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