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