ConversationFragment.java

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