2030    private void refreshFeatureDiscovery() {
2031        Set<Map.Entry<String, Presence>> presences = conversation.getContact().getPresences().getPresencesMap().entrySet();
2032        if (presences.isEmpty()) {
2033            presences = new HashSet<>();
2034            presences.add(new AbstractMap.SimpleEntry("", null));
2035        }
2036        for (Map.Entry<String, Presence> entry : presences) {
2037            Jid jid = conversation.getContact().getJid();
2038            if (!entry.getKey().equals("")) jid = jid.withResource(entry.getKey());
2039            activity.xmppConnectionService.fetchCaps(conversation.getAccount(), jid, entry.getValue(), () -> {
2040                if (activity == null) return;
2041                activity.runOnUiThread(() -> {
2042                    refresh();
2043                    refreshCommands(true);
2044                });
2045            });
2046        }
2047    }
2048
2049    private void addShortcut() {
2050        ShortcutInfoCompat info;
2051        if (conversation.getMode() == Conversation.MODE_MULTI) {
2052            info = activity.xmppConnectionService.getShortcutService().getShortcutInfoCompat(conversation.getMucOptions());
2053        } else {
2054            info = activity.xmppConnectionService.getShortcutService().getShortcutInfoCompat(conversation.getContact());
2055        }
2056        ShortcutManagerCompat.requestPinShortcut(activity, info, null);
2057    }
2058
2059    private void togglePinned() {
2060        final boolean pinned =
2061                conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
2062        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
2063        activity.xmppConnectionService.updateConversation(conversation);
2064        activity.invalidateOptionsMenu();
2065    }
2066
2067    private void checkPermissionAndTriggerAudioCall() {
2068        if (activity.mUseTor || conversation.getAccount().isOnion()) {
2069            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
2070            return;
2071        }
2072        final List<String> permissions;
2073        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
2074            permissions =
2075                    Arrays.asList(
2076                            Manifest.permission.RECORD_AUDIO,
2077                            Manifest.permission.BLUETOOTH_CONNECT);
2078        } else {
2079            permissions = Collections.singletonList(Manifest.permission.RECORD_AUDIO);
2080        }
2081        if (hasPermissions(REQUEST_START_AUDIO_CALL, permissions)) {
2082            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
2083        }
2084    }
2085
2086    private void checkPermissionAndTriggerVideoCall() {
2087        if (activity.mUseTor || conversation.getAccount().isOnion()) {
2088            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
2089            return;
2090        }
2091        final List<String> permissions;
2092        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
2093            permissions =
2094                    Arrays.asList(
2095                            Manifest.permission.RECORD_AUDIO,
2096                            Manifest.permission.CAMERA,
2097                            Manifest.permission.BLUETOOTH_CONNECT);
2098        } else {
2099            permissions =
2100                    Arrays.asList(Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA);
2101        }
2102        if (hasPermissions(REQUEST_START_VIDEO_CALL, permissions)) {
2103            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
2104        }
2105    }
2106
2107    private void triggerRtpSession(final String action) {
2108        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy() != null) {
2109            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG)
2110                    .show();
2111            return;
2112        }
2113        final Account account = conversation.getAccount();
2114        if (account.setOption(Account.OPTION_SOFT_DISABLED, false)) {
2115            activity.xmppConnectionService.updateAccount(account);
2116        }
2117        final Contact contact = conversation.getContact();
2118        if (RtpCapability.jmiSupport(contact)) {
2119            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
2120        } else {
2121            final RtpCapability.Capability capability;
2122            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
2123                capability = RtpCapability.Capability.VIDEO;
2124            } else {
2125                capability = RtpCapability.Capability.AUDIO;
2126            }
2127            PresenceSelector.selectFullJidForDirectRtpConnection(
2128                    activity,
2129                    contact,
2130                    capability,
2131                    fullJid -> {
2132                        triggerRtpSession(contact.getAccount(), fullJid, action);
2133                    });
2134        }
2135    }
2136
2137    private void triggerRtpSession(final Account account, final Jid with, final String action) {
2138        final Intent intent = new Intent(activity, RtpSessionActivity.class);
2139        intent.setAction(action);
2140        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
2141        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
2142        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2143        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
2144        startActivity(intent);
2145    }
2146
2147    private void handleAttachmentSelection(MenuItem item) {
2148        switch (item.getItemId()) {
2149            case R.id.attach_choose_picture:
2150                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
2151                break;
2152            case R.id.attach_take_picture:
2153                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
2154                break;
2155            case R.id.attach_record_video:
2156                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
2157                break;
2158            case R.id.attach_choose_file:
2159                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
2160                break;
2161            case R.id.attach_record_voice:
2162                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
2163                break;
2164            case R.id.attach_location:
2165                attachFile(ATTACHMENT_CHOICE_LOCATION);
2166                break;
2167        }
2168    }
2169
2170    private void handleEncryptionSelection(MenuItem item) {
2171        if (conversation == null) {
2172            return;
2173        }
2174        final boolean updated;
2175        switch (item.getItemId()) {
2176            case R.id.encryption_choice_none:
2177                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2178                item.setChecked(true);
2179                break;
2180            case R.id.encryption_choice_pgp:
2181                if (activity.hasPgp()) {
2182                    if (conversation.getAccount().getPgpSignature() != null) {
2183                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
2184                        item.setChecked(true);
2185                    } else {
2186                        updated = false;
2187                        activity.announcePgp(
2188                                conversation.getAccount(),
2189                                conversation,
2190                                null,
2191                                activity.onOpenPGPKeyPublished);
2192                    }
2193                } else {
2194                    activity.showInstallPgpDialog();
2195                    updated = false;
2196                }
2197                break;
2198            case R.id.encryption_choice_axolotl:
2199                Log.d(
2200                        Config.LOGTAG,
2201                        AxolotlService.getLogprefix(conversation.getAccount())
2202                                + "Enabled axolotl for Contact "
2203                                + conversation.getContact().getJid());
2204                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
2205                item.setChecked(true);
2206                break;
2207            default:
2208                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2209                break;
2210        }
2211        if (updated) {
2212            activity.xmppConnectionService.updateConversation(conversation);
2213        }
2214        updateChatMsgHint();
2215        getActivity().invalidateOptionsMenu();
2216        activity.refreshUi();
2217    }
2218
2219    public void attachFile(final int attachmentChoice) {
2220        attachFile(attachmentChoice, true);
2221    }
2222
2223    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
2224        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
2225            if (!hasPermissions(
2226                    attachmentChoice,
2227                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
2228                    Manifest.permission.RECORD_AUDIO)) {
2229                return;
2230            }
2231        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO
2232                || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
2233            if (!hasPermissions(
2234                    attachmentChoice,
2235                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
2236                    Manifest.permission.CAMERA)) {
2237                return;
2238            }
2239        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
2240            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2241                return;
2242            }
2243        }
2244        if (updateRecentlyUsed) {
2245            storeRecentlyUsedQuickAction(attachmentChoice);
2246        }
2247        final int encryption = conversation.getNextEncryption();
2248        final int mode = conversation.getMode();
2249        if (encryption == Message.ENCRYPTION_PGP) {
2250            if (activity.hasPgp()) {
2251                if (mode == Conversation.MODE_SINGLE
2252                        && conversation.getContact().getPgpKeyId() != 0) {
2253                    activity.xmppConnectionService
2254                            .getPgpEngine()
2255                            .hasKey(
2256                                    conversation.getContact(),
2257                                    new UiCallback<Contact>() {
2258
2259                                        @Override
2260                                        public void userInputRequired(
2261                                                PendingIntent pi, Contact contact) {
2262                                            startPendingIntent(pi, attachmentChoice);
2263                                        }
2264
2265                                        @Override
2266                                        public void success(Contact contact) {
2267                                            invokeAttachFileIntent(attachmentChoice);
2268                                        }
2269
2270                                        @Override
2271                                        public void error(int error, Contact contact) {
2272                                            activity.replaceToast(getString(error));
2273                                        }
2274                                    });
2275                } else if (mode == Conversation.MODE_MULTI
2276                        && conversation.getMucOptions().pgpKeysInUse()) {
2277                    if (!conversation.getMucOptions().everybodyHasKeys()) {
2278                        Toast warning =
2279                                Toast.makeText(
2280                                        getActivity(),
2281                                        R.string.missing_public_keys,
2282                                        Toast.LENGTH_LONG);
2283                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2284                        warning.show();
2285                    }
2286                    invokeAttachFileIntent(attachmentChoice);
2287                } else {
2288                    showNoPGPKeyDialog(
2289                            false,
2290                            (dialog, which) -> {
2291                                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2292                                activity.xmppConnectionService.updateConversation(conversation);
2293                                invokeAttachFileIntent(attachmentChoice);
2294                            });
2295                }
2296            } else {
2297                activity.showInstallPgpDialog();
2298            }
2299        } else {
2300            invokeAttachFileIntent(attachmentChoice);
2301        }
2302    }
2303
2304    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
2305        try {
2306            activity.getPreferences()
2307                    .edit()
2308                    .putString(
2309                            RECENTLY_USED_QUICK_ACTION,
2310                            SendButtonAction.of(attachmentChoice).toString())
2311                    .apply();
2312        } catch (IllegalArgumentException e) {
2313            // just do not save
2314        }
2315    }
2316
2317    @Override
2318    public void onRequestPermissionsResult(
2319            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
2320        final PermissionUtils.PermissionResult permissionResult =
2321                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
2322        if (grantResults.length > 0) {
2323            if (allGranted(permissionResult.grantResults)) {
2324                switch (requestCode) {
2325                    case REQUEST_START_DOWNLOAD:
2326                        if (this.mPendingDownloadableMessage != null) {
2327                            startDownloadable(this.mPendingDownloadableMessage);
2328                        }
2329                        break;
2330                    case REQUEST_ADD_EDITOR_CONTENT:
2331                        if (this.mPendingEditorContent != null) {
2332                            attachEditorContentToConversation(this.mPendingEditorContent);
2333                        }
2334                        break;
2335                    case REQUEST_COMMIT_ATTACHMENTS:
2336                        commitAttachments();
2337                        break;
2338                    case REQUEST_START_AUDIO_CALL:
2339                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
2340                        break;
2341                    case REQUEST_START_VIDEO_CALL:
2342                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
2343                        break;
2344                    default:
2345                        attachFile(requestCode);
2346                        break;
2347                }
2348            } else {
2349                @StringRes int res;
2350                String firstDenied =
2351                        getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
2352                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
2353                    res = R.string.no_microphone_permission;
2354                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
2355                    res = R.string.no_camera_permission;
2356                } else {
2357                    res = R.string.no_storage_permission;
2358                }
2359                Toast.makeText(
2360                                getActivity(),
2361                                getString(res, getString(R.string.app_name)),
2362                                Toast.LENGTH_SHORT)
2363                        .show();
2364            }
2365        }
2366        if (writeGranted(grantResults, permissions)) {
2367            if (activity != null && activity.xmppConnectionService != null) {
2368                activity.xmppConnectionService.getDrawableCache().evictAll();
2369                activity.xmppConnectionService.restartFileObserver();
2370            }
2371            refresh();
2372        }
2373        if (cameraGranted(grantResults, permissions) || audioGranted(grantResults, permissions)) {
2374            XmppConnectionService.toggleForegroundService(activity);
2375        }
2376    }
2377
2378    public void startDownloadable(Message message) {
2379        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2380            this.mPendingDownloadableMessage = message;
2381            return;
2382        }
2383        Transferable transferable = message.getTransferable();
2384        if (transferable != null) {
2385            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
2386                createNewConnection(message);
2387                return;
2388            }
2389            if (!transferable.start()) {
2390                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
2391                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
2392                        .show();
2393            }
2394        } else if (message.treatAsDownloadable()
2395                || message.hasFileOnRemoteHost()
2396                || MessageUtils.unInitiatedButKnownSize(message)) {
2397            createNewConnection(message);
2398        } else {
2399            Log.d(
2400                    Config.LOGTAG,
2401                    message.getConversation().getAccount() + ": unable to start downloadable");
2402        }
2403    }
2404
2405    private void createNewConnection(final Message message) {
2406        if (!activity.xmppConnectionService.hasInternetConnection()) {
2407            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
2408                    .show();
2409            return;
2410        }
2411        if (message.getOob() != null && "cid".equalsIgnoreCase(message.getOob().getScheme())) {
2412            try {
2413                BobTransfer transfer = new BobTransfer.ForMessage(message, activity.xmppConnectionService);
2414                message.setTransferable(transfer);
2415                transfer.start();
2416            } catch (URISyntaxException e) {
2417                Log.d(Config.LOGTAG, "BobTransfer failed to parse URI");
2418            }
2419        } else {
2420            activity.xmppConnectionService
2421                    .getHttpConnectionManager()
2422                    .createNewDownloadConnection(message, true);
2423        }
2424    }
2425
2426    @SuppressLint("InflateParams")
2427    protected void clearHistoryDialog(final Conversation conversation) {
2428        final AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2429        builder.setTitle(getString(R.string.clear_conversation_history));
2430        final View dialogView =
2431                requireActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
2432        final CheckBox endConversationCheckBox =
2433                dialogView.findViewById(R.id.end_conversation_checkbox);
2434        builder.setView(dialogView);
2435        builder.setNegativeButton(getString(R.string.cancel), null);
2436        builder.setPositiveButton(
2437                getString(R.string.confirm),
2438                (dialog, which) -> {
2439                    this.activity.xmppConnectionService.clearConversationHistory(conversation);
2440                    if (endConversationCheckBox.isChecked()) {
2441                        this.activity.xmppConnectionService.archiveConversation(conversation);
2442                        this.activity.onConversationArchived(conversation);
2443                    } else {
2444                        activity.onConversationsListItemUpdated();
2445                        refresh();
2446                    }
2447                });
2448        builder.create().show();
2449    }
2450
2451    protected void muteConversationDialog(final Conversation conversation) {
2452        final AlertDialog.Builder builder = new AlertDialog.Builder(activity);
2453        builder.setTitle(R.string.disable_notifications);
2454        final int[] durations = activity.getResources().getIntArray(R.array.mute_options_durations);
2455        final CharSequence[] labels = new CharSequence[durations.length];
2456        for (int i = 0; i < durations.length; ++i) {
2457            if (durations[i] == -1) {
2458                labels[i] = activity.getString(R.string.until_further_notice);
2459            } else {
2460                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
2461            }
2462        }
2463        builder.setItems(
2464                labels,
2465                (dialog, which) -> {
2466                    final long till;
2467                    if (durations[which] == -1) {
2468                        till = Long.MAX_VALUE;
2469                    } else {
2470                        till = System.currentTimeMillis() + (durations[which] * 1000L);
2471                    }
2472                    conversation.setMutedTill(till);
2473                    activity.xmppConnectionService.updateConversation(conversation);
2474                    activity.onConversationsListItemUpdated();
2475                    refresh();
2476                    activity.invalidateOptionsMenu();
2477                });
2478        builder.create().show();
2479    }
2480
2481    private boolean hasPermissions(int requestCode, List<String> permissions) {
2482        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
2483            final List<String> missingPermissions = new ArrayList<>();
2484            for (String permission : permissions) {
2485                if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU || Config.ONLY_INTERNAL_STORAGE) && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2486                    continue;
2487                }
2488                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
2489                    missingPermissions.add(permission);
2490                }
2491            }
2492            if (missingPermissions.size() == 0) {
2493                return true;
2494            } else {
2495                requestPermissions(
2496                        missingPermissions.toArray(new String[0]),
2497                        requestCode);
2498                return false;
2499            }
2500        } else {
2501            return true;
2502        }
2503    }
2504
2505    private boolean hasPermissions(int requestCode, String... permissions) {
2506        return hasPermissions(requestCode, ImmutableList.copyOf(permissions));
2507    }
2508
2509    public void unMuteConversation(final Conversation conversation) {
2510        conversation.setMutedTill(0);
2511        this.activity.xmppConnectionService.updateConversation(conversation);
2512        this.activity.onConversationsListItemUpdated();
2513        refresh();
2514        this.activity.invalidateOptionsMenu();
2515    }
2516
2517    protected void invokeAttachFileIntent(final int attachmentChoice) {
2518        Intent intent = new Intent();
2519        boolean chooser = false;
2520        switch (attachmentChoice) {
2521            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
2522                intent.setAction(Intent.ACTION_GET_CONTENT);
2523                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2524                intent.setType("image/*");
2525                chooser = true;
2526                break;
2527            case ATTACHMENT_CHOICE_RECORD_VIDEO:
2528                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
2529                break;
2530            case ATTACHMENT_CHOICE_TAKE_PHOTO:
2531                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
2532                pendingTakePhotoUri.push(uri);
2533                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
2534                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
2535                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
2536                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
2537                break;
2538            case ATTACHMENT_CHOICE_CHOOSE_FILE:
2539                chooser = true;
2540                intent.setType("*/*");
2541                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2542                intent.addCategory(Intent.CATEGORY_OPENABLE);
2543                intent.setAction(Intent.ACTION_GET_CONTENT);
2544                break;
2545            case ATTACHMENT_CHOICE_RECORD_VOICE:
2546                intent = new Intent(getActivity(), RecordingActivity.class);
2547                break;
2548            case ATTACHMENT_CHOICE_LOCATION:
2549                intent = GeoHelper.getFetchIntent(activity);
2550                break;
2551        }
2552        final Context context = getActivity();
2553        if (context == null) {
2554            return;
2555        }
2556        try {
2557            if (chooser) {
2558                startActivityForResult(
2559                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
2560                        attachmentChoice);
2561            } else {
2562                startActivityForResult(intent, attachmentChoice);
2563            }
2564        } catch (final ActivityNotFoundException e) {
2565            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
2566        }
2567    }
2568
2569    @Override
2570    public void onResume() {
2571        super.onResume();
2572        binding.messagesView.post(this::fireReadEvent);
2573    }
2574
2575    private void fireReadEvent() {
2576        if (activity != null && this.conversation != null) {
2577            String uuid = getLastVisibleMessageUuid();
2578            if (uuid != null) {
2579                activity.onConversationRead(this.conversation, uuid);
2580            }
2581        }
2582    }
2583
2584    private void newSubThread() {
2585        Element oldThread = conversation.getThread();
2586        Element thread = new Element("thread", "jabber:client");
2587        thread.setContent(UUID.randomUUID().toString());
2588        if (oldThread != null) thread.setAttribute("parent", oldThread.getContent());
2589        setThread(thread);
2590    }
2591
2592    private void newThread() {
2593        Element thread = new Element("thread", "jabber:client");
2594        thread.setContent(UUID.randomUUID().toString());
2595        setThread(thread);
2596    }
2597
2598    private void updateThreadFromLastMessage() {
2599        if (this.conversation != null && !this.conversation.getUserSelectedThread() && TextUtils.isEmpty(binding.textinput.getText())) {
2600            Message message = getLastVisibleMessage();
2601            if (message == null) {
2602                newThread();
2603            } else {
2604                if (conversation.getMode() == Conversation.MODE_MULTI) {
2605                    if (activity == null || activity.xmppConnectionService == null) return;
2606                    if (message.getStatus() < Message.STATUS_SEND) {
2607                        if (!activity.xmppConnectionService.getBooleanPreference("follow_thread_in_channel", R.bool.follow_thread_in_channel)) return;
2608                    }
2609                }
2610
2611                setThread(message.getThread());
2612            }
2613        }
2614    }
2615
2616    private String getLastVisibleMessageUuid() {
2617        Message message =  getLastVisibleMessage();
2618        return message == null ? null : message.getUuid();
2619    }
2620
2621    private Message getLastVisibleMessage() {
2622        if (binding == null) {
2623            return null;
2624        }
2625        synchronized (this.messageList) {
2626            int pos = binding.messagesView.getLastVisiblePosition();
2627            if (pos >= 0) {
2628                Message message = null;
2629                for (int i = pos; i >= 0; --i) {
2630                    try {
2631                        message = (Message) binding.messagesView.getItemAtPosition(i);
2632                    } catch (IndexOutOfBoundsException e) {
2633                        // should not happen if we synchronize properly. however if that fails we
2634                        // just gonna try item -1
2635                        continue;
2636                    }
2637                    if (message.getType() != Message.TYPE_STATUS) {
2638                        break;
2639                    }
2640                }
2641                if (message != null) {
2642                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
2643                        message = message.next();
2644                    }
2645                    return message;
2646                }
2647            }
2648        }
2649        return null;
2650    }
2651
2652    private void openWith(final Message message) {
2653        if (message.isGeoUri()) {
2654            GeoHelper.view(getActivity(), message);
2655        } else {
2656            final DownloadableFile file =
2657                    activity.xmppConnectionService.getFileBackend().getFile(message);
2658            ViewUtil.view(activity, file);
2659        }
2660    }
2661
2662    private void reportMessage(final Message message) {
2663        BlockContactDialog.show(activity, conversation.getContact(), message.getServerMsgId());
2664    }
2665
2666    private void showErrorMessage(final Message message) {
2667        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2668        builder.setTitle(R.string.error_message);
2669        final String errorMessage = message.getErrorMessage();
2670        final String[] errorMessageParts =
2671                errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
2672        final String displayError;
2673        if (errorMessageParts.length == 2) {
2674            displayError = errorMessageParts[1];
2675        } else {
2676            displayError = errorMessage;
2677        }
2678        builder.setMessage(displayError);
2679        builder.setNegativeButton(
2680                R.string.copy_to_clipboard,
2681                (dialog, which) -> {
2682                    activity.copyTextToClipboard(displayError, R.string.error_message);
2683                    Toast.makeText(
2684                                    activity,
2685                                    R.string.error_message_copied_to_clipboard,
2686                                    Toast.LENGTH_SHORT)
2687                            .show();
2688                });
2689        builder.setPositiveButton(R.string.confirm, null);
2690        builder.create().show();
2691    }
2692
2693    public boolean onInlineImageLongClicked(Cid cid) {
2694        DownloadableFile f = activity.xmppConnectionService.getFileForCid(cid);
2695        if (f == null) return false;
2696
2697        saveAsSticker(f, null);
2698        return true;
2699    }
2700
2701    private void saveAsSticker(final Message m) {
2702        String existingName = m.getFileParams() != null && m.getFileParams().getName() != null ? m.getFileParams().getName() : "";
2703        existingName = existingName.lastIndexOf(".") == -1 ? existingName : existingName.substring(0, existingName.lastIndexOf("."));
2704        saveAsSticker(activity.xmppConnectionService.getFileBackend().getFile(m), existingName);
2705    }
2706
2707    private void saveAsSticker(final File file, final String name) {
2708        savingAsSticker = file;
2709
2710        Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
2711        intent.addCategory(Intent.CATEGORY_OPENABLE);
2712        intent.setType(MimeUtils.guessMimeTypeFromUri(activity, activity.xmppConnectionService.getFileBackend().getUriForFile(activity, file)));
2713        intent.putExtra(Intent.EXTRA_TITLE, name);
2714
2715        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2716        final String dir = p.getString("sticker_directory", "Stickers");
2717        if (dir.startsWith("content://")) {
2718            intent.putExtra("android.provider.extra.INITIAL_URI", Uri.parse(dir));
2719        } else {
2720            new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/" + dir + "/User Pack").mkdirs();
2721            Uri uri;
2722            if (Build.VERSION.SDK_INT >= 29) {
2723                Intent tmp = ((StorageManager) activity.getSystemService(Context.STORAGE_SERVICE)).getPrimaryStorageVolume().createOpenDocumentTreeIntent();
2724                uri = tmp.getParcelableExtra("android.provider.extra.INITIAL_URI");
2725                uri = Uri.parse(uri.toString().replace("/root/", "/document/") + "%3APictures%2F" + dir);
2726            } else {
2727                uri = Uri.parse("content://com.android.externalstorage.documents/document/primary%3APictures%2F" + dir);
2728            }
2729            intent.putExtra("android.provider.extra.INITIAL_URI", uri);
2730            intent.putExtra("android.content.extra.SHOW_ADVANCED", true);
2731        }
2732
2733        Toast.makeText(activity, "Choose a sticker pack to add this sticker to", Toast.LENGTH_SHORT).show();
2734        startActivityForResult(Intent.createChooser(intent, "Choose sticker pack"), REQUEST_SAVE_STICKER);
2735    }
2736
2737    private void deleteFile(final Message message) {
2738        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2739        builder.setNegativeButton(R.string.cancel, null);
2740        builder.setTitle(R.string.delete_file_dialog);
2741        builder.setMessage(R.string.delete_file_dialog_msg);
2742        builder.setPositiveButton(
2743                R.string.confirm,
2744                (dialog, which) -> {
2745                    List<Element> thumbs = selectedMessage.getFileParams() != null ? selectedMessage.getFileParams().getThumbnails() : null;
2746                    if (thumbs != null && !thumbs.isEmpty()) {
2747                        for (Element thumb : thumbs) {
2748                            Uri uri = Uri.parse(thumb.getAttribute("uri"));
2749                            if (uri.getScheme().equals("cid")) {
2750                                Cid cid = BobTransfer.cid(uri);
2751                                if (cid == null) continue;
2752                                DownloadableFile f = activity.xmppConnectionService.getFileForCid(cid);
2753                                activity.xmppConnectionService.evictPreview(f);
2754                                f.delete();
2755                            }
2756                        }
2757                    }
2758                    if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
2759                        activity.xmppConnectionService.evictPreview(activity.xmppConnectionService.getFileBackend().getFile(message));
2760                        activity.xmppConnectionService.updateMessage(message, false);
2761                        activity.onConversationsListItemUpdated();
2762                        refresh();
2763                    }
2764                });
2765        builder.create().show();
2766    }
2767
2768    private void resendMessage(final Message message) {
2769        if (message.isFileOrImage()) {
2770            if (!(message.getConversation() instanceof Conversation)) {
2771                return;
2772            }
2773            final Conversation conversation = (Conversation) message.getConversation();
2774            final DownloadableFile file =
2775                    activity.xmppConnectionService.getFileBackend().getFile(message);
2776            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
2777                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
2778                if (!message.hasFileOnRemoteHost()
2779                        && xmppConnection != null
2780                        && conversation.getMode() == Conversational.MODE_SINGLE
2781                        && !xmppConnection
2782                                .getFeatures()
2783                                .httpUpload(message.getFileParams().getSize())) {
2784                    activity.selectPresence(
2785                            conversation,
2786                            () -> {
2787                                message.setCounterpart(conversation.getNextCounterpart());
2788                                activity.xmppConnectionService.resendFailedMessages(message);
2789                                new Handler()
2790                                        .post(
2791                                                () -> {
2792                                                    int size = messageList.size();
2793                                                    this.binding.messagesView.setSelection(
2794                                                            size - 1);
2795                                                });
2796                            });
2797                    return;
2798                }
2799            } else if (!Compatibility.hasStoragePermission(getActivity())) {
2800                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
2801                return;
2802            } else {
2803                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
2804                message.setDeleted(true);
2805                activity.xmppConnectionService.updateMessage(message, false);
2806                activity.onConversationsListItemUpdated();
2807                refresh();
2808                return;
2809            }
2810        }
2811        activity.xmppConnectionService.resendFailedMessages(message);
2812        new Handler()
2813                .post(
2814                        () -> {
2815                            int size = messageList.size();
2816                            this.binding.messagesView.setSelection(size - 1);
2817                        });
2818    }
2819
2820    private void cancelTransmission(Message message) {
2821        Transferable transferable = message.getTransferable();
2822        if (transferable != null) {
2823            transferable.cancel();
2824        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
2825            activity.xmppConnectionService.markMessage(
2826                    message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
2827        }
2828    }
2829
2830    private void retryDecryption(Message message) {
2831        message.setEncryption(Message.ENCRYPTION_PGP);
2832        activity.onConversationsListItemUpdated();
2833        refresh();
2834        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
2835    }
2836
2837    public void privateMessageWith(final Jid counterpart) {
2838        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2839            activity.xmppConnectionService.sendChatState(conversation);
2840        }
2841        this.binding.textinput.setText("");
2842        this.conversation.setNextCounterpart(counterpart);
2843        updateChatMsgHint();
2844        updateSendButton();
2845        updateEditablity();
2846    }
2847
2848    private void correctMessage(Message message) {
2849        while (message.mergeable(message.next())) {
2850            message = message.next();
2851        }
2852        setThread(message.getThread());
2853        conversation.setUserSelectedThread(true);
2854        this.conversation.setCorrectingMessage(message);
2855        final Editable editable = binding.textinput.getText();
2856        this.conversation.setDraftMessage(editable.toString());
2857        this.binding.textinput.setText("");
2858        this.binding.textinput.append(message.getBody());
2859    }
2860
2861    private void highlightInConference(String nick) {
2862        final Editable editable = this.binding.textinput.getText();
2863        String oldString = editable.toString().trim();
2864        final int pos = this.binding.textinput.getSelectionStart();
2865        if (oldString.isEmpty() || pos == 0) {
2866            editable.insert(0, nick + ": ");
2867        } else {
2868            final char before = editable.charAt(pos - 1);
2869            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
2870            if (before == '\n') {
2871                editable.insert(pos, nick + ": ");
2872            } else {
2873                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
2874                    if (NickValidityChecker.check(
2875                            conversation,
2876                            Arrays.asList(
2877                                    editable.subSequence(0, pos - 2).toString().split(", ")))) {
2878                        editable.insert(pos - 2, ", " + nick);
2879                        return;
2880                    }
2881                }
2882                editable.insert(
2883                        pos,
2884                        (Character.isWhitespace(before) ? "" : " ")
2885                                + nick
2886                                + (Character.isWhitespace(after) ? "" : " "));
2887                if (Character.isWhitespace(after)) {
2888                    this.binding.textinput.setSelection(
2889                            this.binding.textinput.getSelectionStart() + 1);
2890                }
2891            }
2892        }
2893    }
2894
2895    @Override
2896    public void startActivityForResult(Intent intent, int requestCode) {
2897        final Activity activity = getActivity();
2898        if (activity instanceof ConversationsActivity) {
2899            ((ConversationsActivity) activity).clearPendingViewIntent();
2900        }
2901        super.startActivityForResult(intent, requestCode);
2902    }
2903
2904    @Override
2905    public void onSaveInstanceState(@NotNull Bundle outState) {
2906        super.onSaveInstanceState(outState);
2907        if (conversation != null) {
2908            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
2909            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
2910            final Uri uri = pendingTakePhotoUri.peek();
2911            if (uri != null) {
2912                outState.putString(STATE_PHOTO_URI, uri.toString());
2913            }
2914            final ScrollState scrollState = getScrollPosition();
2915            if (scrollState != null) {
2916                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
2917            }
2918            final ArrayList<Attachment> attachments =
2919                    mediaPreviewAdapter == null
2920                            ? new ArrayList<>()
2921                            : mediaPreviewAdapter.getAttachments();
2922            if (attachments.size() > 0) {
2923                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
2924            }
2925        }
2926    }
2927
2928    @Override
2929    public void onActivityCreated(Bundle savedInstanceState) {
2930        super.onActivityCreated(savedInstanceState);
2931        if (savedInstanceState == null) {
2932            return;
2933        }
2934        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
2935        ArrayList<Attachment> attachments =
2936                savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
2937        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
2938        if (uuid != null) {
2939            QuickLoader.set(uuid);
2940            this.pendingConversationsUuid.push(uuid);
2941            if (attachments != null && attachments.size() > 0) {
2942                this.pendingMediaPreviews.push(attachments);
2943            }
2944            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
2945            if (takePhotoUri != null) {
2946                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2947            }
2948            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2949        }
2950    }
2951
2952    @Override
2953    public void onStart() {
2954        super.onStart();
2955        if (this.reInitRequiredOnStart && this.conversation != null) {
2956            final Bundle extras = pendingExtras.pop();
2957            reInit(this.conversation, extras != null);
2958            if (extras != null) {
2959                processExtras(extras);
2960            }
2961        } else if (conversation == null
2962                && activity != null
2963                && activity.xmppConnectionService != null) {
2964            final String uuid = pendingConversationsUuid.pop();
2965            Log.d(
2966                    Config.LOGTAG,
2967                    "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid="
2968                            + uuid);
2969            if (uuid != null) {
2970                findAndReInitByUuidOrArchive(uuid);
2971            }
2972        }
2973    }
2974
2975    @Override
2976    public void onStop() {
2977        super.onStop();
2978        final Activity activity = getActivity();
2979        messageListAdapter.unregisterListenerInAudioPlayer();
2980        if (activity == null || !activity.isChangingConfigurations()) {
2981            hideSoftKeyboard(activity);
2982            messageListAdapter.stopAudioPlayer();
2983        }
2984        if (this.conversation != null) {
2985            final String msg = this.binding.textinput.getText().toString();
2986            storeNextMessage(msg);
2987            updateChatState(this.conversation, msg);
2988            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2989        }
2990        this.reInitRequiredOnStart = true;
2991        if (emojiPopup != null) emojiPopup.dismiss();
2992    }
2993
2994    private void updateChatState(final Conversation conversation, final String msg) {
2995        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2996        Account.State status = conversation.getAccount().getStatus();
2997        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2998            activity.xmppConnectionService.sendChatState(conversation);
2999        }
3000    }
3001
3002    private void saveMessageDraftStopAudioPlayer() {
3003        final Conversation previousConversation = this.conversation;
3004        if (this.activity == null || this.binding == null || previousConversation == null) {
3005            return;
3006        }
3007        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
3008        final String msg = this.binding.textinput.getText().toString();
3009        storeNextMessage(msg);
3010        updateChatState(this.conversation, msg);
3011        messageListAdapter.stopAudioPlayer();
3012        mediaPreviewAdapter.clearPreviews();
3013        toggleInputMethod();
3014    }
3015
3016    public void reInit(final Conversation conversation, final Bundle extras) {
3017        QuickLoader.set(conversation.getUuid());
3018        final boolean changedConversation = this.conversation != conversation;
3019        if (changedConversation) {
3020            this.saveMessageDraftStopAudioPlayer();
3021        }
3022        this.clearPending();
3023        if (this.reInit(conversation, extras != null)) {
3024            if (extras != null) {
3025                processExtras(extras);
3026            }
3027            this.reInitRequiredOnStart = false;
3028        } else {
3029            this.reInitRequiredOnStart = true;
3030            pendingExtras.push(extras);
3031        }
3032        resetUnreadMessagesCount();
3033    }
3034
3035    private void reInit(Conversation conversation) {
3036        reInit(conversation, false);
3037    }
3038
3039    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
3040        if (conversation == null) {
3041            return false;
3042        }
3043        final Conversation originalConversation = this.conversation;
3044        this.conversation = conversation;
3045        // once we set the conversation all is good and it will automatically do the right thing in
3046        // onStart()
3047        if (this.activity == null || this.binding == null) {
3048            return false;
3049        }
3050
3051        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
3052            activity.onConversationArchived(this.conversation);
3053            return false;
3054        }
3055
3056        setThread(conversation.getThread());
3057        setupReply(conversation.getReplyTo());
3058
3059        stopScrolling();
3060        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
3061
3062        if (this.conversation.isRead() && hasExtras) {
3063            Log.d(Config.LOGTAG, "trimming conversation");
3064            this.conversation.trim();
3065        }
3066
3067        setupIme();
3068
3069        final boolean scrolledToBottomAndNoPending =
3070                this.scrolledToBottom() && pendingScrollState.peek() == null;
3071
3072        this.binding.textSendButton.setContentDescription(
3073                activity.getString(R.string.send_message_to_x, conversation.getName()));
3074        this.binding.textinput.setKeyboardListener(null);
3075        final boolean participating =
3076                conversation.getMode() == Conversational.MODE_SINGLE
3077                        || conversation.getMucOptions().participating();
3078        if (participating) {
3079            this.binding.textinput.setText(this.conversation.getNextMessage());
3080            this.binding.textinput.setSelection(this.binding.textinput.length());
3081        } else {
3082            this.binding.textinput.setText(MessageUtils.EMPTY_STRING);
3083        }
3084        this.binding.textinput.setKeyboardListener(this);
3085        messageListAdapter.updatePreferences();
3086        refresh(false);
3087        activity.invalidateOptionsMenu();
3088        this.conversation.messagesLoaded.set(true);
3089        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
3090
3091        if (hasExtras || scrolledToBottomAndNoPending) {
3092            resetUnreadMessagesCount();
3093            synchronized (this.messageList) {
3094                Log.d(Config.LOGTAG, "jump to first unread message");
3095                final Message first = conversation.getFirstUnreadMessage();
3096                final int bottom = Math.max(0, this.messageList.size() - 1);
3097                final int pos;
3098                final boolean jumpToBottom;
3099                if (first == null) {
3100                    pos = bottom;
3101                    jumpToBottom = true;
3102                } else {
3103                    int i = getIndexOf(first.getUuid(), this.messageList);
3104                    pos = i < 0 ? bottom : i;
3105                    jumpToBottom = false;
3106                }
3107                setSelection(pos, jumpToBottom);
3108            }
3109        }
3110
3111        this.binding.messagesView.post(this::fireReadEvent);
3112        // TODO if we only do this when this fragment is running on main it won't *bing* in tablet
3113        // layout which might be unnecessary since we can *see* it
3114        activity.xmppConnectionService
3115                .getNotificationService()
3116                .setOpenConversation(this.conversation);
3117
3118        if (commandAdapter != null && conversation != originalConversation) {
3119            commandAdapter.clear();
3120            conversation.setupViewPager(binding.conversationViewPager, binding.tabLayout, activity.xmppConnectionService.isOnboarding(), originalConversation);
3121            refreshCommands(false);
3122        }
3123        if (commandAdapter == null && conversation != null) {
3124            conversation.setupViewPager(binding.conversationViewPager, binding.tabLayout, activity.xmppConnectionService.isOnboarding(), null);
3125            commandAdapter = new CommandAdapter((XmppActivity) getActivity());
3126            binding.commandsView.setAdapter(commandAdapter);
3127            binding.commandsView.setOnItemClickListener((parent, view, position, id) -> {
3128                if (activity == null) return;
3129
3130                final Element command = commandAdapter.getItem(position);
3131                activity.startCommand(ConversationFragment.this.conversation.getAccount(), command.getAttributeAsJid("jid"), command.getAttribute("node"));
3132            });
3133            refreshCommands(false);
3134        }
3135
3136        binding.commandsNote.setVisibility(activity.xmppConnectionService.isOnboarding() ? View.VISIBLE : View.GONE);
3137
3138        return true;
3139    }
3140
3141    public void refreshForNewCaps() {
3142        refreshCommands(true);
3143    }
3144
3145    protected void refreshCommands(boolean delayShow) {
3146        if (commandAdapter == null) return;
3147
3148        Jid commandJid = conversation.getContact().resourceWhichSupport(Namespace.COMMANDS);
3149        if (commandJid == null && conversation.getMode() == Conversation.MODE_MULTI && conversation.getMucOptions().hasFeature(Namespace.COMMANDS)) {
3150            commandJid = conversation.getJid().asBareJid();
3151        }
3152        if (commandJid == null && conversation.getJid().isDomainJid()) {
3153            commandJid = conversation.getJid();
3154        }
3155        if (commandJid == null) {
3156            conversation.hideViewPager();
3157        } else {
3158            if (!delayShow) conversation.showViewPager();
3159            binding.commandsViewProgressbar.setVisibility(View.VISIBLE);
3160            activity.xmppConnectionService.fetchCommands(conversation.getAccount(), commandJid, (a, iq) -> {
3161                if (activity == null) return;
3162
3163                activity.runOnUiThread(() -> {
3164                    if (iq.getType() == IqPacket.TYPE.RESULT) {
3165                        binding.commandsViewProgressbar.setVisibility(View.GONE);
3166                        commandAdapter.clear();
3167                        for (Element child : iq.query().getChildren()) {
3168                            if (!"item".equals(child.getName()) || !Namespace.DISCO_ITEMS.equals(child.getNamespace())) continue;
3169                            commandAdapter.add(child);
3170                        }
3171                    }
3172
3173                    if (commandAdapter.getCount() < 1) {
3174                        conversation.hideViewPager();
3175                    } else if (delayShow) {
3176                        conversation.showViewPager();
3177                    }
3178                });
3179            });
3180        }
3181    }
3182
3183    private void resetUnreadMessagesCount() {
3184        lastMessageUuid = null;
3185        hideUnreadMessagesCount();
3186    }
3187
3188    private void hideUnreadMessagesCount() {
3189        if (this.binding == null) {
3190            return;
3191        }
3192        this.binding.scrollToBottomButton.setEnabled(false);
3193        this.binding.scrollToBottomButton.hide();
3194        this.binding.unreadCountCustomView.setVisibility(View.GONE);
3195    }
3196
3197    private void setSelection(int pos, boolean jumpToBottom) {
3198        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
3199        this.binding.messagesView.post(
3200                () -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
3201        this.binding.messagesView.post(this::fireReadEvent);
3202    }
3203
3204    private boolean scrolledToBottom() {
3205        return this.binding != null && scrolledToBottom(this.binding.messagesView);
3206    }
3207
3208    private void processExtras(final Bundle extras) {
3209        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
3210        final String text = extras.getString(Intent.EXTRA_TEXT);
3211        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
3212        final String node = extras.getString(ConversationsActivity.EXTRA_NODE);
3213        final String postInitAction =
3214                extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
3215        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
3216        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
3217        final boolean doNotAppend =
3218                extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
3219        final String type = extras.getString(ConversationsActivity.EXTRA_TYPE);
3220        final List<Uri> uris = extractUris(extras);
3221        if (uris != null && uris.size() > 0) {
3222            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
3223                mediaPreviewAdapter.addMediaPreviews(
3224                        Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
3225            } else {
3226                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
3227                mediaPreviewAdapter.addMediaPreviews(
3228                        Attachment.of(getActivity(), cleanedUris, type));
3229            }
3230            toggleInputMethod();
3231            return;
3232        }
3233        if (nick != null) {
3234            if (pm) {
3235                Jid jid = conversation.getJid();
3236                try {
3237                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
3238                    privateMessageWith(next);
3239                } catch (final IllegalArgumentException ignored) {
3240                    // do nothing
3241                }
3242            } else {
3243                final MucOptions mucOptions = conversation.getMucOptions();
3244                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
3245                    highlightInConference(nick);
3246                }
3247            }
3248        } else {
3249            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
3250                mediaPreviewAdapter.addMediaPreviews(
3251                        Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
3252                toggleInputMethod();
3253                return;
3254            } else if (text != null && asQuote) {
3255                quoteText(text);
3256            } else {
3257                appendText(text, doNotAppend);
3258            }
3259        }
3260        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
3261            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
3262            return;
3263        }
3264        if ("call".equals(postInitAction)) {
3265            checkPermissionAndTriggerAudioCall();
3266        }
3267        if ("message".equals(postInitAction)) {
3268            binding.conversationViewPager.post(() -> {
3269                binding.conversationViewPager.setCurrentItem(0);
3270            });
3271        }
3272        if ("command".equals(postInitAction)) {
3273            binding.conversationViewPager.post(() -> {
3274                PagerAdapter adapter = binding.conversationViewPager.getAdapter();
3275                if (adapter != null && adapter.getCount() > 1) {
3276                    binding.conversationViewPager.setCurrentItem(1);
3277                }
3278                final String jid = extras.getString(ConversationsActivity.EXTRA_JID);
3279                Jid commandJid = null;
3280                if (jid != null) {
3281                    try {
3282                        commandJid = Jid.of(jid);
3283                    } catch (final IllegalArgumentException e) { }
3284                }
3285                if (commandJid == null || !commandJid.isFullJid()) {
3286                    final Jid discoJid = conversation.getContact().resourceWhichSupport(Namespace.COMMANDS);
3287                    if (discoJid != null) commandJid = discoJid;
3288                }
3289                if (node != null && commandJid != null) {
3290                    conversation.startCommand(commandFor(commandJid, node), activity.xmppConnectionService);
3291                }
3292            });
3293            return;
3294        }
3295        Message message =
3296                downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
3297        if ("webxdc".equals(postInitAction)) {
3298            if (message == null) {
3299                message = activity.xmppConnectionService.getMessage(conversation, downloadUuid);
3300            }
3301            if (message == null) return;
3302
3303            Cid webxdcCid = message.getFileParams().getCids().get(0);
3304            WebxdcPage webxdc = new WebxdcPage(activity, webxdcCid, message, activity.xmppConnectionService);
3305            Conversation conversation = (Conversation) message.getConversation();
3306            if (!conversation.switchToSession("webxdc\0" + message.getUuid())) {
3307                conversation.startWebxdc(webxdc);
3308            }
3309        }
3310        if (message != null) {
3311            startDownloadable(message);
3312        }
3313        if (activity.xmppConnectionService.isOnboarding() && conversation.getJid().equals(Jid.of("cheogram.com"))) {
3314            if (!conversation.switchToSession("jabber:iq:register")) {
3315                conversation.startCommand(commandFor(Jid.of("cheogram.com/CHEOGRAM%jabber:iq:register"), "jabber:iq:register"), activity.xmppConnectionService);
3316            }
3317        }
3318    }
3319
3320    private Element commandFor(final Jid jid, final String node) {
3321        if (commandAdapter != null) {
3322            for (int i = 0; i < commandAdapter.getCount(); i++) {
3323                Element command = commandAdapter.getItem(i);
3324                final String commandNode = command.getAttribute("node");
3325                if (commandNode == null || !commandNode.equals(node)) continue;
3326
3327                final Jid commandJid = command.getAttributeAsJid("jid");
3328                if (commandJid != null && !commandJid.asBareJid().equals(jid.asBareJid())) continue;
3329
3330                return command;
3331            }
3332        }
3333
3334        return new Element("command", Namespace.COMMANDS).setAttribute("name", node).setAttribute("node", node).setAttribute("jid", jid);
3335    }
3336
3337    private List<Uri> extractUris(final Bundle extras) {
3338        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
3339        if (uris != null) {
3340            return uris;
3341        }
3342        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
3343        if (uri != null) {
3344            return Collections.singletonList(uri);
3345        } else {
3346            return null;
3347        }
3348    }
3349
3350    private List<Uri> cleanUris(final List<Uri> uris) {
3351        final Iterator<Uri> iterator = uris.iterator();
3352        while (iterator.hasNext()) {
3353            final Uri uri = iterator.next();
3354            if (FileBackend.weOwnFile(uri)) {
3355                iterator.remove();
3356                Toast.makeText(
3357                                getActivity(),
3358                                R.string.security_violation_not_attaching_file,
3359                                Toast.LENGTH_SHORT)
3360                        .show();
3361            }
3362        }
3363        return uris;
3364    }
3365
3366    private boolean showBlockSubmenu(View view) {
3367        final Jid jid = conversation.getJid();
3368        final boolean showReject = conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
3369        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
3370        popupMenu.inflate(R.menu.block);
3371        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
3372        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
3373        popupMenu.setOnMenuItemClickListener(
3374                menuItem -> {
3375                    Blockable blockable;
3376                    switch (menuItem.getItemId()) {
3377                        case R.id.reject:
3378                            activity.xmppConnectionService.stopPresenceUpdatesTo(
3379                                    conversation.getContact());
3380                            updateSnackBar(conversation);
3381                            return true;
3382                        case R.id.block_domain:
3383                            blockable =
3384                                    conversation
3385                                            .getAccount()
3386                                            .getRoster()
3387                                            .getContact(jid.getDomain());
3388                            break;
3389                        default:
3390                            blockable = conversation;
3391                    }
3392                    BlockContactDialog.show(activity, blockable);
3393                    return true;
3394                });
3395        popupMenu.show();
3396        return true;
3397    }
3398
3399    private void updateSnackBar(final Conversation conversation) {
3400        final Account account = conversation.getAccount();
3401        final XmppConnection connection = account.getXmppConnection();
3402        final int mode = conversation.getMode();
3403        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
3404        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
3405            return;
3406        }
3407        if (account.getStatus() == Account.State.DISABLED) {
3408            showSnackbar(
3409                    R.string.this_account_is_disabled,
3410                    R.string.enable,
3411                    this.mEnableAccountListener);
3412        } else if (account.getStatus() == Account.State.LOGGED_OUT) {
3413            showSnackbar(R.string.this_account_is_logged_out,R.string.log_in,this.mEnableAccountListener);
3414        } else if (conversation.isBlocked()) {
3415            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
3416        } else if (contact != null
3417                && !contact.showInRoster()
3418                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
3419            showSnackbar(
3420                    R.string.contact_added_you,
3421                    R.string.add_back,
3422                    this.mAddBackClickListener,
3423                    this.mLongPressBlockListener);
3424        } else if (contact != null
3425                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
3426            showSnackbar(
3427                    R.string.contact_asks_for_presence_subscription,
3428                    R.string.allow,
3429                    this.mAllowPresenceSubscription,
3430                    this.mLongPressBlockListener);
3431        } else if (mode == Conversation.MODE_MULTI
3432                && !conversation.getMucOptions().online()
3433                && account.getStatus() == Account.State.ONLINE) {
3434            switch (conversation.getMucOptions().getError()) {
3435                case NICK_IN_USE:
3436                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
3437                    break;
3438                case NO_RESPONSE:
3439                    showSnackbar(R.string.joining_conference, 0, null);
3440                    break;
3441                case SERVER_NOT_FOUND:
3442                    if (conversation.receivedMessagesCount() > 0) {
3443                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
3444                    } else {
3445                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
3446                    }
3447                    break;
3448                case REMOTE_SERVER_TIMEOUT:
3449                    if (conversation.receivedMessagesCount() > 0) {
3450                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
3451                    } else {
3452                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
3453                    }
3454                    break;
3455                case PASSWORD_REQUIRED:
3456                    showSnackbar(
3457                            R.string.conference_requires_password,
3458                            R.string.enter_password,
3459                            enterPassword);
3460                    break;
3461                case BANNED:
3462                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
3463                    break;
3464                case MEMBERS_ONLY:
3465                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
3466                    break;
3467                case RESOURCE_CONSTRAINT:
3468                    showSnackbar(
3469                            R.string.conference_resource_constraint, R.string.try_again, joinMuc);
3470                    break;
3471                case KICKED:
3472                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
3473                    break;
3474                case TECHNICAL_PROBLEMS:
3475                    showSnackbar(R.string.conference_technical_problems, R.string.try_again, joinMuc);
3476                    break;
3477                case UNKNOWN:
3478                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
3479                    break;
3480                case INVALID_NICK:
3481                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
3482                case SHUTDOWN:
3483                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
3484                    break;
3485                case DESTROYED:
3486                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
3487                    break;
3488                case NON_ANONYMOUS:
3489                    showSnackbar(
3490                            R.string.group_chat_will_make_your_jabber_id_public,
3491                            R.string.join,
3492                            acceptJoin);
3493                    break;
3494                default:
3495                    hideSnackbar();
3496                    break;
3497            }
3498        } else if (account.hasPendingPgpIntent(conversation)) {
3499            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
3500        } else if (connection != null
3501                && connection.getFeatures().blocking()
3502                && conversation.countMessages() != 0
3503                && !conversation.isBlocked()
3504                && conversation.isWithStranger()) {
3505            showSnackbar(
3506                    R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
3507        } else {
3508            hideSnackbar();
3509        }
3510    }
3511
3512    @Override
3513    public void refresh() {
3514        if (this.binding == null) {
3515            Log.d(
3516                    Config.LOGTAG,
3517                    "ConversationFragment.refresh() skipped updated because view binding was null");
3518            return;
3519        }
3520        if (this.conversation != null
3521                && this.activity != null
3522                && this.activity.xmppConnectionService != null) {
3523            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
3524                activity.onConversationArchived(this.conversation);
3525                return;
3526            }
3527        }
3528        this.refresh(true);
3529    }
3530
3531    private void refresh(boolean notifyConversationRead) {
3532        synchronized (this.messageList) {
3533            if (this.conversation != null) {
3534                if (messageListAdapter.hasSelection()) {
3535                    if (notifyConversationRead) binding.messagesView.postDelayed(this::refresh, 1000L);
3536                } else {
3537                    conversation.populateWithMessages(this.messageList);
3538                    updateStatusMessages();
3539                    this.messageListAdapter.notifyDataSetChanged();
3540                }
3541                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
3542                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
3543                    binding.unreadCountCustomView.setUnreadCount(
3544                            conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
3545                }
3546                updateSnackBar(conversation);
3547                if (activity != null) updateChatMsgHint();
3548                if (notifyConversationRead && activity != null) {
3549                    binding.messagesView.post(this::fireReadEvent);
3550                }
3551                updateSendButton();
3552                updateEditablity();
3553                conversation.refreshSessions();
3554            }
3555        }
3556    }
3557
3558    protected void messageSent() {
3559        setThread(null);
3560        conversation.setUserSelectedThread(false);
3561        mSendingPgpMessage.set(false);
3562        this.binding.textinput.setText("");
3563        if (conversation.setCorrectingMessage(null)) {
3564            this.binding.textinput.append(conversation.getDraftMessage());
3565            conversation.setDraftMessage(null);
3566        }
3567        storeNextMessage();
3568        updateChatMsgHint();
3569        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
3570        final boolean prefScrollToBottom =
3571                p.getBoolean(
3572                        "scroll_to_bottom",
3573                        activity.getResources().getBoolean(R.bool.scroll_to_bottom));
3574        if (prefScrollToBottom || scrolledToBottom()) {
3575            new Handler()
3576                    .post(
3577                            () -> {
3578                                int size = messageList.size();
3579                                this.binding.messagesView.setSelection(size - 1);
3580                            });
3581        }
3582    }
3583
3584    private boolean storeNextMessage() {
3585        return storeNextMessage(this.binding.textinput.getText().toString());
3586    }
3587
3588    private boolean storeNextMessage(String msg) {
3589        final boolean participating =
3590                conversation.getMode() == Conversational.MODE_SINGLE
3591                        || conversation.getMucOptions().participating();
3592        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED
3593                && participating
3594                && this.conversation.setNextMessage(msg)) {
3595            this.activity.xmppConnectionService.updateConversation(this.conversation);
3596            return true;
3597        }
3598        return false;
3599    }
3600
3601    public void doneSendingPgpMessage() {
3602        mSendingPgpMessage.set(false);
3603    }
3604
3605    public long getMaxHttpUploadSize(Conversation conversation) {
3606        final XmppConnection connection = conversation.getAccount().getXmppConnection();
3607        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
3608    }
3609
3610    private boolean canWrite() {
3611        return
3612                this.conversation.getMode() == Conversation.MODE_SINGLE
3613                        || this.conversation.getMucOptions().participating()
3614                        || this.conversation.getNextCounterpart() != null;
3615    }
3616
3617    private void updateEditablity() {
3618        boolean canWrite = canWrite();
3619        this.binding.textinput.setFocusable(canWrite);
3620        this.binding.textinput.setFocusableInTouchMode(canWrite);
3621        this.binding.textSendButton.setEnabled(canWrite);
3622        this.binding.textSendButton.setVisibility(canWrite ? View.VISIBLE : View.GONE);
3623        this.binding.requestVoice.setVisibility(canWrite ? View.GONE : View.VISIBLE);
3624        this.binding.textinput.setCursorVisible(canWrite);
3625        this.binding.textinput.setEnabled(canWrite);
3626    }
3627
3628    public void updateSendButton() {
3629        boolean hasAttachments =
3630                mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
3631        final Conversation c = this.conversation;
3632        final Presence.Status status;
3633        final String text =
3634                this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
3635        final SendButtonAction action;
3636        if (hasAttachments) {
3637            action = SendButtonAction.TEXT;
3638        } else {
3639            action = SendButtonTool.getAction(getActivity(), c, text);
3640        }
3641        if (c.getAccount().getStatus() == Account.State.ONLINE) {
3642            if (activity != null
3643                    && activity.xmppConnectionService != null
3644                    && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
3645                status = Presence.Status.OFFLINE;
3646            } else if (c.getMode() == Conversation.MODE_SINGLE) {
3647                status = c.getContact().getShownStatus();
3648            } else {
3649                status =
3650                        c.getMucOptions().online()
3651                                ? Presence.Status.ONLINE
3652                                : Presence.Status.OFFLINE;
3653            }
3654        } else {
3655            status = Presence.Status.OFFLINE;
3656        }
3657        this.binding.textSendButton.setTag(action);
3658        final Activity activity = getActivity();
3659        if (activity != null) {
3660            this.binding.textSendButton.setImageDrawable(
3661                    SendButtonTool.getSendButtonImageResource(activity, action, status, text.length() > 0 || hasAttachments));
3662        }
3663
3664        ViewGroup.LayoutParams params = binding.threadIdenticonLayout.getLayoutParams();
3665        if (identiconWidth < 0) identiconWidth = params.width;
3666        if (hasAttachments || binding.textinput.getText().toString().replaceFirst("^(\\w|[, ])+:\\s*", "").length() > 0) {
3667            binding.conversationViewPager.setCurrentItem(0);
3668            params.width = conversation.getThread() == null ? 0 : identiconWidth;
3669        } else {
3670            params.width = identiconWidth;
3671        }
3672        if (!canWrite()) params.width = 0;
3673        binding.threadIdenticonLayout.setLayoutParams(params);
3674    }
3675
3676    protected void updateStatusMessages() {
3677        DateSeparator.addAll(this.messageList);
3678        if (showLoadMoreMessages(conversation)) {
3679            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
3680        }
3681        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3682            ChatState state = conversation.getIncomingChatState();
3683            if (state == ChatState.COMPOSING) {
3684                this.messageList.add(
3685                        Message.createStatusMessage(
3686                                conversation,
3687                                getString(R.string.contact_is_typing, conversation.getName())));
3688            } else if (state == ChatState.PAUSED) {
3689                this.messageList.add(
3690                        Message.createStatusMessage(
3691                                conversation,
3692                                getString(
3693                                        R.string.contact_has_stopped_typing,
3694                                        conversation.getName())));
3695            } else {
3696                for (int i = this.messageList.size() - 1; i >= 0; --i) {
3697                    final Message message = this.messageList.get(i);
3698                    if (message.getType() != Message.TYPE_STATUS) {
3699                        if (message.getStatus() == Message.STATUS_RECEIVED) {
3700                            return;
3701                        } else {
3702                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
3703                                this.messageList.add(
3704                                        i + 1,
3705                                        Message.createStatusMessage(
3706                                                conversation,
3707                                                getString(
3708                                                        R.string.contact_has_read_up_to_this_point,
3709                                                        conversation.getName())));
3710                                return;
3711                            }
3712                        }
3713                    }
3714                }
3715            }
3716        } else {
3717            final MucOptions mucOptions = conversation.getMucOptions();
3718            final List<MucOptions.User> allUsers = mucOptions.getUsers();
3719            final Set<ReadByMarker> addedMarkers = new HashSet<>();
3720            ChatState state = ChatState.COMPOSING;
3721            List<MucOptions.User> users =
3722                    conversation.getMucOptions().getUsersWithChatState(state, 5);
3723            if (users.size() == 0) {
3724                state = ChatState.PAUSED;
3725                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
3726            }
3727            if (mucOptions.isPrivateAndNonAnonymous()) {
3728                for (int i = this.messageList.size() - 1; i >= 0; --i) {
3729                    final Set<ReadByMarker> markersForMessage =
3730                            messageList.get(i).getReadByMarkers();
3731                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
3732                    for (ReadByMarker marker : markersForMessage) {
3733                        if (!ReadByMarker.contains(marker, addedMarkers)) {
3734                            addedMarkers.add(
3735                                    marker); // may be put outside this condition. set should do
3736                                             // dedup anyway
3737                            MucOptions.User user = mucOptions.findUser(marker);
3738                            if (user != null && !users.contains(user)) {
3739                                shownMarkers.add(user);
3740                            }
3741                        }
3742                    }
3743                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
3744                    final Message statusMessage;
3745                    final int size = shownMarkers.size();
3746                    if (size > 1) {
3747                        final String body;
3748                        if (size <= 4) {
3749                            body =
3750                                    getString(
3751                                            R.string.contacts_have_read_up_to_this_point,
3752                                            UIHelper.concatNames(shownMarkers));
3753                        } else if (ReadByMarker.allUsersRepresented(
3754                                allUsers, markersForMessage, markerForSender)) {
3755                            body = getString(R.string.everyone_has_read_up_to_this_point);
3756                        } else {
3757                            body =
3758                                    getString(
3759                                            R.string.contacts_and_n_more_have_read_up_to_this_point,
3760                                            UIHelper.concatNames(shownMarkers, 3),
3761                                            size - 3);
3762                        }
3763                        statusMessage = Message.createStatusMessage(conversation, body);
3764                        statusMessage.setCounterparts(shownMarkers);
3765                    } else if (size == 1) {
3766                        statusMessage =
3767                                Message.createStatusMessage(
3768                                        conversation,
3769                                        getString(
3770                                                R.string.contact_has_read_up_to_this_point,
3771                                                UIHelper.getDisplayName(shownMarkers.get(0))));
3772                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
3773                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
3774                    } else {
3775                        statusMessage = null;
3776                    }
3777                    if (statusMessage != null) {
3778                        this.messageList.add(i + 1, statusMessage);
3779                    }
3780                    addedMarkers.add(markerForSender);
3781                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
3782                        break;
3783                    }
3784                }
3785            }
3786            if (users.size() > 0) {
3787                Message statusMessage;
3788                if (users.size() == 1) {
3789                    MucOptions.User user = users.get(0);
3790                    int id =
3791                            state == ChatState.COMPOSING
3792                                    ? R.string.contact_is_typing
3793                                    : R.string.contact_has_stopped_typing;
3794                    statusMessage =
3795                            Message.createStatusMessage(
3796                                    conversation, getString(id, UIHelper.getDisplayName(user)));
3797                    statusMessage.setTrueCounterpart(user.getRealJid());
3798                    statusMessage.setCounterpart(user.getFullJid());
3799                } else {
3800                    int id =
3801                            state == ChatState.COMPOSING
3802                                    ? R.string.contacts_are_typing
3803                                    : R.string.contacts_have_stopped_typing;
3804                    statusMessage =
3805                            Message.createStatusMessage(
3806                                    conversation, getString(id, UIHelper.concatNames(users)));
3807                    statusMessage.setCounterparts(users);
3808                }
3809                this.messageList.add(statusMessage);
3810            }
3811        }
3812    }
3813
3814    private void stopScrolling() {
3815        long now = SystemClock.uptimeMillis();
3816        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
3817        binding.messagesView.dispatchTouchEvent(cancel);
3818    }
3819
3820    private boolean showLoadMoreMessages(final Conversation c) {
3821        if (activity == null || activity.xmppConnectionService == null) {
3822            return false;
3823        }
3824        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
3825        final MessageArchiveService service =
3826                activity.xmppConnectionService.getMessageArchiveService();
3827        return mam
3828                && (c.getLastClearHistory().getTimestamp() != 0
3829                        || (c.countMessages() == 0
3830                                && c.messagesLoaded.get()
3831                                && c.hasMessagesLeftOnServer()
3832                                && !service.queryInProgress(c)));
3833    }
3834
3835    private boolean hasMamSupport(final Conversation c) {
3836        if (c.getMode() == Conversation.MODE_SINGLE) {
3837            final XmppConnection connection = c.getAccount().getXmppConnection();
3838            return connection != null && connection.getFeatures().mam();
3839        } else {
3840            return c.getMucOptions().mamSupport();
3841        }
3842    }
3843
3844    protected void showSnackbar(
3845            final int message, final int action, final OnClickListener clickListener) {
3846        showSnackbar(message, action, clickListener, null);
3847    }
3848
3849    protected void showSnackbar(
3850            final int message,
3851            final int action,
3852            final OnClickListener clickListener,
3853            final View.OnLongClickListener longClickListener) {
3854        this.binding.snackbar.setVisibility(View.VISIBLE);
3855        this.binding.snackbar.setOnClickListener(null);
3856        this.binding.snackbarMessage.setText(message);
3857        this.binding.snackbarMessage.setOnClickListener(null);
3858        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
3859        if (action != 0) {
3860            this.binding.snackbarAction.setText(action);
3861        }
3862        this.binding.snackbarAction.setOnClickListener(clickListener);
3863        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
3864    }
3865
3866    protected void hideSnackbar() {
3867        this.binding.snackbar.setVisibility(View.GONE);
3868    }
3869
3870    protected void sendMessage(Message message) {
3871        new Thread(() -> activity.xmppConnectionService.sendMessage(message)).start();
3872        messageSent();
3873    }
3874
3875    protected void sendPgpMessage(final Message message) {
3876        final XmppConnectionService xmppService = activity.xmppConnectionService;
3877        final Contact contact = message.getConversation().getContact();
3878        if (!activity.hasPgp()) {
3879            activity.showInstallPgpDialog();
3880            return;
3881        }
3882        if (conversation.getAccount().getPgpSignature() == null) {
3883            activity.announcePgp(
3884                    conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
3885            return;
3886        }
3887        if (!mSendingPgpMessage.compareAndSet(false, true)) {
3888            Log.d(Config.LOGTAG, "sending pgp message already in progress");
3889        }
3890        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3891            if (contact.getPgpKeyId() != 0) {
3892                xmppService
3893                        .getPgpEngine()
3894                        .hasKey(
3895                                contact,
3896                                new UiCallback<Contact>() {
3897
3898                                    @Override
3899                                    public void userInputRequired(
3900                                            PendingIntent pi, Contact contact) {
3901                                        startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
3902                                    }
3903
3904                                    @Override
3905                                    public void success(Contact contact) {
3906                                        encryptTextMessage(message);
3907                                    }
3908
3909                                    @Override
3910                                    public void error(int error, Contact contact) {
3911                                        activity.runOnUiThread(
3912                                                () ->
3913                                                        Toast.makeText(
3914                                                                        activity,
3915                                                                        R.string
3916                                                                                .unable_to_connect_to_keychain,
3917                                                                        Toast.LENGTH_SHORT)
3918                                                                .show());
3919                                        mSendingPgpMessage.set(false);
3920                                    }
3921                                });
3922
3923            } else {
3924                showNoPGPKeyDialog(
3925                        false,
3926                        (dialog, which) -> {
3927                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3928                            xmppService.updateConversation(conversation);
3929                            message.setEncryption(Message.ENCRYPTION_NONE);
3930                            xmppService.sendMessage(message);
3931                            messageSent();
3932                        });
3933            }
3934        } else {
3935            if (conversation.getMucOptions().pgpKeysInUse()) {
3936                if (!conversation.getMucOptions().everybodyHasKeys()) {
3937                    Toast warning =
3938                            Toast.makeText(
3939                                    getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
3940                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
3941                    warning.show();
3942                }
3943                encryptTextMessage(message);
3944            } else {
3945                showNoPGPKeyDialog(
3946                        true,
3947                        (dialog, which) -> {
3948                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3949                            message.setEncryption(Message.ENCRYPTION_NONE);
3950                            xmppService.updateConversation(conversation);
3951                            xmppService.sendMessage(message);
3952                            messageSent();
3953                        });
3954            }
3955        }
3956    }
3957
3958    public void encryptTextMessage(Message message) {
3959        activity.xmppConnectionService
3960                .getPgpEngine()
3961                .encrypt(
3962                        message,
3963                        new UiCallback<Message>() {
3964
3965                            @Override
3966                            public void userInputRequired(PendingIntent pi, Message message) {
3967                                startPendingIntent(pi, REQUEST_SEND_MESSAGE);
3968                            }
3969
3970                            @Override
3971                            public void success(Message message) {
3972                                // TODO the following two call can be made before the callback
3973                                getActivity().runOnUiThread(() -> messageSent());
3974                            }
3975
3976                            @Override
3977                            public void error(final int error, Message message) {
3978                                getActivity()
3979                                        .runOnUiThread(
3980                                                () -> {
3981                                                    doneSendingPgpMessage();
3982                                                    Toast.makeText(
3983                                                                    getActivity(),
3984                                                                    error == 0
3985                                                                            ? R.string
3986                                                                                    .unable_to_connect_to_keychain
3987                                                                            : error,
3988                                                                    Toast.LENGTH_SHORT)
3989                                                            .show();
3990                                                });
3991                            }
3992                        });
3993    }
3994
3995    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
3996        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
3997        builder.setIconAttribute(android.R.attr.alertDialogIcon);
3998        if (plural) {
3999            builder.setTitle(getString(R.string.no_pgp_keys));
4000            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
4001        } else {
4002            builder.setTitle(getString(R.string.no_pgp_key));
4003            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
4004        }
4005        builder.setNegativeButton(getString(R.string.cancel), null);
4006        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
4007        builder.create().show();
4008    }
4009
4010    public void appendText(String text, final boolean doNotAppend) {
4011        if (text == null) {
4012            return;
4013        }
4014        final Editable editable = this.binding.textinput.getText();
4015        String previous = editable == null ? "" : editable.toString();
4016        if (doNotAppend && !TextUtils.isEmpty(previous)) {
4017            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG)
4018                    .show();
4019            return;
4020        }
4021        if (UIHelper.isLastLineQuote(previous)) {
4022            text = '\n' + text;
4023        } else if (previous.length() != 0
4024                && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
4025            text = " " + text;
4026        }
4027        this.binding.textinput.append(text);
4028    }
4029
4030    @Override
4031    public boolean onEnterPressed(final boolean isCtrlPressed) {
4032        if (isCtrlPressed || enterIsSend()) {
4033            sendMessage();
4034            return true;
4035        }
4036        return false;
4037    }
4038
4039    private boolean enterIsSend() {
4040        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
4041        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
4042    }
4043
4044    public boolean onArrowUpCtrlPressed() {
4045        final Message lastEditableMessage =
4046                conversation == null ? null : conversation.getLastEditableMessage();
4047        if (lastEditableMessage != null) {
4048            correctMessage(lastEditableMessage);
4049            return true;
4050        } else {
4051            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG)
4052                    .show();
4053            return false;
4054        }
4055    }
4056
4057    @Override
4058    public void onTypingStarted() {
4059        final XmppConnectionService service =
4060                activity == null ? null : activity.xmppConnectionService;
4061        if (service == null) {
4062            return;
4063        }
4064        final Account.State status = conversation.getAccount().getStatus();
4065        if (status == Account.State.ONLINE
4066                && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
4067            service.sendChatState(conversation);
4068        }
4069        runOnUiThread(this::updateSendButton);
4070    }
4071
4072    @Override
4073    public void onTypingStopped() {
4074        final XmppConnectionService service =
4075                activity == null ? null : activity.xmppConnectionService;
4076        if (service == null) {
4077            return;
4078        }
4079        final Account.State status = conversation.getAccount().getStatus();
4080        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
4081            service.sendChatState(conversation);
4082        }
4083    }
4084
4085    @Override
4086    public void onTextDeleted() {
4087        final XmppConnectionService service =
4088                activity == null ? null : activity.xmppConnectionService;
4089        if (service == null) {
4090            return;
4091        }
4092        final Account.State status = conversation.getAccount().getStatus();
4093        if (status == Account.State.ONLINE
4094                && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
4095            service.sendChatState(conversation);
4096        }
4097        if (storeNextMessage()) {
4098            runOnUiThread(
4099                    () -> {
4100                        if (activity == null) {
4101                            return;
4102                        }
4103                        activity.onConversationsListItemUpdated();
4104                    });
4105        }
4106        runOnUiThread(this::updateSendButton);
4107    }
4108
4109    @Override
4110    public void onTextChanged() {
4111        if (conversation != null && conversation.getCorrectingMessage() != null) {
4112            runOnUiThread(this::updateSendButton);
4113        }
4114    }
4115
4116    @Override
4117    public boolean onTabPressed(boolean repeated) {
4118        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
4119            return false;
4120        }
4121        if (repeated) {
4122            completionIndex++;
4123        } else {
4124            lastCompletionLength = 0;
4125            completionIndex = 0;
4126            final String content = this.binding.textinput.getText().toString();
4127            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
4128            int start =
4129                    lastCompletionCursor > 0
4130                            ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1
4131                            : 0;
4132            firstWord = start == 0;
4133            incomplete = content.substring(start, lastCompletionCursor);
4134        }
4135        List<String> completions = new ArrayList<>();
4136        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
4137            String name = user.getNick();
4138            if (name != null && name.startsWith(incomplete)) {
4139                completions.add(name + (firstWord ? ": " : " "));
4140            }
4141        }
4142        Collections.sort(completions);
4143        if (completions.size() > completionIndex) {
4144            String completion = completions.get(completionIndex).substring(incomplete.length());
4145            this.binding
4146                    .textinput
4147                    .getEditableText()
4148                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
4149            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
4150            lastCompletionLength = completion.length();
4151        } else {
4152            completionIndex = -1;
4153            this.binding
4154                    .textinput
4155                    .getEditableText()
4156                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
4157            lastCompletionLength = 0;
4158        }
4159        return true;
4160    }
4161
4162    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
4163        try {
4164            getActivity()
4165                    .startIntentSenderForResult(
4166                            pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0, Compatibility.pgpStartIntentSenderOptions());
4167        } catch (final SendIntentException ignored) {
4168        }
4169    }
4170
4171    @Override
4172    public void onBackendConnected() {
4173        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
4174        setupEmojiSearch();
4175        String uuid = pendingConversationsUuid.pop();
4176        if (uuid != null) {
4177            if (!findAndReInitByUuidOrArchive(uuid)) {
4178                return;
4179            }
4180        } else {
4181            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
4182                clearPending();
4183                activity.onConversationArchived(conversation);
4184                return;
4185            }
4186        }
4187        ActivityResult activityResult = postponedActivityResult.pop();
4188        if (activityResult != null) {
4189            handleActivityResult(activityResult);
4190        }
4191        clearPending();
4192    }
4193
4194    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
4195        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
4196        if (conversation == null) {
4197            clearPending();
4198            activity.onConversationArchived(null);
4199            return false;
4200        }
4201        reInit(conversation);
4202        ScrollState scrollState = pendingScrollState.pop();
4203        String lastMessageUuid = pendingLastMessageUuid.pop();
4204        List<Attachment> attachments = pendingMediaPreviews.pop();
4205        if (scrollState != null) {
4206            setScrollPosition(scrollState, lastMessageUuid);
4207        }
4208        if (attachments != null && attachments.size() > 0) {
4209            Log.d(Config.LOGTAG, "had attachments on restore");
4210            mediaPreviewAdapter.addMediaPreviews(attachments);
4211            toggleInputMethod();
4212        }
4213        return true;
4214    }
4215
4216    private void clearPending() {
4217        if (postponedActivityResult.clear()) {
4218            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
4219            if (pendingTakePhotoUri.clear()) {
4220                Log.e(Config.LOGTAG, "cleared pending photo uri");
4221            }
4222        }
4223        if (pendingScrollState.clear()) {
4224            Log.e(Config.LOGTAG, "cleared scroll state");
4225        }
4226        if (pendingConversationsUuid.clear()) {
4227            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
4228        }
4229        if (pendingMediaPreviews.clear()) {
4230            Log.e(Config.LOGTAG, "cleared pending media previews");
4231        }
4232    }
4233
4234    public Conversation getConversation() {
4235        return conversation;
4236    }
4237
4238    @Override
4239    public void onContactPictureLongClicked(View v, final Message message) {
4240        final String fingerprint;
4241        if (message.getEncryption() == Message.ENCRYPTION_PGP
4242                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
4243            fingerprint = "pgp";
4244        } else {
4245            fingerprint = message.getFingerprint();
4246        }
4247        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
4248        final Contact contact = message.getContact();
4249        if (message.getStatus() <= Message.STATUS_RECEIVED
4250                && (contact == null || !contact.isSelf())) {
4251            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
4252                final Jid cp = message.getCounterpart();
4253                if (cp == null || cp.isBareJid()) {
4254                    return;
4255                }
4256                final Jid tcp = message.getTrueCounterpart();
4257                final User userByRealJid =
4258                        tcp != null
4259                                ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp)
4260                                : null;
4261                final User user =
4262                        userByRealJid != null
4263                                ? userByRealJid
4264                                : conversation.getMucOptions().findUserByFullJid(cp);
4265                if (user == null) return;
4266                popupMenu.inflate(R.menu.muc_details_context);
4267                final Menu menu = popupMenu.getMenu();
4268                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(
4269                        activity, menu, conversation, user);
4270                popupMenu.setOnMenuItemClickListener(
4271                        menuItem ->
4272                                MucDetailsContextMenuHelper.onContextItemSelected(
4273                                        menuItem, user, activity, fingerprint));
4274            } else {
4275                popupMenu.inflate(R.menu.one_on_one_context);
4276                popupMenu.setOnMenuItemClickListener(
4277                        item -> {
4278                            switch (item.getItemId()) {
4279                                case R.id.action_contact_details:
4280                                    activity.switchToContactDetails(
4281                                            message.getContact(), fingerprint);
4282                                    break;
4283                                case R.id.action_show_qr_code:
4284                                    activity.showQrCode(
4285                                            "xmpp:"
4286                                                    + message.getContact()
4287                                                            .getJid()
4288                                                            .asBareJid()
4289                                                            .toEscapedString());
4290                                    break;
4291                            }
4292                            return true;
4293                        });
4294            }
4295        } else {
4296            popupMenu.inflate(R.menu.account_context);
4297            final Menu menu = popupMenu.getMenu();
4298            menu.findItem(R.id.action_manage_accounts)
4299                    .setVisible(QuickConversationsService.isConversations());
4300            popupMenu.setOnMenuItemClickListener(
4301                    item -> {
4302                        final XmppActivity activity = this.activity;
4303                        if (activity == null) {
4304                            Log.e(Config.LOGTAG, "Unable to perform action. no context provided");
4305                            return true;
4306                        }
4307                        switch (item.getItemId()) {
4308                            case R.id.action_show_qr_code:
4309                                activity.showQrCode(conversation.getAccount().getShareableUri());
4310                                break;
4311                            case R.id.action_account_details:
4312                                activity.switchToAccount(
4313                                        message.getConversation().getAccount(), fingerprint);
4314                                break;
4315                            case R.id.action_manage_accounts:
4316                                AccountUtils.launchManageAccounts(activity);
4317                                break;
4318                        }
4319                        return true;
4320                    });
4321        }
4322        popupMenu.show();
4323    }
4324
4325    @Override
4326    public void onContactPictureClicked(Message message) {
4327        setThread(message.getThread());
4328        if (message.isPrivateMessage()) {
4329            privateMessageWith(message.getCounterpart());
4330            return;
4331        }
4332        forkNullThread(message);
4333        conversation.setUserSelectedThread(true);
4334
4335        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
4336        if (received) {
4337            if (message.getConversation() instanceof Conversation
4338                    && message.getConversation().getMode() == Conversation.MODE_MULTI) {
4339                Jid tcp = message.getTrueCounterpart();
4340                Jid user = message.getCounterpart();
4341                if (user != null && !user.isBareJid()) {
4342                    final MucOptions mucOptions =
4343                            ((Conversation) message.getConversation()).getMucOptions();
4344                    if (mucOptions.participating()
4345                            || ((Conversation) message.getConversation()).getNextCounterpart()
4346                                    != null) {
4347                        MucOptions.User mucUser = mucOptions.findUserByFullJid(user);
4348                        MucOptions.User tcpMucUser = mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid());
4349                        if (mucUser == null && tcpMucUser == null) {
4350                            Toast.makeText(
4351                                            getActivity(),
4352                                            activity.getString(
4353                                                    R.string.user_has_left_conference,
4354                                                    user.getResource()),
4355                                            Toast.LENGTH_SHORT)
4356                                    .show();
4357                        }
4358                        highlightInConference(mucUser == null ? (tcpMucUser == null ? user.getResource() : tcpMucUser.getNick()) : mucUser.getNick());
4359                    } else {
4360                        Toast.makeText(
4361                                        getActivity(),
4362                                        R.string.you_are_not_participating,
4363                                        Toast.LENGTH_SHORT)
4364                                .show();
4365                    }
4366                }
4367            }
4368        }
4369    }
4370
4371    private Activity requireActivity() {
4372        final Activity activity = getActivity();
4373        if (activity == null) {
4374            throw new IllegalStateException("Activity not attached");
4375        }
4376        return activity;
4377    }
4378}