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