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