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