ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
   4import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
   5import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
   6import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
   7import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
   8import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
   9
  10import android.Manifest;
  11import android.annotation.SuppressLint;
  12import android.app.Activity;
  13import android.app.Fragment;
  14import android.app.FragmentManager;
  15import android.app.PendingIntent;
  16import android.content.ActivityNotFoundException;
  17import android.content.Context;
  18import android.content.DialogInterface;
  19import android.content.Intent;
  20import android.content.IntentSender.SendIntentException;
  21import android.content.SharedPreferences;
  22import android.content.pm.PackageManager;
  23import android.net.Uri;
  24import android.os.Build;
  25import android.os.Bundle;
  26import android.os.Environment;
  27import android.os.Handler;
  28import android.os.storage.StorageManager;
  29import android.os.SystemClock;
  30import android.preference.PreferenceManager;
  31import android.provider.MediaStore;
  32import android.text.Editable;
  33import android.text.SpannableStringBuilder;
  34import android.text.TextUtils;
  35import android.util.Log;
  36import android.view.ContextMenu;
  37import android.view.ContextMenu.ContextMenuInfo;
  38import android.view.Gravity;
  39import android.view.LayoutInflater;
  40import android.view.Menu;
  41import android.view.MenuInflater;
  42import android.view.MenuItem;
  43import android.view.MotionEvent;
  44import android.view.View;
  45import android.view.View.OnClickListener;
  46import android.view.ViewGroup;
  47import android.view.inputmethod.EditorInfo;
  48import android.view.inputmethod.InputMethodManager;
  49import android.widget.AbsListView;
  50import android.widget.AbsListView.OnScrollListener;
  51import android.widget.AdapterView;
  52import android.widget.AdapterView.AdapterContextMenuInfo;
  53import android.widget.CheckBox;
  54import android.widget.ListView;
  55import android.widget.PopupMenu;
  56import android.widget.TextView.OnEditorActionListener;
  57import android.widget.Toast;
  58
  59import androidx.activity.OnBackPressedCallback;
  60import androidx.annotation.IdRes;
  61import androidx.annotation.NonNull;
  62import androidx.annotation.Nullable;
  63import androidx.annotation.StringRes;
  64import androidx.appcompat.app.AlertDialog;
  65import androidx.core.view.inputmethod.InputConnectionCompat;
  66import androidx.core.view.inputmethod.InputContentInfoCompat;
  67import androidx.databinding.DataBindingUtil;
  68import androidx.documentfile.provider.DocumentFile;
  69import androidx.viewpager.widget.PagerAdapter;
  70import androidx.viewpager.widget.ViewPager;
  71
  72import com.cheogram.android.BobTransfer;
  73
  74import com.google.common.base.Optional;
  75import com.google.common.collect.ImmutableList;
  76
  77import org.jetbrains.annotations.NotNull;
  78
  79import io.ipfs.cid.Cid;
  80
  81import java.io.File;
  82import java.net.URISyntaxException;
  83import java.util.ArrayList;
  84import java.util.Arrays;
  85import java.util.Collection;
  86import java.util.Collections;
  87import java.util.HashSet;
  88import java.util.Iterator;
  89import java.util.List;
  90import java.util.Map;
  91import java.util.Set;
  92import java.util.UUID;
  93import java.util.concurrent.atomic.AtomicBoolean;
  94
  95import eu.siacs.conversations.Config;
  96import eu.siacs.conversations.R;
  97import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  98import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  99import eu.siacs.conversations.databinding.FragmentConversationBinding;
 100import eu.siacs.conversations.entities.Account;
 101import eu.siacs.conversations.entities.Blockable;
 102import eu.siacs.conversations.entities.Contact;
 103import eu.siacs.conversations.entities.Conversation;
 104import eu.siacs.conversations.entities.Conversational;
 105import eu.siacs.conversations.entities.DownloadableFile;
 106import eu.siacs.conversations.entities.Message;
 107import eu.siacs.conversations.entities.MucOptions;
 108import eu.siacs.conversations.entities.MucOptions.User;
 109import eu.siacs.conversations.entities.Presence;
 110import eu.siacs.conversations.entities.Presences;
 111import eu.siacs.conversations.entities.ReadByMarker;
 112import eu.siacs.conversations.entities.Transferable;
 113import eu.siacs.conversations.entities.TransferablePlaceholder;
 114import eu.siacs.conversations.http.HttpDownloadConnection;
 115import eu.siacs.conversations.persistance.FileBackend;
 116import eu.siacs.conversations.services.MessageArchiveService;
 117import eu.siacs.conversations.services.QuickConversationsService;
 118import eu.siacs.conversations.services.XmppConnectionService;
 119import eu.siacs.conversations.ui.adapter.CommandAdapter;
 120import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
 121import eu.siacs.conversations.ui.adapter.MessageAdapter;
 122import eu.siacs.conversations.ui.util.ActivityResult;
 123import eu.siacs.conversations.ui.util.Attachment;
 124import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
 125import eu.siacs.conversations.ui.util.DateSeparator;
 126import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
 127import eu.siacs.conversations.ui.util.ListViewUtils;
 128import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 129import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 130import eu.siacs.conversations.ui.util.PendingItem;
 131import eu.siacs.conversations.ui.util.PresenceSelector;
 132import eu.siacs.conversations.ui.util.ScrollState;
 133import eu.siacs.conversations.ui.util.SendButtonAction;
 134import eu.siacs.conversations.ui.util.SendButtonTool;
 135import eu.siacs.conversations.ui.util.ShareUtil;
 136import eu.siacs.conversations.ui.util.ViewUtil;
 137import eu.siacs.conversations.ui.widget.EditMessage;
 138import eu.siacs.conversations.utils.AccountUtils;
 139import eu.siacs.conversations.utils.Compatibility;
 140import eu.siacs.conversations.utils.GeoHelper;
 141import eu.siacs.conversations.utils.MessageUtils;
 142import eu.siacs.conversations.utils.MimeUtils;
 143import eu.siacs.conversations.utils.NickValidityChecker;
 144import eu.siacs.conversations.utils.Patterns;
 145import eu.siacs.conversations.utils.PermissionUtils;
 146import eu.siacs.conversations.utils.QuickLoader;
 147import eu.siacs.conversations.utils.StylingHelper;
 148import eu.siacs.conversations.utils.TimeFrameUtils;
 149import eu.siacs.conversations.utils.UIHelper;
 150import eu.siacs.conversations.xml.Element;
 151import eu.siacs.conversations.xml.Namespace;
 152import eu.siacs.conversations.xmpp.Jid;
 153import eu.siacs.conversations.xmpp.XmppConnection;
 154import eu.siacs.conversations.xmpp.chatstate.ChatState;
 155import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 156import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 157import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 158import eu.siacs.conversations.xmpp.jingle.Media;
 159import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 160import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 161import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 162
 163public class ConversationFragment extends XmppFragment
 164        implements EditMessage.KeyboardListener,
 165                MessageAdapter.OnContactPictureLongClicked,
 166                MessageAdapter.OnContactPictureClicked,
 167                MessageAdapter.OnInlineImageLongClicked {
 168
 169    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 170    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 171    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 172    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 173    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 174    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 175    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 176    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 177    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 178    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 179    public static final int REQUEST_SAVE_STICKER = 0x215;
 180    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 181    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 182    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 183    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 184    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 185    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 186    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 187
 188    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 189    public static final String STATE_CONVERSATION_UUID =
 190            ConversationFragment.class.getName() + ".uuid";
 191    public static final String STATE_SCROLL_POSITION =
 192            ConversationFragment.class.getName() + ".scroll_position";
 193    public static final String STATE_PHOTO_URI =
 194            ConversationFragment.class.getName() + ".media_previews";
 195    public static final String STATE_MEDIA_PREVIEWS =
 196            ConversationFragment.class.getName() + ".take_photo_uri";
 197    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 198
 199    private final List<Message> messageList = new ArrayList<>();
 200    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 201    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 202    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 203    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 204    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 205    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 206    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 207    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 208    public Uri mPendingEditorContent = null;
 209    protected MessageAdapter messageListAdapter;
 210    protected CommandAdapter commandAdapter;
 211    private MediaPreviewAdapter mediaPreviewAdapter;
 212    private String lastMessageUuid = null;
 213    private Conversation conversation;
 214    private FragmentConversationBinding binding;
 215    private Toast messageLoaderToast;
 216    private ConversationsActivity activity;
 217    private boolean reInitRequiredOnStart = true;
 218    private int identiconWidth = -1;
 219    private File savingAsSticker = null;
 220    private final OnClickListener clickToMuc =
 221            new OnClickListener() {
 222
 223                @Override
 224                public void onClick(View v) {
 225                    ConferenceDetailsActivity.open(getActivity(), conversation);
 226                }
 227            };
 228    private final OnClickListener leaveMuc =
 229            new OnClickListener() {
 230
 231                @Override
 232                public void onClick(View v) {
 233                    activity.xmppConnectionService.archiveConversation(conversation);
 234                }
 235            };
 236    private final OnClickListener joinMuc =
 237            new OnClickListener() {
 238
 239                @Override
 240                public void onClick(View v) {
 241                    activity.xmppConnectionService.joinMuc(conversation);
 242                }
 243            };
 244
 245    private final OnClickListener acceptJoin =
 246            new OnClickListener() {
 247                @Override
 248                public void onClick(View v) {
 249                    conversation.setAttribute("accept_non_anonymous", true);
 250                    activity.xmppConnectionService.updateConversation(conversation);
 251                    activity.xmppConnectionService.joinMuc(conversation);
 252                }
 253            };
 254
 255    private final OnClickListener enterPassword =
 256            new OnClickListener() {
 257
 258                @Override
 259                public void onClick(View v) {
 260                    MucOptions muc = conversation.getMucOptions();
 261                    String password = muc.getPassword();
 262                    if (password == null) {
 263                        password = "";
 264                    }
 265                    activity.quickPasswordEdit(
 266                            password,
 267                            value -> {
 268                                activity.xmppConnectionService.providePasswordForMuc(
 269                                        conversation, value);
 270                                return null;
 271                            });
 272                }
 273            };
 274    private final OnScrollListener mOnScrollListener =
 275            new OnScrollListener() {
 276
 277                @Override
 278                public void onScrollStateChanged(AbsListView view, int scrollState) {
 279                    if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 280                        updateThreadFromLastMessage();
 281                        fireReadEvent();
 282                    }
 283                }
 284
 285                @Override
 286                public void onScroll(
 287                        final AbsListView view,
 288                        int firstVisibleItem,
 289                        int visibleItemCount,
 290                        int totalItemCount) {
 291                    toggleScrollDownButton(view);
 292                    synchronized (ConversationFragment.this.messageList) {
 293                        if (firstVisibleItem < 5
 294                                && conversation != null
 295                                && conversation.messagesLoaded.compareAndSet(true, false)
 296                                && messageList.size() > 0) {
 297                            long timestamp;
 298                            if (messageList.get(0).getType() == Message.TYPE_STATUS
 299                                    && messageList.size() >= 2) {
 300                                timestamp = messageList.get(1).getTimeSent();
 301                            } else {
 302                                timestamp = messageList.get(0).getTimeSent();
 303                            }
 304                            activity.xmppConnectionService.loadMoreMessages(
 305                                    conversation,
 306                                    timestamp,
 307                                    new XmppConnectionService.OnMoreMessagesLoaded() {
 308                                        @Override
 309                                        public void onMoreMessagesLoaded(
 310                                                final int c, final Conversation conversation) {
 311                                            if (ConversationFragment.this.conversation
 312                                                    != conversation) {
 313                                                conversation.messagesLoaded.set(true);
 314                                                return;
 315                                            }
 316                                            runOnUiThread(
 317                                                    () -> {
 318                                                        synchronized (messageList) {
 319                                                            final int oldPosition =
 320                                                                    binding.messagesView
 321                                                                            .getFirstVisiblePosition();
 322                                                            Message message = null;
 323                                                            int childPos;
 324                                                            for (childPos = 0;
 325                                                                    childPos + oldPosition
 326                                                                            < messageList.size();
 327                                                                    ++childPos) {
 328                                                                message =
 329                                                                        messageList.get(
 330                                                                                oldPosition
 331                                                                                        + childPos);
 332                                                                if (message.getType()
 333                                                                        != Message.TYPE_STATUS) {
 334                                                                    break;
 335                                                                }
 336                                                            }
 337                                                            final String uuid =
 338                                                                    message != null
 339                                                                            ? message.getUuid()
 340                                                                            : null;
 341                                                            View v =
 342                                                                    binding.messagesView.getChildAt(
 343                                                                            childPos);
 344                                                            final int pxOffset =
 345                                                                    (v == null) ? 0 : v.getTop();
 346                                                            ConversationFragment.this.conversation
 347                                                                    .populateWithMessages(
 348                                                                            ConversationFragment
 349                                                                                    .this
 350                                                                                    .messageList);
 351                                                            try {
 352                                                                updateStatusMessages();
 353                                                            } catch (IllegalStateException e) {
 354                                                                Log.d(
 355                                                                        Config.LOGTAG,
 356                                                                        "caught illegal state exception while updating status messages");
 357                                                            }
 358                                                            messageListAdapter
 359                                                                    .notifyDataSetChanged();
 360                                                            int pos =
 361                                                                    Math.max(
 362                                                                            getIndexOf(
 363                                                                                    uuid,
 364                                                                                    messageList),
 365                                                                            0);
 366                                                            binding.messagesView
 367                                                                    .setSelectionFromTop(
 368                                                                            pos, pxOffset);
 369                                                            if (messageLoaderToast != null) {
 370                                                                messageLoaderToast.cancel();
 371                                                            }
 372                                                            conversation.messagesLoaded.set(true);
 373                                                        }
 374                                                    });
 375                                        }
 376
 377                                        @Override
 378                                        public void informUser(final int resId) {
 379
 380                                            runOnUiThread(
 381                                                    () -> {
 382                                                        if (messageLoaderToast != null) {
 383                                                            messageLoaderToast.cancel();
 384                                                        }
 385                                                        if (ConversationFragment.this.conversation
 386                                                                != conversation) {
 387                                                            return;
 388                                                        }
 389                                                        messageLoaderToast =
 390                                                                Toast.makeText(
 391                                                                        view.getContext(),
 392                                                                        resId,
 393                                                                        Toast.LENGTH_LONG);
 394                                                        messageLoaderToast.show();
 395                                                    });
 396                                        }
 397                                    });
 398                        }
 399                    }
 400                }
 401            };
 402    private final EditMessage.OnCommitContentListener mEditorContentListener =
 403            new EditMessage.OnCommitContentListener() {
 404                @Override
 405                public boolean onCommitContent(
 406                        InputContentInfoCompat inputContentInfo,
 407                        int flags,
 408                        Bundle opts,
 409                        String[] contentMimeTypes) {
 410                    // try to get permission to read the image, if applicable
 411                    if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION)
 412                            != 0) {
 413                        try {
 414                            inputContentInfo.requestPermission();
 415                        } catch (Exception e) {
 416                            Log.e(
 417                                    Config.LOGTAG,
 418                                    "InputContentInfoCompat#requestPermission() failed.",
 419                                    e);
 420                            Toast.makeText(
 421                                            getActivity(),
 422                                            activity.getString(
 423                                                    R.string.no_permission_to_access_x,
 424                                                    inputContentInfo.getDescription()),
 425                                            Toast.LENGTH_LONG)
 426                                    .show();
 427                            return false;
 428                        }
 429                    }
 430                    if (hasPermissions(
 431                            REQUEST_ADD_EDITOR_CONTENT,
 432                            Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 433                        attachEditorContentToConversation(inputContentInfo.getContentUri());
 434                    } else {
 435                        mPendingEditorContent = inputContentInfo.getContentUri();
 436                    }
 437                    return true;
 438                }
 439            };
 440    private Message selectedMessage;
 441    private final OnClickListener mEnableAccountListener =
 442            new OnClickListener() {
 443                @Override
 444                public void onClick(View v) {
 445                    final Account account = conversation == null ? null : conversation.getAccount();
 446                    if (account != null) {
 447                        account.setOption(Account.OPTION_DISABLED, false);
 448                        activity.xmppConnectionService.updateAccount(account);
 449                    }
 450                }
 451            };
 452    private final OnClickListener mUnblockClickListener =
 453            new OnClickListener() {
 454                @Override
 455                public void onClick(final View v) {
 456                    v.post(() -> v.setVisibility(View.INVISIBLE));
 457                    if (conversation.isDomainBlocked()) {
 458                        BlockContactDialog.show(activity, conversation);
 459                    } else {
 460                        unblockConversation(conversation);
 461                    }
 462                }
 463            };
 464    private final OnClickListener mBlockClickListener = this::showBlockSubmenu;
 465    private final OnClickListener mAddBackClickListener =
 466            new OnClickListener() {
 467
 468                @Override
 469                public void onClick(View v) {
 470                    final Contact contact = conversation == null ? null : conversation.getContact();
 471                    if (contact != null) {
 472                        activity.xmppConnectionService.createContact(contact, true);
 473                        activity.switchToContactDetails(contact);
 474                    }
 475                }
 476            };
 477    private final View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 478    private final OnClickListener mAllowPresenceSubscription =
 479            new OnClickListener() {
 480                @Override
 481                public void onClick(View v) {
 482                    final Contact contact = conversation == null ? null : conversation.getContact();
 483                    if (contact != null) {
 484                        activity.xmppConnectionService.sendPresencePacket(
 485                                contact.getAccount(),
 486                                activity.xmppConnectionService
 487                                        .getPresenceGenerator()
 488                                        .sendPresenceUpdatesTo(contact));
 489                        hideSnackbar();
 490                    }
 491                }
 492            };
 493    protected OnClickListener clickToDecryptListener =
 494            new OnClickListener() {
 495
 496                @Override
 497                public void onClick(View v) {
 498                    PendingIntent pendingIntent =
 499                            conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 500                    if (pendingIntent != null) {
 501                        try {
 502                            getActivity()
 503                                    .startIntentSenderForResult(
 504                                            pendingIntent.getIntentSender(),
 505                                            REQUEST_DECRYPT_PGP,
 506                                            null,
 507                                            0,
 508                                            0,
 509                                            0);
 510                        } catch (SendIntentException e) {
 511                            Toast.makeText(
 512                                            getActivity(),
 513                                            R.string.unable_to_connect_to_keychain,
 514                                            Toast.LENGTH_SHORT)
 515                                    .show();
 516                            conversation
 517                                    .getAccount()
 518                                    .getPgpDecryptionService()
 519                                    .continueDecryption(true);
 520                        }
 521                    }
 522                    updateSnackBar(conversation);
 523                }
 524            };
 525    private final AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 526    private final OnEditorActionListener mEditorActionListener =
 527            (v, actionId, event) -> {
 528                if (actionId == EditorInfo.IME_ACTION_SEND) {
 529                    InputMethodManager imm =
 530                            (InputMethodManager)
 531                                    activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 532                    if (imm != null && imm.isFullscreenMode()) {
 533                        imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 534                    }
 535                    sendMessage();
 536                    return true;
 537                } else {
 538                    return false;
 539                }
 540            };
 541    private final OnClickListener mScrollButtonListener =
 542            new OnClickListener() {
 543
 544                @Override
 545                public void onClick(View v) {
 546                    stopScrolling();
 547                    setSelection(binding.messagesView.getCount() - 1, true);
 548                }
 549            };
 550    private final OnClickListener mSendButtonListener =
 551            new OnClickListener() {
 552
 553                @Override
 554                public void onClick(View v) {
 555                    Object tag = v.getTag();
 556                    if (tag instanceof SendButtonAction) {
 557                        SendButtonAction action = (SendButtonAction) tag;
 558                        switch (action) {
 559                            case TAKE_PHOTO:
 560                            case RECORD_VIDEO:
 561                            case SEND_LOCATION:
 562                            case RECORD_VOICE:
 563                            case CHOOSE_PICTURE:
 564                                attachFile(action.toChoice());
 565                                break;
 566                            case CANCEL:
 567                                if (conversation != null) {
 568                                    if (conversation.setCorrectingMessage(null)) {
 569                                        binding.textinput.setText("");
 570                                        binding.textinput.append(conversation.getDraftMessage());
 571                                        conversation.setDraftMessage(null);
 572                                    } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 573                                        conversation.setNextCounterpart(null);
 574                                        binding.textinput.setText("");
 575                                    } else {
 576                                        binding.textinput.setText("");
 577                                    }
 578                                    updateChatMsgHint();
 579                                    updateSendButton();
 580                                    updateEditablity();
 581                                }
 582                                break;
 583                            default:
 584                                sendMessage();
 585                        }
 586                    } else {
 587                        sendMessage();
 588                    }
 589                }
 590            };
 591    private OnBackPressedCallback backPressedLeaveSingleThread = new OnBackPressedCallback(false) {
 592        @Override
 593        public void handleOnBackPressed() {
 594            conversation.setLockThread(false);
 595            this.setEnabled(false);
 596            conversation.setUserSelectedThread(false);
 597            refresh();
 598            updateThreadFromLastMessage();
 599        }
 600    };
 601    private int completionIndex = 0;
 602    private int lastCompletionLength = 0;
 603    private String incomplete;
 604    private int lastCompletionCursor;
 605    private boolean firstWord = false;
 606    private Message mPendingDownloadableMessage;
 607
 608    private static ConversationFragment findConversationFragment(Activity activity) {
 609        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 610        if (fragment instanceof ConversationFragment) {
 611            return (ConversationFragment) fragment;
 612        }
 613        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 614        if (fragment instanceof ConversationFragment) {
 615            return (ConversationFragment) fragment;
 616        }
 617        return null;
 618    }
 619
 620    public static void startStopPending(Activity activity) {
 621        ConversationFragment fragment = findConversationFragment(activity);
 622        if (fragment != null) {
 623            fragment.messageListAdapter.startStopPending();
 624        }
 625    }
 626
 627    public static void downloadFile(Activity activity, Message message) {
 628        ConversationFragment fragment = findConversationFragment(activity);
 629        if (fragment != null) {
 630            fragment.startDownloadable(message);
 631        }
 632    }
 633
 634    public static void registerPendingMessage(Activity activity, Message message) {
 635        ConversationFragment fragment = findConversationFragment(activity);
 636        if (fragment != null) {
 637            fragment.pendingMessage.push(message);
 638        }
 639    }
 640
 641    public static void openPendingMessage(Activity activity) {
 642        ConversationFragment fragment = findConversationFragment(activity);
 643        if (fragment != null) {
 644            Message message = fragment.pendingMessage.pop();
 645            if (message != null) {
 646                fragment.messageListAdapter.openDownloadable(message);
 647            }
 648        }
 649    }
 650
 651    public static Conversation getConversation(Activity activity) {
 652        return getConversation(activity, R.id.secondary_fragment);
 653    }
 654
 655    private static Conversation getConversation(Activity activity, @IdRes int res) {
 656        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 657        if (fragment instanceof ConversationFragment) {
 658            return ((ConversationFragment) fragment).getConversation();
 659        } else {
 660            return null;
 661        }
 662    }
 663
 664    public static ConversationFragment get(Activity activity) {
 665        FragmentManager fragmentManager = activity.getFragmentManager();
 666        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 667        if (fragment instanceof ConversationFragment) {
 668            return (ConversationFragment) fragment;
 669        } else {
 670            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 671            return fragment instanceof ConversationFragment
 672                    ? (ConversationFragment) fragment
 673                    : null;
 674        }
 675    }
 676
 677    public static Conversation getConversationReliable(Activity activity) {
 678        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 679        if (conversation != null) {
 680            return conversation;
 681        }
 682        return getConversation(activity, R.id.main_fragment);
 683    }
 684
 685    private static boolean scrolledToBottom(AbsListView listView) {
 686        final int count = listView.getCount();
 687        if (count == 0) {
 688            return true;
 689        } else if (listView.getLastVisiblePosition() == count - 1) {
 690            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 691            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 692        } else {
 693            return false;
 694        }
 695    }
 696
 697    private void toggleScrollDownButton() {
 698        toggleScrollDownButton(binding.messagesView);
 699    }
 700
 701    private void toggleScrollDownButton(AbsListView listView) {
 702        if (conversation == null) {
 703            return;
 704        }
 705        if (scrolledToBottom(listView)) {
 706            lastMessageUuid = null;
 707            hideUnreadMessagesCount();
 708        } else {
 709            binding.scrollToBottomButton.setEnabled(true);
 710            binding.scrollToBottomButton.show();
 711            if (lastMessageUuid == null) {
 712                lastMessageUuid = conversation.getLatestMessage().getUuid();
 713            }
 714            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 715                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 716            }
 717        }
 718    }
 719
 720    private int getIndexOf(String uuid, List<Message> messages) {
 721        if (uuid == null) {
 722            return messages.size() - 1;
 723        }
 724        for (int i = 0; i < messages.size(); ++i) {
 725            if (uuid.equals(messages.get(i).getUuid())) {
 726                return i;
 727            } else {
 728                Message next = messages.get(i);
 729                while (next != null && next.wasMergedIntoPrevious()) {
 730                    if (uuid.equals(next.getUuid())) {
 731                        return i;
 732                    }
 733                    next = next.next();
 734                }
 735            }
 736        }
 737        return -1;
 738    }
 739
 740    private ScrollState getScrollPosition() {
 741        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 742        if (listView == null
 743                || listView.getCount() == 0
 744                || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 745            return null;
 746        } else {
 747            final int pos = listView.getFirstVisiblePosition();
 748            final View view = listView.getChildAt(0);
 749            if (view == null) {
 750                return null;
 751            } else {
 752                return new ScrollState(pos, view.getTop());
 753            }
 754        }
 755    }
 756
 757    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 758        if (scrollPosition != null) {
 759
 760            this.lastMessageUuid = lastMessageUuid;
 761            if (lastMessageUuid != null) {
 762                binding.unreadCountCustomView.setUnreadCount(
 763                        conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 764            }
 765            // TODO maybe this needs a 'post'
 766            this.binding.messagesView.setSelectionFromTop(
 767                    scrollPosition.position, scrollPosition.offset);
 768            toggleScrollDownButton();
 769        }
 770    }
 771
 772    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 773        if (conversation == null) {
 774            return;
 775        }
 776        activity.xmppConnectionService.attachLocationToConversation(
 777                conversation,
 778                uri,
 779                new UiCallback<Message>() {
 780
 781                    @Override
 782                    public void success(Message message) {}
 783
 784                    @Override
 785                    public void error(int errorCode, Message object) {
 786                        // TODO show possible pgp error
 787                    }
 788
 789                    @Override
 790                    public void userInputRequired(PendingIntent pi, Message object) {}
 791                });
 792    }
 793
 794    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 795        if (conversation == null) {
 796            return;
 797        }
 798        final Toast prepareFileToast =
 799                Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 800        prepareFileToast.show();
 801        activity.delegateUriPermissionsToService(uri);
 802        activity.xmppConnectionService.attachFileToConversation(
 803                conversation,
 804                uri,
 805                type,
 806                new UiInformableCallback<Message>() {
 807                    @Override
 808                    public void inform(final String text) {
 809                        hidePrepareFileToast(prepareFileToast);
 810                        runOnUiThread(() -> activity.replaceToast(text));
 811                    }
 812
 813                    @Override
 814                    public void success(Message message) {
 815                        runOnUiThread(() -> activity.hideToast());
 816                        hidePrepareFileToast(prepareFileToast);
 817                    }
 818
 819                    @Override
 820                    public void error(final int errorCode, Message message) {
 821                        hidePrepareFileToast(prepareFileToast);
 822                        runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 823                    }
 824
 825                    @Override
 826                    public void userInputRequired(PendingIntent pi, Message message) {
 827                        hidePrepareFileToast(prepareFileToast);
 828                    }
 829                });
 830    }
 831
 832    public void attachEditorContentToConversation(Uri uri) {
 833        mediaPreviewAdapter.addMediaPreviews(
 834                Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 835        toggleInputMethod();
 836    }
 837
 838    private void attachImageToConversation(Conversation conversation, Uri uri, String type) {
 839        if (conversation == null) {
 840            return;
 841        }
 842        final Toast prepareFileToast =
 843                Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 844        prepareFileToast.show();
 845        activity.delegateUriPermissionsToService(uri);
 846        activity.xmppConnectionService.attachImageToConversation(
 847                conversation,
 848                uri,
 849                type,
 850                new UiCallback<Message>() {
 851
 852                    @Override
 853                    public void userInputRequired(PendingIntent pi, Message object) {
 854                        hidePrepareFileToast(prepareFileToast);
 855                    }
 856
 857                    @Override
 858                    public void success(Message message) {
 859                        hidePrepareFileToast(prepareFileToast);
 860                    }
 861
 862                    @Override
 863                    public void error(final int error, final Message message) {
 864                        hidePrepareFileToast(prepareFileToast);
 865                        final ConversationsActivity activity = ConversationFragment.this.activity;
 866                        if (activity == null) {
 867                            return;
 868                        }
 869                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 870                    }
 871                });
 872    }
 873
 874    private void hidePrepareFileToast(final Toast prepareFileToast) {
 875        if (prepareFileToast != null && activity != null) {
 876            activity.runOnUiThread(prepareFileToast::cancel);
 877        }
 878    }
 879
 880    private void sendMessage() {
 881        conversation.setUserSelectedThread(false);
 882        if (mediaPreviewAdapter.hasAttachments()) {
 883            commitAttachments();
 884            return;
 885        }
 886        final Editable text = this.binding.textinput.getText();
 887        final String body = text == null ? "" : text.toString();
 888        final Conversation conversation = this.conversation;
 889        if (body.length() == 0 || conversation == null) {
 890            return;
 891        }
 892        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_TEXT)) {
 893            return;
 894        }
 895        final Message message;
 896        if (conversation.getCorrectingMessage() == null) {
 897            if (conversation.getReplyTo() != null) {
 898                message = conversation.getReplyTo().reply();
 899                message.appendBody(body);
 900                message.setEncryption(conversation.getNextEncryption());
 901            } else {
 902                message = new Message(conversation, body, conversation.getNextEncryption());
 903            }
 904            message.setThread(conversation.getThread());
 905            Message.configurePrivateMessage(message);
 906        } else {
 907            message = conversation.getCorrectingMessage();
 908            message.setBody(body);
 909            message.putEdited(message.getUuid(), message.getServerMsgId());
 910            message.setServerMsgId(null);
 911            message.setUuid(UUID.randomUUID().toString());
 912        }
 913        switch (conversation.getNextEncryption()) {
 914            case Message.ENCRYPTION_PGP:
 915                sendPgpMessage(message);
 916                break;
 917            default:
 918                sendMessage(message);
 919        }
 920        setupReply(null);
 921    }
 922
 923    private boolean trustKeysIfNeeded(final Conversation conversation, final int requestCode) {
 924        return conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL
 925                && trustKeysIfNeeded(requestCode);
 926    }
 927
 928    protected boolean trustKeysIfNeeded(int requestCode) {
 929        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 930        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 931        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 932        boolean hasUndecidedOwn =
 933                !axolotlService
 934                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided())
 935                        .isEmpty();
 936        boolean hasUndecidedContacts =
 937                !axolotlService
 938                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets)
 939                        .isEmpty();
 940        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 941        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 942        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 943        if (hasUndecidedOwn
 944                || hasUndecidedContacts
 945                || hasPendingKeys
 946                || hasNoTrustedKeys
 947                || hasUnaccepted
 948                || downloadInProgress) {
 949            axolotlService.createSessionsIfNeeded(conversation);
 950            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 951            String[] contacts = new String[targets.size()];
 952            for (int i = 0; i < contacts.length; ++i) {
 953                contacts[i] = targets.get(i).toString();
 954            }
 955            intent.putExtra("contacts", contacts);
 956            intent.putExtra(
 957                    EXTRA_ACCOUNT,
 958                    conversation.getAccount().getJid().asBareJid().toEscapedString());
 959            intent.putExtra("conversation", conversation.getUuid());
 960            startActivityForResult(intent, requestCode);
 961            return true;
 962        } else {
 963            return false;
 964        }
 965    }
 966
 967    public void updateChatMsgHint() {
 968        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 969        if (conversation.getCorrectingMessage() != null) {
 970            this.binding.textInputHint.setVisibility(View.GONE);
 971            this.binding.textinput.setHint(R.string.send_corrected_message);
 972            binding.conversationViewPager.setCurrentItem(0);
 973        } else if (multi && conversation.getNextCounterpart() != null) {
 974            this.binding.textinput.setHint(R.string.send_message);
 975            this.binding.textInputHint.setVisibility(View.VISIBLE);
 976            this.binding.textInputHint.setText(
 977                    getString(
 978                            R.string.send_private_message_to,
 979                            conversation.getNextCounterpart().getResource()));
 980            binding.conversationViewPager.setCurrentItem(0);
 981        } else if (multi && !conversation.getMucOptions().participating()) {
 982            this.binding.textInputHint.setVisibility(View.GONE);
 983            this.binding.textinput.setHint(R.string.you_are_not_participating);
 984        } else {
 985            this.binding.textInputHint.setVisibility(View.GONE);
 986            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 987            getActivity().invalidateOptionsMenu();
 988        }
 989
 990        binding.messagesView.post(this::updateThreadFromLastMessage);
 991    }
 992
 993    public void setupIme() {
 994        this.binding.textinput.refreshIme();
 995    }
 996
 997    private void handleActivityResult(ActivityResult activityResult) {
 998        if (activityResult.resultCode == Activity.RESULT_OK) {
 999            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
1000        } else {
1001            handleNegativeActivityResult(activityResult.requestCode);
1002        }
1003    }
1004
1005    private void handlePositiveActivityResult(int requestCode, final Intent data) {
1006        switch (requestCode) {
1007            case REQUEST_SAVE_STICKER:
1008                final DocumentFile df = DocumentFile.fromSingleUri(activity, data.getData());
1009                final File f = savingAsSticker;
1010                savingAsSticker = null;
1011                try {
1012                    activity.xmppConnectionService.getFileBackend().copyFileToDocumentFile(activity, f, df);
1013                    Toast.makeText(activity, "Sticker saved", Toast.LENGTH_SHORT).show();
1014                } catch (final FileBackend.FileCopyException e) {
1015                    Toast.makeText(activity, e.getResId(), Toast.LENGTH_SHORT).show();
1016                }
1017                break;
1018            case REQUEST_TRUST_KEYS_TEXT:
1019                sendMessage();
1020                break;
1021            case REQUEST_TRUST_KEYS_ATTACHMENTS:
1022                commitAttachments();
1023                break;
1024            case REQUEST_START_AUDIO_CALL:
1025                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1026                break;
1027            case REQUEST_START_VIDEO_CALL:
1028                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1029                break;
1030            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1031                final List<Attachment> imageUris =
1032                        Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
1033                mediaPreviewAdapter.addMediaPreviews(imageUris);
1034                toggleInputMethod();
1035                break;
1036            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1037                final Uri takePhotoUri = pendingTakePhotoUri.pop();
1038                if (takePhotoUri != null) {
1039                    mediaPreviewAdapter.addMediaPreviews(
1040                            Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
1041                    toggleInputMethod();
1042                } else {
1043                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
1044                }
1045                break;
1046            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1047            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1048            case ATTACHMENT_CHOICE_RECORD_VOICE:
1049                final Attachment.Type type =
1050                        requestCode == ATTACHMENT_CHOICE_RECORD_VOICE
1051                                ? Attachment.Type.RECORDING
1052                                : Attachment.Type.FILE;
1053                final List<Attachment> fileUris =
1054                        Attachment.extractAttachments(getActivity(), data, type);
1055                mediaPreviewAdapter.addMediaPreviews(fileUris);
1056                toggleInputMethod();
1057                break;
1058            case ATTACHMENT_CHOICE_LOCATION:
1059                final double latitude = data.getDoubleExtra("latitude", 0);
1060                final double longitude = data.getDoubleExtra("longitude", 0);
1061                final int accuracy = data.getIntExtra("accuracy", 0);
1062                final Uri geo;
1063                if (accuracy > 0) {
1064                    geo = Uri.parse(String.format("geo:%s,%s;u=%s", latitude, longitude, accuracy));
1065                } else {
1066                    geo = Uri.parse(String.format("geo:%s,%s", latitude, longitude));
1067                }
1068                mediaPreviewAdapter.addMediaPreviews(
1069                        Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
1070                toggleInputMethod();
1071                break;
1072            case REQUEST_INVITE_TO_CONVERSATION:
1073                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
1074                if (invite != null) {
1075                    if (invite.execute(activity)) {
1076                        activity.mToast =
1077                                Toast.makeText(
1078                                        activity, R.string.creating_conference, Toast.LENGTH_LONG);
1079                        activity.mToast.show();
1080                    }
1081                }
1082                break;
1083        }
1084    }
1085
1086    private void commitAttachments() {
1087        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
1088        if (anyNeedsExternalStoragePermission(attachments)
1089                && !hasPermissions(
1090                        REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1091            return;
1092        }
1093        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_ATTACHMENTS)) {
1094            return;
1095        }
1096        final PresenceSelector.OnPresenceSelected callback =
1097                () -> {
1098                    for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
1099                        final Attachment attachment = i.next();
1100                        if (attachment.getType() == Attachment.Type.LOCATION) {
1101                            attachLocationToConversation(conversation, attachment.getUri());
1102                        } else if (attachment.getType() == Attachment.Type.IMAGE) {
1103                            Log.d(
1104                                    Config.LOGTAG,
1105                                    "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
1106                            attachImageToConversation(
1107                                    conversation, attachment.getUri(), attachment.getMime());
1108                        } else {
1109                            Log.d(
1110                                    Config.LOGTAG,
1111                                    "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
1112                            attachFileToConversation(
1113                                    conversation, attachment.getUri(), attachment.getMime());
1114                        }
1115                    }
1116                    mediaPreviewAdapter.notifyDataSetChanged();
1117                    toggleInputMethod();
1118                };
1119        if (conversation == null
1120                || conversation.getMode() == Conversation.MODE_MULTI
1121                || Attachment.canBeSendInband(attachments)
1122                || (conversation.getAccount().httpUploadAvailable()
1123                        && FileBackend.allFilesUnderSize(
1124                                getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
1125            callback.onPresenceSelected();
1126        } else {
1127            activity.selectPresence(conversation, callback);
1128        }
1129        setupReply(null);
1130    }
1131
1132    private static boolean anyNeedsExternalStoragePermission(
1133            final Collection<Attachment> attachments) {
1134        for (final Attachment attachment : attachments) {
1135            if (attachment.getType() != Attachment.Type.LOCATION) {
1136                return true;
1137            }
1138        }
1139        return false;
1140    }
1141
1142    public void toggleInputMethod() {
1143        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
1144        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
1145        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
1146        updateSendButton();
1147    }
1148
1149    private void handleNegativeActivityResult(int requestCode) {
1150        switch (requestCode) {
1151            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1152                if (pendingTakePhotoUri.clear()) {
1153                    Log.d(
1154                            Config.LOGTAG,
1155                            "cleared pending photo uri after negative activity result");
1156                }
1157                break;
1158        }
1159    }
1160
1161    @Override
1162    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
1163        super.onActivityResult(requestCode, resultCode, data);
1164        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
1165        if (activity != null && activity.xmppConnectionService != null) {
1166            handleActivityResult(activityResult);
1167        } else {
1168            this.postponedActivityResult.push(activityResult);
1169        }
1170    }
1171
1172    public void unblockConversation(final Blockable conversation) {
1173        activity.xmppConnectionService.sendUnblockRequest(conversation);
1174    }
1175
1176    @Override
1177    public void onAttach(Activity activity) {
1178        super.onAttach(activity);
1179        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
1180        if (activity instanceof ConversationsActivity) {
1181            this.activity = (ConversationsActivity) activity;
1182        } else {
1183            throw new IllegalStateException(
1184                    "Trying to attach fragment to activity that is not the ConversationsActivity");
1185        }
1186    }
1187
1188    @Override
1189    public void onDetach() {
1190        super.onDetach();
1191        this.activity = null; // TODO maybe not a good idea since some callbacks really need it
1192    }
1193
1194    @Override
1195    public void onCreate(Bundle savedInstanceState) {
1196        super.onCreate(savedInstanceState);
1197        setHasOptionsMenu(true);
1198        activity.getOnBackPressedDispatcher().addCallback(backPressedLeaveSingleThread);
1199    }
1200
1201    @Override
1202    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
1203        menuInflater.inflate(R.menu.fragment_conversation, menu);
1204        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
1205        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
1206        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
1207        final MenuItem menuMute = menu.findItem(R.id.action_mute);
1208        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
1209        final MenuItem menuCall = menu.findItem(R.id.action_call);
1210        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
1211        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
1212        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
1213
1214        if (conversation != null) {
1215            if (conversation.getMode() == Conversation.MODE_MULTI) {
1216                menuContactDetails.setVisible(false);
1217                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
1218                menuMucDetails.setTitle(
1219                        conversation.getMucOptions().isPrivateAndNonAnonymous()
1220                                ? R.string.action_muc_details
1221                                : R.string.channel_details);
1222                menuCall.setVisible(false);
1223                menuOngoingCall.setVisible(false);
1224            } else {
1225                final XmppConnectionService service =
1226                        activity == null ? null : activity.xmppConnectionService;
1227                final Optional<OngoingRtpSession> ongoingRtpSession =
1228                        service == null
1229                                ? Optional.absent()
1230                                : service.getJingleConnectionManager()
1231                                        .getOngoingRtpConnection(conversation.getContact());
1232                if (ongoingRtpSession.isPresent()) {
1233                    menuOngoingCall.setVisible(true);
1234                    menuCall.setVisible(false);
1235                } else {
1236                    menuOngoingCall.setVisible(false);
1237                    final RtpCapability.Capability rtpCapability =
1238                            RtpCapability.check(conversation.getContact());
1239                    final boolean cameraAvailable =
1240                            activity != null && activity.isCameraFeatureAvailable();
1241                    menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
1242                    menuVideoCall.setVisible(
1243                            rtpCapability == RtpCapability.Capability.VIDEO && cameraAvailable);
1244                }
1245                menuContactDetails.setVisible(!this.conversation.withSelf());
1246                menuMucDetails.setVisible(false);
1247                menuInviteContact.setVisible(
1248                        service != null
1249                                && service.findConferenceServer(conversation.getAccount()) != null);
1250            }
1251            if (conversation.isMuted()) {
1252                menuMute.setVisible(false);
1253            } else {
1254                menuUnmute.setVisible(false);
1255            }
1256            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1257            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1258            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1259                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1260            } else {
1261                menuTogglePinned.setTitle(R.string.add_to_favorites);
1262            }
1263        }
1264        super.onCreateOptionsMenu(menu, menuInflater);
1265    }
1266
1267    @Override
1268    public View onCreateView(
1269            final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1270        this.binding =
1271                DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1272        binding.getRoot().setOnClickListener(null); // TODO why the fuck did we do this?
1273
1274        binding.textinput.addTextChangedListener(
1275                new StylingHelper.MessageEditorStyler(binding.textinput));
1276
1277        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1278        binding.textinput.setRichContentListener(new String[] {"image/*"}, mEditorContentListener);
1279
1280        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1281        binding.contextPreviewCancel.setOnClickListener((v) -> setupReply(null));
1282
1283        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1284        binding.messagesView.setOnScrollListener(mOnScrollListener);
1285        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1286        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1287        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1288        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1289        messageListAdapter.setOnContactPictureClicked(this);
1290        messageListAdapter.setOnContactPictureLongClicked(this);
1291        messageListAdapter.setOnInlineImageLongClicked(this);
1292        binding.messagesView.setAdapter(messageListAdapter);
1293
1294        registerForContextMenu(binding.messagesView);
1295
1296        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1297            this.binding.textinput.setCustomInsertionActionModeCallback(
1298                    new EditMessageActionModeCallback(this.binding.textinput));
1299        }
1300
1301        messageListAdapter.setOnMessageBoxClicked(message -> {
1302            setThread(message.getThread());
1303            conversation.setUserSelectedThread(true);
1304        });
1305
1306        messageListAdapter.setOnMessageBoxSwiped(message -> {
1307            setupReply(message);
1308        });
1309
1310        binding.threadIdenticonLayout.setOnClickListener(v -> {
1311            boolean wasLocked = conversation.getLockThread();
1312            conversation.setLockThread(false);
1313            backPressedLeaveSingleThread.setEnabled(false);
1314            if (wasLocked) {
1315                conversation.setUserSelectedThread(false);
1316                refresh();
1317                updateThreadFromLastMessage();
1318            } else {
1319                newThread();
1320                conversation.setUserSelectedThread(true);
1321                newThreadTutorialToast("Switched to new thread");
1322            }
1323        });
1324
1325        binding.threadIdenticonLayout.setOnLongClickListener(v -> {
1326            boolean wasLocked = conversation.getLockThread();
1327            conversation.setLockThread(false);
1328            backPressedLeaveSingleThread.setEnabled(false);
1329            setThread(null);
1330            conversation.setUserSelectedThread(true);
1331            if (wasLocked) refresh();
1332            newThreadTutorialToast("Cleared thread");
1333            return true;
1334        });
1335
1336        return binding.getRoot();
1337    }
1338
1339    protected void newThreadTutorialToast(String s) {
1340        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
1341        final int tutorialCount = p.getInt("thread_tutorial", 0);
1342        if (tutorialCount < 5) {
1343            Toast.makeText(activity, s, Toast.LENGTH_SHORT).show();
1344            p.edit().putInt("thread_tutorial", tutorialCount + 1).apply();
1345        }
1346    }
1347
1348    @Override
1349    public void onDestroyView() {
1350        super.onDestroyView();
1351        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1352        messageListAdapter.setOnContactPictureClicked(null);
1353        messageListAdapter.setOnContactPictureLongClicked(null);
1354        messageListAdapter.setOnInlineImageLongClicked(null);
1355        if (conversation != null) conversation.setupViewPager(null, null);
1356    }
1357
1358    private void quoteText(String text) {
1359        if (binding.textinput.isEnabled()) {
1360            binding.textinput.insertAsQuote(text);
1361            binding.textinput.requestFocus();
1362            InputMethodManager inputMethodManager =
1363                    (InputMethodManager)
1364                            getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1365            if (inputMethodManager != null) {
1366                inputMethodManager.showSoftInput(
1367                        binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1368            }
1369        }
1370    }
1371
1372    private void quoteMessage(Message message) {
1373        setThread(message.getThread());
1374        conversation.setUserSelectedThread(true);
1375        if (message.getThread() == null) newThread();
1376        setupReply(message);
1377    }
1378
1379    private void setupReply(Message message) {
1380        conversation.setReplyTo(message);
1381        if (message == null) {
1382            binding.contextPreview.setVisibility(View.GONE);
1383            return;
1384        }
1385
1386        SpannableStringBuilder body = message.getSpannableBody(null, null);
1387        messageListAdapter.handleTextQuotes(body, activity.isDarkTheme());
1388        binding.contextPreviewText.setText(body);
1389        binding.contextPreview.setVisibility(View.VISIBLE);
1390    }
1391
1392    private void setThread(Element thread) {
1393        this.conversation.setThread(thread);
1394        binding.threadIdenticon.setAlpha(0f);
1395        binding.threadIdenticonLock.setVisibility(this.conversation.getLockThread() ? View.VISIBLE : View.GONE);
1396        if (thread != null) {
1397            final String threadId = thread.getContent();
1398            if (threadId != null) {
1399                binding.threadIdenticon.setAlpha(1f);
1400                binding.threadIdenticon.setColor(UIHelper.getColorForName(threadId));
1401                binding.threadIdenticon.setHash(UIHelper.identiconHash(threadId));
1402            }
1403        }
1404        updateSendButton();
1405    }
1406
1407    @Override
1408    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1409        // This should cancel any remaining click events that would otherwise trigger links
1410        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1411        synchronized (this.messageList) {
1412            super.onCreateContextMenu(menu, v, menuInfo);
1413            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1414            this.selectedMessage = this.messageList.get(acmi.position);
1415            populateContextMenu(menu);
1416        }
1417    }
1418
1419    private void populateContextMenu(ContextMenu menu) {
1420        final Message m = this.selectedMessage;
1421        final Transferable t = m.getTransferable();
1422        Message relevantForCorrection = m;
1423        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1424            relevantForCorrection = relevantForCorrection.next();
1425        }
1426        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1427
1428            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE
1429                    || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1430                return;
1431            }
1432
1433            if (m.getStatus() == Message.STATUS_RECEIVED
1434                    && t != null
1435                    && (t.getStatus() == Transferable.STATUS_CANCELLED
1436                            || t.getStatus() == Transferable.STATUS_FAILED)) {
1437                return;
1438            }
1439
1440            final boolean deleted = m.isDeleted();
1441            final boolean encrypted =
1442                    m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1443                            || m.getEncryption() == Message.ENCRYPTION_PGP;
1444            final boolean receiving =
1445                    m.getStatus() == Message.STATUS_RECEIVED
1446                            && (t instanceof JingleFileTransferConnection
1447                                    || t instanceof HttpDownloadConnection);
1448            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1449            MenuItem openWith = menu.findItem(R.id.open_with);
1450            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1451            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1452            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1453            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1454            MenuItem retractMessage = menu.findItem(R.id.retract_message);
1455            MenuItem moderateMessage = menu.findItem(R.id.moderate_message);
1456            MenuItem onlyThisThread = menu.findItem(R.id.only_this_thread);
1457            MenuItem shareWith = menu.findItem(R.id.share_with);
1458            MenuItem sendAgain = menu.findItem(R.id.send_again);
1459            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1460            MenuItem saveAsSticker = menu.findItem(R.id.save_as_sticker);
1461            MenuItem downloadFile = menu.findItem(R.id.download_file);
1462            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1463            MenuItem blockMedia = menu.findItem(R.id.block_media);
1464            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1465            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1466            onlyThisThread.setVisible(!conversation.getLockThread() && m.getThread() != null);
1467            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1468            final boolean showError =
1469                    m.getStatus() == Message.STATUS_SEND_FAILED
1470                            && m.getErrorMessage() != null
1471                            && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1472            if (!encrypted && !m.getBody().equals("")) {
1473                copyMessage.setVisible(true);
1474                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1475            }
1476            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1477                retryDecryption.setVisible(true);
1478            }
1479            if (!showError
1480                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1481                    && !m.isGeoUri()
1482                    && relevantForCorrection.isLastCorrectableMessage()
1483                    && m.getConversation() instanceof Conversation) {
1484                correctMessage.setVisible(true);
1485                if (!relevantForCorrection.getBody().equals("") && !relevantForCorrection.getBody().equals(" ")) retractMessage.setVisible(true);
1486            }
1487            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")) {
1488                moderateMessage.setVisible(true);
1489            }
1490            if ((m.isFileOrImage() && !deleted && !receiving)
1491                    || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())
1492                            && !unInitiatedButKnownSize
1493                            && t == null) {
1494                shareWith.setVisible(true);
1495            }
1496            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1497                sendAgain.setVisible(true);
1498            }
1499            if (m.hasFileOnRemoteHost()
1500                    || m.isGeoUri()
1501                    || m.treatAsDownloadable()
1502                    || unInitiatedButKnownSize
1503                    || t instanceof HttpDownloadConnection) {
1504                copyUrl.setVisible(true);
1505            }
1506            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1507                downloadFile.setVisible(true);
1508                downloadFile.setTitle(
1509                        activity.getString(
1510                                R.string.download_x_file,
1511                                UIHelper.getFileDescriptionString(activity, m)));
1512            }
1513            final boolean waitingOfferedSending =
1514                    m.getStatus() == Message.STATUS_WAITING
1515                            || m.getStatus() == Message.STATUS_UNSEND
1516                            || m.getStatus() == Message.STATUS_OFFERED;
1517            final boolean cancelable =
1518                    (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1519            if (cancelable) {
1520                cancelTransmission.setVisible(true);
1521            }
1522            if (m.isFileOrImage() && !deleted && !cancelable) {
1523                final String path = m.getRelativeFilePath();
1524                if (path == null
1525                        || !path.startsWith("/")
1526                        || FileBackend.inConversationsDirectory(requireActivity(), path)) {
1527                    saveAsSticker.setVisible(true);
1528                    blockMedia.setVisible(true);
1529                    deleteFile.setVisible(true);
1530                    deleteFile.setTitle(
1531                            activity.getString(
1532                                    R.string.delete_x_file,
1533                                    UIHelper.getFileDescriptionString(activity, m)));
1534                }
1535            }
1536
1537            if (m.getFileParams() != null && !m.getFileParams().getThumbnails().isEmpty()) {
1538                // We might be showing a thumbnail worth blocking
1539                blockMedia.setVisible(true);
1540            }
1541            if (showError) {
1542                showErrorMessage.setVisible(true);
1543            }
1544            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1545            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m))
1546                    || (mime != null && mime.startsWith("audio/"))) {
1547                openWith.setVisible(true);
1548            }
1549        }
1550    }
1551
1552    @Override
1553    public boolean onContextItemSelected(MenuItem item) {
1554        switch (item.getItemId()) {
1555            case R.id.share_with:
1556                ShareUtil.share(activity, selectedMessage);
1557                return true;
1558            case R.id.correct_message:
1559                correctMessage(selectedMessage);
1560                return true;
1561            case R.id.retract_message:
1562                new AlertDialog.Builder(activity)
1563                    .setTitle(R.string.retract_message)
1564                    .setMessage("Do you really want to retract this message?")
1565                    .setPositiveButton(R.string.yes, (dialog, whichButton) -> {
1566                        Message message = selectedMessage;
1567                        while (message.mergeable(message.next())) {
1568                            message = message.next();
1569                        }
1570                        message.setBody(" ");
1571                        message.putEdited(message.getUuid(), message.getServerMsgId());
1572                        message.setServerMsgId(null);
1573                        message.setUuid(UUID.randomUUID().toString());
1574                        sendMessage(message);
1575                    })
1576                    .setNegativeButton(R.string.no, null).show();
1577                return true;
1578            case R.id.moderate_message:
1579                activity.quickEdit("Spam", (reason) -> {
1580                    activity.xmppConnectionService.moderateMessage(conversation.getAccount(), selectedMessage, reason);
1581                    return null;
1582                }, R.string.moderate_reason, false, false, true);
1583                return true;
1584            case R.id.copy_message:
1585                ShareUtil.copyToClipboard(activity, selectedMessage);
1586                return true;
1587            case R.id.quote_message:
1588                quoteMessage(selectedMessage);
1589                return true;
1590            case R.id.send_again:
1591                resendMessage(selectedMessage);
1592                return true;
1593            case R.id.copy_url:
1594                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1595                return true;
1596            case R.id.save_as_sticker:
1597                saveAsSticker(selectedMessage);
1598                return true;
1599            case R.id.download_file:
1600                startDownloadable(selectedMessage);
1601                return true;
1602            case R.id.cancel_transmission:
1603                cancelTransmission(selectedMessage);
1604                return true;
1605            case R.id.retry_decryption:
1606                retryDecryption(selectedMessage);
1607                return true;
1608            case R.id.block_media:
1609                new AlertDialog.Builder(activity)
1610                    .setTitle(R.string.block_media)
1611                    .setMessage("Do you really want to block this media in all messages?")
1612                    .setPositiveButton(R.string.yes, (dialog, whichButton) -> {
1613                        List<Element> thumbs = selectedMessage.getFileParams() != null ? selectedMessage.getFileParams().getThumbnails() : null;
1614                        if (thumbs != null && !thumbs.isEmpty()) {
1615                            for (Element thumb : thumbs) {
1616                                Uri uri = Uri.parse(thumb.getAttribute("uri"));
1617                                if (uri.getScheme().equals("cid")) {
1618                                    Cid cid = BobTransfer.cid(uri);
1619                                    if (cid == null) continue;
1620                                    DownloadableFile f = activity.xmppConnectionService.getFileForCid(cid);
1621                                    activity.xmppConnectionService.blockMedia(f);
1622                                    activity.xmppConnectionService.evictPreview(f);
1623                                    f.delete();
1624                                }
1625                            }
1626                        }
1627                        File f = activity.xmppConnectionService.getFileBackend().getFile(selectedMessage);
1628                        activity.xmppConnectionService.blockMedia(f);
1629                        activity.xmppConnectionService.getFileBackend().deleteFile(selectedMessage);
1630                        selectedMessage.setDeleted(true);
1631                        activity.xmppConnectionService.evictPreview(f);
1632                        activity.xmppConnectionService.updateMessage(selectedMessage, false);
1633                        activity.onConversationsListItemUpdated();
1634                        refresh();
1635                    })
1636                    .setNegativeButton(R.string.no, null).show();
1637                return true;
1638            case R.id.delete_file:
1639                deleteFile(selectedMessage);
1640                return true;
1641            case R.id.show_error_message:
1642                showErrorMessage(selectedMessage);
1643                return true;
1644            case R.id.open_with:
1645                openWith(selectedMessage);
1646                return true;
1647            case R.id.only_this_thread:
1648                conversation.setLockThread(true);
1649                backPressedLeaveSingleThread.setEnabled(true);
1650                setThread(selectedMessage.getThread());
1651                refresh();
1652                return true;
1653            default:
1654                return super.onContextItemSelected(item);
1655        }
1656    }
1657
1658    @Override
1659    public boolean onOptionsItemSelected(final MenuItem item) {
1660        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1661            return false;
1662        } else if (conversation == null) {
1663            return super.onOptionsItemSelected(item);
1664        }
1665        switch (item.getItemId()) {
1666            case R.id.encryption_choice_axolotl:
1667            case R.id.encryption_choice_pgp:
1668            case R.id.encryption_choice_none:
1669                handleEncryptionSelection(item);
1670                break;
1671            case R.id.attach_choose_picture:
1672            case R.id.attach_take_picture:
1673            case R.id.attach_record_video:
1674            case R.id.attach_choose_file:
1675            case R.id.attach_record_voice:
1676            case R.id.attach_location:
1677                handleAttachmentSelection(item);
1678                break;
1679            case R.id.action_search:
1680                startSearch();
1681                break;
1682            case R.id.action_archive:
1683                activity.xmppConnectionService.archiveConversation(conversation);
1684                break;
1685            case R.id.action_contact_details:
1686                activity.switchToContactDetails(conversation.getContact());
1687                break;
1688            case R.id.action_muc_details:
1689                ConferenceDetailsActivity.open(activity, conversation);
1690                break;
1691            case R.id.action_invite:
1692                startActivityForResult(
1693                        ChooseContactActivity.create(activity, conversation),
1694                        REQUEST_INVITE_TO_CONVERSATION);
1695                break;
1696            case R.id.action_clear_history:
1697                clearHistoryDialog(conversation);
1698                break;
1699            case R.id.action_mute:
1700                muteConversationDialog(conversation);
1701                break;
1702            case R.id.action_unmute:
1703                unMuteConversation(conversation);
1704                break;
1705            case R.id.action_block:
1706            case R.id.action_unblock:
1707                final Activity activity = getActivity();
1708                if (activity instanceof XmppActivity) {
1709                    BlockContactDialog.show((XmppActivity) activity, conversation);
1710                }
1711                break;
1712            case R.id.action_audio_call:
1713                checkPermissionAndTriggerAudioCall();
1714                break;
1715            case R.id.action_video_call:
1716                checkPermissionAndTriggerVideoCall();
1717                break;
1718            case R.id.action_ongoing_call:
1719                returnToOngoingCall();
1720                break;
1721            case R.id.action_toggle_pinned:
1722                togglePinned();
1723                break;
1724            case R.id.action_refresh_feature_discovery:
1725                refreshFeatureDiscovery();
1726                break;
1727            default:
1728                break;
1729        }
1730        return super.onOptionsItemSelected(item);
1731    }
1732
1733    public boolean onBackPressed() {
1734        boolean wasLocked = conversation.getLockThread();
1735        conversation.setLockThread(false);
1736        backPressedLeaveSingleThread.setEnabled(false);
1737        if (wasLocked) {
1738            conversation.setUserSelectedThread(false);
1739            refresh();
1740            updateThreadFromLastMessage();
1741            return true;
1742        }
1743        return false;
1744    }
1745
1746    private void startSearch() {
1747        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1748        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1749        startActivity(intent);
1750    }
1751
1752    private void returnToOngoingCall() {
1753        final Optional<OngoingRtpSession> ongoingRtpSession =
1754                activity.xmppConnectionService
1755                        .getJingleConnectionManager()
1756                        .getOngoingRtpConnection(conversation.getContact());
1757        if (ongoingRtpSession.isPresent()) {
1758            final OngoingRtpSession id = ongoingRtpSession.get();
1759            final Intent intent = new Intent(activity, RtpSessionActivity.class);
1760            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1761            intent.putExtra(
1762                    RtpSessionActivity.EXTRA_ACCOUNT,
1763                    id.getAccount().getJid().asBareJid().toEscapedString());
1764            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1765            if (id instanceof AbstractJingleConnection.Id) {
1766                intent.setAction(Intent.ACTION_VIEW);
1767                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1768            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1769                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1770                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1771                } else {
1772                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1773                }
1774            }
1775            activity.startActivity(intent);
1776        }
1777    }
1778
1779    private void refreshFeatureDiscovery() {
1780        for (Map.Entry<String, Presence> entry : conversation.getContact().getPresences().getPresencesMap().entrySet()) {
1781            Jid jid = conversation.getContact().getJid();
1782            if (!entry.getKey().equals("")) jid = jid.withResource(entry.getKey());
1783            activity.xmppConnectionService.fetchCaps(conversation.getAccount(), jid, entry.getValue(), () -> {
1784                if (activity == null) return;
1785                activity.runOnUiThread(() -> {
1786                    refresh();
1787                    refreshCommands();
1788                });
1789            });
1790        }
1791    }
1792
1793    private void togglePinned() {
1794        final boolean pinned =
1795                conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1796        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1797        activity.xmppConnectionService.updateConversation(conversation);
1798        activity.invalidateOptionsMenu();
1799    }
1800
1801    private void checkPermissionAndTriggerAudioCall() {
1802        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1803            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1804            return;
1805        }
1806        final List<String> permissions;
1807        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1808            permissions =
1809                    Arrays.asList(
1810                            Manifest.permission.RECORD_AUDIO,
1811                            Manifest.permission.BLUETOOTH_CONNECT);
1812        } else {
1813            permissions = Collections.singletonList(Manifest.permission.RECORD_AUDIO);
1814        }
1815        if (hasPermissions(REQUEST_START_AUDIO_CALL, permissions)) {
1816            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1817        }
1818    }
1819
1820    private void checkPermissionAndTriggerVideoCall() {
1821        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1822            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1823            return;
1824        }
1825        final List<String> permissions;
1826        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1827            permissions =
1828                    Arrays.asList(
1829                            Manifest.permission.RECORD_AUDIO,
1830                            Manifest.permission.CAMERA,
1831                            Manifest.permission.BLUETOOTH_CONNECT);
1832        } else {
1833            permissions =
1834                    Arrays.asList(Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA);
1835        }
1836        if (hasPermissions(REQUEST_START_VIDEO_CALL, permissions)) {
1837            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1838        }
1839    }
1840
1841    private void triggerRtpSession(final String action) {
1842        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy() != null) {
1843            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG)
1844                    .show();
1845            return;
1846        }
1847        final Contact contact = conversation.getContact();
1848        if (contact.getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1849            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1850        } else {
1851            final RtpCapability.Capability capability;
1852            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1853                capability = RtpCapability.Capability.VIDEO;
1854            } else {
1855                capability = RtpCapability.Capability.AUDIO;
1856            }
1857            PresenceSelector.selectFullJidForDirectRtpConnection(
1858                    activity,
1859                    contact,
1860                    capability,
1861                    fullJid -> {
1862                        triggerRtpSession(contact.getAccount(), fullJid, action);
1863                    });
1864        }
1865    }
1866
1867    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1868        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1869        intent.setAction(action);
1870        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1871        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1872        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1873        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1874        startActivity(intent);
1875    }
1876
1877    private void handleAttachmentSelection(MenuItem item) {
1878        switch (item.getItemId()) {
1879            case R.id.attach_choose_picture:
1880                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1881                break;
1882            case R.id.attach_take_picture:
1883                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1884                break;
1885            case R.id.attach_record_video:
1886                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1887                break;
1888            case R.id.attach_choose_file:
1889                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1890                break;
1891            case R.id.attach_record_voice:
1892                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1893                break;
1894            case R.id.attach_location:
1895                attachFile(ATTACHMENT_CHOICE_LOCATION);
1896                break;
1897        }
1898    }
1899
1900    private void handleEncryptionSelection(MenuItem item) {
1901        if (conversation == null) {
1902            return;
1903        }
1904        final boolean updated;
1905        switch (item.getItemId()) {
1906            case R.id.encryption_choice_none:
1907                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1908                item.setChecked(true);
1909                break;
1910            case R.id.encryption_choice_pgp:
1911                if (activity.hasPgp()) {
1912                    if (conversation.getAccount().getPgpSignature() != null) {
1913                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1914                        item.setChecked(true);
1915                    } else {
1916                        updated = false;
1917                        activity.announcePgp(
1918                                conversation.getAccount(),
1919                                conversation,
1920                                null,
1921                                activity.onOpenPGPKeyPublished);
1922                    }
1923                } else {
1924                    activity.showInstallPgpDialog();
1925                    updated = false;
1926                }
1927                break;
1928            case R.id.encryption_choice_axolotl:
1929                Log.d(
1930                        Config.LOGTAG,
1931                        AxolotlService.getLogprefix(conversation.getAccount())
1932                                + "Enabled axolotl for Contact "
1933                                + conversation.getContact().getJid());
1934                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1935                item.setChecked(true);
1936                break;
1937            default:
1938                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1939                break;
1940        }
1941        if (updated) {
1942            activity.xmppConnectionService.updateConversation(conversation);
1943        }
1944        updateChatMsgHint();
1945        getActivity().invalidateOptionsMenu();
1946        activity.refreshUi();
1947    }
1948
1949    public void attachFile(final int attachmentChoice) {
1950        attachFile(attachmentChoice, true);
1951    }
1952
1953    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1954        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1955            if (!hasPermissions(
1956                    attachmentChoice,
1957                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1958                    Manifest.permission.RECORD_AUDIO)) {
1959                return;
1960            }
1961        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO
1962                || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1963            if (!hasPermissions(
1964                    attachmentChoice,
1965                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1966                    Manifest.permission.CAMERA)) {
1967                return;
1968            }
1969        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1970            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1971                return;
1972            }
1973        }
1974        if (updateRecentlyUsed) {
1975            storeRecentlyUsedQuickAction(attachmentChoice);
1976        }
1977        final int encryption = conversation.getNextEncryption();
1978        final int mode = conversation.getMode();
1979        if (encryption == Message.ENCRYPTION_PGP) {
1980            if (activity.hasPgp()) {
1981                if (mode == Conversation.MODE_SINGLE
1982                        && conversation.getContact().getPgpKeyId() != 0) {
1983                    activity.xmppConnectionService
1984                            .getPgpEngine()
1985                            .hasKey(
1986                                    conversation.getContact(),
1987                                    new UiCallback<Contact>() {
1988
1989                                        @Override
1990                                        public void userInputRequired(
1991                                                PendingIntent pi, Contact contact) {
1992                                            startPendingIntent(pi, attachmentChoice);
1993                                        }
1994
1995                                        @Override
1996                                        public void success(Contact contact) {
1997                                            invokeAttachFileIntent(attachmentChoice);
1998                                        }
1999
2000                                        @Override
2001                                        public void error(int error, Contact contact) {
2002                                            activity.replaceToast(getString(error));
2003                                        }
2004                                    });
2005                } else if (mode == Conversation.MODE_MULTI
2006                        && conversation.getMucOptions().pgpKeysInUse()) {
2007                    if (!conversation.getMucOptions().everybodyHasKeys()) {
2008                        Toast warning =
2009                                Toast.makeText(
2010                                        getActivity(),
2011                                        R.string.missing_public_keys,
2012                                        Toast.LENGTH_LONG);
2013                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2014                        warning.show();
2015                    }
2016                    invokeAttachFileIntent(attachmentChoice);
2017                } else {
2018                    showNoPGPKeyDialog(
2019                            false,
2020                            (dialog, which) -> {
2021                                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2022                                activity.xmppConnectionService.updateConversation(conversation);
2023                                invokeAttachFileIntent(attachmentChoice);
2024                            });
2025                }
2026            } else {
2027                activity.showInstallPgpDialog();
2028            }
2029        } else {
2030            invokeAttachFileIntent(attachmentChoice);
2031        }
2032    }
2033
2034    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
2035        try {
2036            activity.getPreferences()
2037                    .edit()
2038                    .putString(
2039                            RECENTLY_USED_QUICK_ACTION,
2040                            SendButtonAction.of(attachmentChoice).toString())
2041                    .apply();
2042        } catch (IllegalArgumentException e) {
2043            // just do not save
2044        }
2045    }
2046
2047    @Override
2048    public void onRequestPermissionsResult(
2049            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
2050        final PermissionUtils.PermissionResult permissionResult =
2051                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
2052        if (grantResults.length > 0) {
2053            if (allGranted(permissionResult.grantResults)) {
2054                switch (requestCode) {
2055                    case REQUEST_START_DOWNLOAD:
2056                        if (this.mPendingDownloadableMessage != null) {
2057                            startDownloadable(this.mPendingDownloadableMessage);
2058                        }
2059                        break;
2060                    case REQUEST_ADD_EDITOR_CONTENT:
2061                        if (this.mPendingEditorContent != null) {
2062                            attachEditorContentToConversation(this.mPendingEditorContent);
2063                        }
2064                        break;
2065                    case REQUEST_COMMIT_ATTACHMENTS:
2066                        commitAttachments();
2067                        break;
2068                    case REQUEST_START_AUDIO_CALL:
2069                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
2070                        break;
2071                    case REQUEST_START_VIDEO_CALL:
2072                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
2073                        break;
2074                    default:
2075                        attachFile(requestCode);
2076                        break;
2077                }
2078            } else {
2079                @StringRes int res;
2080                String firstDenied =
2081                        getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
2082                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
2083                    res = R.string.no_microphone_permission;
2084                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
2085                    res = R.string.no_camera_permission;
2086                } else {
2087                    res = R.string.no_storage_permission;
2088                }
2089                Toast.makeText(
2090                                getActivity(),
2091                                getString(res, getString(R.string.app_name)),
2092                                Toast.LENGTH_SHORT)
2093                        .show();
2094            }
2095        }
2096        if (writeGranted(grantResults, permissions)) {
2097            if (activity != null && activity.xmppConnectionService != null) {
2098                activity.xmppConnectionService.getBitmapCache().evictAll();
2099                activity.xmppConnectionService.getDrawableCache().evictAll();
2100                activity.xmppConnectionService.restartFileObserver();
2101            }
2102            refresh();
2103        }
2104    }
2105
2106    public void startDownloadable(Message message) {
2107        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2108            this.mPendingDownloadableMessage = message;
2109            return;
2110        }
2111        Transferable transferable = message.getTransferable();
2112        if (transferable != null) {
2113            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
2114                createNewConnection(message);
2115                return;
2116            }
2117            if (!transferable.start()) {
2118                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
2119                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
2120                        .show();
2121            }
2122        } else if (message.treatAsDownloadable()
2123                || message.hasFileOnRemoteHost()
2124                || MessageUtils.unInitiatedButKnownSize(message)) {
2125            createNewConnection(message);
2126        } else {
2127            Log.d(
2128                    Config.LOGTAG,
2129                    message.getConversation().getAccount() + ": unable to start downloadable");
2130        }
2131    }
2132
2133    private void createNewConnection(final Message message) {
2134        if (!activity.xmppConnectionService.hasInternetConnection()) {
2135            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
2136                    .show();
2137            return;
2138        }
2139        if (message.getOob() != null && message.getOob().getScheme().equalsIgnoreCase("cid")) {
2140            try {
2141                BobTransfer transfer = new BobTransfer.ForMessage(message, activity.xmppConnectionService);
2142                message.setTransferable(transfer);
2143                transfer.start();
2144            } catch (URISyntaxException e) {
2145                Log.d(Config.LOGTAG, "BobTransfer failed to parse URI");
2146            }
2147        } else {
2148            activity.xmppConnectionService
2149                    .getHttpConnectionManager()
2150                    .createNewDownloadConnection(message, true);
2151        }
2152    }
2153
2154    @SuppressLint("InflateParams")
2155    protected void clearHistoryDialog(final Conversation conversation) {
2156        final AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2157        builder.setTitle(getString(R.string.clear_conversation_history));
2158        final View dialogView =
2159                requireActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
2160        final CheckBox endConversationCheckBox =
2161                dialogView.findViewById(R.id.end_conversation_checkbox);
2162        builder.setView(dialogView);
2163        builder.setNegativeButton(getString(R.string.cancel), null);
2164        builder.setPositiveButton(
2165                getString(R.string.confirm),
2166                (dialog, which) -> {
2167                    this.activity.xmppConnectionService.clearConversationHistory(conversation);
2168                    if (endConversationCheckBox.isChecked()) {
2169                        this.activity.xmppConnectionService.archiveConversation(conversation);
2170                        this.activity.onConversationArchived(conversation);
2171                    } else {
2172                        activity.onConversationsListItemUpdated();
2173                        refresh();
2174                    }
2175                });
2176        builder.create().show();
2177    }
2178
2179    protected void muteConversationDialog(final Conversation conversation) {
2180        final AlertDialog.Builder builder = new AlertDialog.Builder(activity);
2181        builder.setTitle(R.string.disable_notifications);
2182        final int[] durations = activity.getResources().getIntArray(R.array.mute_options_durations);
2183        final CharSequence[] labels = new CharSequence[durations.length];
2184        for (int i = 0; i < durations.length; ++i) {
2185            if (durations[i] == -1) {
2186                labels[i] = activity.getString(R.string.until_further_notice);
2187            } else {
2188                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
2189            }
2190        }
2191        builder.setItems(
2192                labels,
2193                (dialog, which) -> {
2194                    final long till;
2195                    if (durations[which] == -1) {
2196                        till = Long.MAX_VALUE;
2197                    } else {
2198                        till = System.currentTimeMillis() + (durations[which] * 1000L);
2199                    }
2200                    conversation.setMutedTill(till);
2201                    activity.xmppConnectionService.updateConversation(conversation);
2202                    activity.onConversationsListItemUpdated();
2203                    refresh();
2204                    activity.invalidateOptionsMenu();
2205                });
2206        builder.create().show();
2207    }
2208
2209    private boolean hasPermissions(int requestCode, List<String> permissions) {
2210        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
2211            final List<String> missingPermissions = new ArrayList<>();
2212            for (String permission : permissions) {
2213                if (Config.ONLY_INTERNAL_STORAGE
2214                        && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2215                    continue;
2216                }
2217                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
2218                    missingPermissions.add(permission);
2219                }
2220            }
2221            if (missingPermissions.size() == 0) {
2222                return true;
2223            } else {
2224                requestPermissions(
2225                        missingPermissions.toArray(new String[0]),
2226                        requestCode);
2227                return false;
2228            }
2229        } else {
2230            return true;
2231        }
2232    }
2233
2234    private boolean hasPermissions(int requestCode, String... permissions) {
2235        return hasPermissions(requestCode, ImmutableList.copyOf(permissions));
2236    }
2237
2238    public void unMuteConversation(final Conversation conversation) {
2239        conversation.setMutedTill(0);
2240        this.activity.xmppConnectionService.updateConversation(conversation);
2241        this.activity.onConversationsListItemUpdated();
2242        refresh();
2243        this.activity.invalidateOptionsMenu();
2244    }
2245
2246    protected void invokeAttachFileIntent(final int attachmentChoice) {
2247        Intent intent = new Intent();
2248        boolean chooser = false;
2249        switch (attachmentChoice) {
2250            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
2251                intent.setAction(Intent.ACTION_GET_CONTENT);
2252                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2253                intent.setType("image/*");
2254                chooser = true;
2255                break;
2256            case ATTACHMENT_CHOICE_RECORD_VIDEO:
2257                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
2258                break;
2259            case ATTACHMENT_CHOICE_TAKE_PHOTO:
2260                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
2261                pendingTakePhotoUri.push(uri);
2262                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
2263                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
2264                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
2265                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
2266                break;
2267            case ATTACHMENT_CHOICE_CHOOSE_FILE:
2268                chooser = true;
2269                intent.setType("*/*");
2270                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2271                intent.addCategory(Intent.CATEGORY_OPENABLE);
2272                intent.setAction(Intent.ACTION_GET_CONTENT);
2273                break;
2274            case ATTACHMENT_CHOICE_RECORD_VOICE:
2275                intent = new Intent(getActivity(), RecordingActivity.class);
2276                break;
2277            case ATTACHMENT_CHOICE_LOCATION:
2278                intent = GeoHelper.getFetchIntent(activity);
2279                break;
2280        }
2281        final Context context = getActivity();
2282        if (context == null) {
2283            return;
2284        }
2285        try {
2286            if (chooser) {
2287                startActivityForResult(
2288                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
2289                        attachmentChoice);
2290            } else {
2291                startActivityForResult(intent, attachmentChoice);
2292            }
2293        } catch (final ActivityNotFoundException e) {
2294            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
2295        }
2296    }
2297
2298    @Override
2299    public void onResume() {
2300        super.onResume();
2301        binding.messagesView.post(this::fireReadEvent);
2302    }
2303
2304    private void fireReadEvent() {
2305        if (activity != null && this.conversation != null) {
2306            String uuid = getLastVisibleMessageUuid();
2307            if (uuid != null) {
2308                activity.onConversationRead(this.conversation, uuid);
2309            }
2310        }
2311    }
2312
2313    private void newThread() {
2314        Element thread = new Element("thread", "jabber:client");
2315        thread.setContent(UUID.randomUUID().toString());
2316        setThread(thread);
2317    }
2318
2319    private void updateThreadFromLastMessage() {
2320        if (this.conversation != null && !this.conversation.getUserSelectedThread() && TextUtils.isEmpty(binding.textinput.getText())) {
2321            Message message = getLastVisibleMessage();
2322            if (message == null) {
2323                newThread();
2324            } else {
2325                setThread(message.getThread());
2326            }
2327        }
2328    }
2329
2330    private String getLastVisibleMessageUuid() {
2331        Message message =  getLastVisibleMessage();
2332        return message == null ? null : message.getUuid();
2333    }
2334
2335    private Message getLastVisibleMessage() {
2336        if (binding == null) {
2337            return null;
2338        }
2339        synchronized (this.messageList) {
2340            int pos = binding.messagesView.getLastVisiblePosition();
2341            if (pos >= 0) {
2342                Message message = null;
2343                for (int i = pos; i >= 0; --i) {
2344                    try {
2345                        message = (Message) binding.messagesView.getItemAtPosition(i);
2346                    } catch (IndexOutOfBoundsException e) {
2347                        // should not happen if we synchronize properly. however if that fails we
2348                        // just gonna try item -1
2349                        continue;
2350                    }
2351                    if (message.getType() != Message.TYPE_STATUS) {
2352                        break;
2353                    }
2354                }
2355                if (message != null) {
2356                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
2357                        message = message.next();
2358                    }
2359                    return message;
2360                }
2361            }
2362        }
2363        return null;
2364    }
2365
2366    private void openWith(final Message message) {
2367        if (message.isGeoUri()) {
2368            GeoHelper.view(getActivity(), message);
2369        } else {
2370            final DownloadableFile file =
2371                    activity.xmppConnectionService.getFileBackend().getFile(message);
2372            ViewUtil.view(activity, file);
2373        }
2374    }
2375
2376    private void showErrorMessage(final Message message) {
2377        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2378        builder.setTitle(R.string.error_message);
2379        final String errorMessage = message.getErrorMessage();
2380        final String[] errorMessageParts =
2381                errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
2382        final String displayError;
2383        if (errorMessageParts.length == 2) {
2384            displayError = errorMessageParts[1];
2385        } else {
2386            displayError = errorMessage;
2387        }
2388        builder.setMessage(displayError);
2389        builder.setNegativeButton(
2390                R.string.copy_to_clipboard,
2391                (dialog, which) -> {
2392                    activity.copyTextToClipboard(displayError, R.string.error_message);
2393                    Toast.makeText(
2394                                    activity,
2395                                    R.string.error_message_copied_to_clipboard,
2396                                    Toast.LENGTH_SHORT)
2397                            .show();
2398                });
2399        builder.setPositiveButton(R.string.confirm, null);
2400        builder.create().show();
2401    }
2402
2403    public boolean onInlineImageLongClicked(Cid cid) {
2404        DownloadableFile f = activity.xmppConnectionService.getFileForCid(cid);
2405        if (f == null) return false;
2406
2407        saveAsSticker(f, null);
2408        return true;
2409    }
2410
2411    private void saveAsSticker(final Message m) {
2412        String existingName = m.getFileParams() != null && m.getFileParams().getName() != null ? m.getFileParams().getName() : "";
2413        existingName = existingName.lastIndexOf(".") == -1 ? existingName : existingName.substring(0, existingName.lastIndexOf("."));
2414        saveAsSticker(activity.xmppConnectionService.getFileBackend().getFile(m), existingName);
2415    }
2416
2417    private void saveAsSticker(final File file, final String name) {
2418        savingAsSticker = file;
2419
2420        Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
2421        intent.addCategory(Intent.CATEGORY_OPENABLE);
2422        intent.setType(MimeUtils.guessMimeTypeFromUri(activity, activity.xmppConnectionService.getFileBackend().getUriForFile(activity, file)));
2423        intent.putExtra(Intent.EXTRA_TITLE, name);
2424
2425        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2426        final String dir = p.getString("sticker_directory", "Stickers");
2427        if (dir.startsWith("content://")) {
2428            intent.putExtra("android.provider.extra.INITIAL_URI", Uri.parse(dir));
2429        } else {
2430            new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/" + dir + "/User Pack").mkdirs();
2431            Uri uri;
2432            if (Build.VERSION.SDK_INT >= 24) {
2433                Intent tmp = ((StorageManager) activity.getSystemService(Context.STORAGE_SERVICE)).getPrimaryStorageVolume().createOpenDocumentTreeIntent();
2434                uri = tmp.getParcelableExtra("android.provider.extra.INITIAL_URI");
2435                uri = Uri.parse(uri.toString().replace("/root/", "/document/") + "%3APictures%2F" + dir);
2436            } else {
2437                uri = Uri.parse("content://com.android.externalstorage.documents/document/primary%3APictures%2F" + dir);
2438            }
2439            intent.putExtra("android.provider.extra.INITIAL_URI", uri);
2440            intent.putExtra("android.content.extra.SHOW_ADVANCED", true);
2441        }
2442
2443        Toast.makeText(activity, "Choose a sticker pack to add this sticker to", Toast.LENGTH_SHORT).show();
2444        startActivityForResult(Intent.createChooser(intent, "Choose sticker pack"), REQUEST_SAVE_STICKER);
2445    }
2446
2447    private void deleteFile(final Message message) {
2448        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2449        builder.setNegativeButton(R.string.cancel, null);
2450        builder.setTitle(R.string.delete_file_dialog);
2451        builder.setMessage(R.string.delete_file_dialog_msg);
2452        builder.setPositiveButton(
2453                R.string.confirm,
2454                (dialog, which) -> {
2455                    if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
2456                        message.setDeleted(true);
2457                        activity.xmppConnectionService.evictPreview(activity.xmppConnectionService.getFileBackend().getFile(message));
2458                        activity.xmppConnectionService.updateMessage(message, false);
2459                        activity.onConversationsListItemUpdated();
2460                        refresh();
2461                    }
2462                });
2463        builder.create().show();
2464    }
2465
2466    private void resendMessage(final Message message) {
2467        if (message.isFileOrImage()) {
2468            if (!(message.getConversation() instanceof Conversation)) {
2469                return;
2470            }
2471            final Conversation conversation = (Conversation) message.getConversation();
2472            final DownloadableFile file =
2473                    activity.xmppConnectionService.getFileBackend().getFile(message);
2474            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
2475                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
2476                if (!message.hasFileOnRemoteHost()
2477                        && xmppConnection != null
2478                        && conversation.getMode() == Conversational.MODE_SINGLE
2479                        && !xmppConnection
2480                                .getFeatures()
2481                                .httpUpload(message.getFileParams().getSize())) {
2482                    activity.selectPresence(
2483                            conversation,
2484                            () -> {
2485                                message.setCounterpart(conversation.getNextCounterpart());
2486                                activity.xmppConnectionService.resendFailedMessages(message);
2487                                new Handler()
2488                                        .post(
2489                                                () -> {
2490                                                    int size = messageList.size();
2491                                                    this.binding.messagesView.setSelection(
2492                                                            size - 1);
2493                                                });
2494                            });
2495                    return;
2496                }
2497            } else if (!Compatibility.hasStoragePermission(getActivity())) {
2498                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
2499                return;
2500            } else {
2501                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
2502                message.setDeleted(true);
2503                activity.xmppConnectionService.updateMessage(message, false);
2504                activity.onConversationsListItemUpdated();
2505                refresh();
2506                return;
2507            }
2508        }
2509        activity.xmppConnectionService.resendFailedMessages(message);
2510        new Handler()
2511                .post(
2512                        () -> {
2513                            int size = messageList.size();
2514                            this.binding.messagesView.setSelection(size - 1);
2515                        });
2516    }
2517
2518    private void cancelTransmission(Message message) {
2519        Transferable transferable = message.getTransferable();
2520        if (transferable != null) {
2521            transferable.cancel();
2522        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
2523            activity.xmppConnectionService.markMessage(
2524                    message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
2525        }
2526    }
2527
2528    private void retryDecryption(Message message) {
2529        message.setEncryption(Message.ENCRYPTION_PGP);
2530        activity.onConversationsListItemUpdated();
2531        refresh();
2532        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
2533    }
2534
2535    public void privateMessageWith(final Jid counterpart) {
2536        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2537            activity.xmppConnectionService.sendChatState(conversation);
2538        }
2539        this.binding.textinput.setText("");
2540        this.conversation.setNextCounterpart(counterpart);
2541        updateChatMsgHint();
2542        updateSendButton();
2543        updateEditablity();
2544    }
2545
2546    private void correctMessage(Message message) {
2547        while (message.mergeable(message.next())) {
2548            message = message.next();
2549        }
2550        this.conversation.setCorrectingMessage(message);
2551        final Editable editable = binding.textinput.getText();
2552        this.conversation.setDraftMessage(editable.toString());
2553        this.binding.textinput.setText("");
2554        this.binding.textinput.append(message.getBody());
2555    }
2556
2557    private void highlightInConference(String nick) {
2558        final Editable editable = this.binding.textinput.getText();
2559        String oldString = editable.toString().trim();
2560        final int pos = this.binding.textinput.getSelectionStart();
2561        if (oldString.isEmpty() || pos == 0) {
2562            editable.insert(0, nick + ": ");
2563        } else {
2564            final char before = editable.charAt(pos - 1);
2565            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
2566            if (before == '\n') {
2567                editable.insert(pos, nick + ": ");
2568            } else {
2569                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
2570                    if (NickValidityChecker.check(
2571                            conversation,
2572                            Arrays.asList(
2573                                    editable.subSequence(0, pos - 2).toString().split(", ")))) {
2574                        editable.insert(pos - 2, ", " + nick);
2575                        return;
2576                    }
2577                }
2578                editable.insert(
2579                        pos,
2580                        (Character.isWhitespace(before) ? "" : " ")
2581                                + nick
2582                                + (Character.isWhitespace(after) ? "" : " "));
2583                if (Character.isWhitespace(after)) {
2584                    this.binding.textinput.setSelection(
2585                            this.binding.textinput.getSelectionStart() + 1);
2586                }
2587            }
2588        }
2589    }
2590
2591    @Override
2592    public void startActivityForResult(Intent intent, int requestCode) {
2593        final Activity activity = getActivity();
2594        if (activity instanceof ConversationsActivity) {
2595            ((ConversationsActivity) activity).clearPendingViewIntent();
2596        }
2597        super.startActivityForResult(intent, requestCode);
2598    }
2599
2600    @Override
2601    public void onSaveInstanceState(@NotNull Bundle outState) {
2602        super.onSaveInstanceState(outState);
2603        if (conversation != null) {
2604            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
2605            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
2606            final Uri uri = pendingTakePhotoUri.peek();
2607            if (uri != null) {
2608                outState.putString(STATE_PHOTO_URI, uri.toString());
2609            }
2610            final ScrollState scrollState = getScrollPosition();
2611            if (scrollState != null) {
2612                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
2613            }
2614            final ArrayList<Attachment> attachments =
2615                    mediaPreviewAdapter == null
2616                            ? new ArrayList<>()
2617                            : mediaPreviewAdapter.getAttachments();
2618            if (attachments.size() > 0) {
2619                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
2620            }
2621        }
2622    }
2623
2624    @Override
2625    public void onActivityCreated(Bundle savedInstanceState) {
2626        super.onActivityCreated(savedInstanceState);
2627        if (savedInstanceState == null) {
2628            return;
2629        }
2630        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
2631        ArrayList<Attachment> attachments =
2632                savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
2633        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
2634        if (uuid != null) {
2635            QuickLoader.set(uuid);
2636            this.pendingConversationsUuid.push(uuid);
2637            if (attachments != null && attachments.size() > 0) {
2638                this.pendingMediaPreviews.push(attachments);
2639            }
2640            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
2641            if (takePhotoUri != null) {
2642                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2643            }
2644            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2645        }
2646    }
2647
2648    @Override
2649    public void onStart() {
2650        super.onStart();
2651        if (this.reInitRequiredOnStart && this.conversation != null) {
2652            final Bundle extras = pendingExtras.pop();
2653            reInit(this.conversation, extras != null);
2654            if (extras != null) {
2655                processExtras(extras);
2656            }
2657        } else if (conversation == null
2658                && activity != null
2659                && activity.xmppConnectionService != null) {
2660            final String uuid = pendingConversationsUuid.pop();
2661            Log.d(
2662                    Config.LOGTAG,
2663                    "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid="
2664                            + uuid);
2665            if (uuid != null) {
2666                findAndReInitByUuidOrArchive(uuid);
2667            }
2668        }
2669    }
2670
2671    @Override
2672    public void onStop() {
2673        super.onStop();
2674        final Activity activity = getActivity();
2675        messageListAdapter.unregisterListenerInAudioPlayer();
2676        if (activity == null || !activity.isChangingConfigurations()) {
2677            hideSoftKeyboard(activity);
2678            messageListAdapter.stopAudioPlayer();
2679        }
2680        if (this.conversation != null) {
2681            final String msg = this.binding.textinput.getText().toString();
2682            storeNextMessage(msg);
2683            updateChatState(this.conversation, msg);
2684            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2685        }
2686        this.reInitRequiredOnStart = true;
2687    }
2688
2689    private void updateChatState(final Conversation conversation, final String msg) {
2690        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2691        Account.State status = conversation.getAccount().getStatus();
2692        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2693            activity.xmppConnectionService.sendChatState(conversation);
2694        }
2695    }
2696
2697    private void saveMessageDraftStopAudioPlayer() {
2698        final Conversation previousConversation = this.conversation;
2699        if (this.activity == null || this.binding == null || previousConversation == null) {
2700            return;
2701        }
2702        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2703        final String msg = this.binding.textinput.getText().toString();
2704        storeNextMessage(msg);
2705        updateChatState(this.conversation, msg);
2706        messageListAdapter.stopAudioPlayer();
2707        mediaPreviewAdapter.clearPreviews();
2708        toggleInputMethod();
2709    }
2710
2711    public void reInit(final Conversation conversation, final Bundle extras) {
2712        QuickLoader.set(conversation.getUuid());
2713        final boolean changedConversation = this.conversation != conversation;
2714        if (changedConversation) {
2715            this.saveMessageDraftStopAudioPlayer();
2716        }
2717        this.clearPending();
2718        if (this.reInit(conversation, extras != null)) {
2719            if (extras != null) {
2720                processExtras(extras);
2721            }
2722            this.reInitRequiredOnStart = false;
2723        } else {
2724            this.reInitRequiredOnStart = true;
2725            pendingExtras.push(extras);
2726        }
2727        resetUnreadMessagesCount();
2728    }
2729
2730    private void reInit(Conversation conversation) {
2731        reInit(conversation, false);
2732    }
2733
2734    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2735        if (conversation == null) {
2736            return false;
2737        }
2738        final Conversation originalConversation = this.conversation;
2739        this.conversation = conversation;
2740        // once we set the conversation all is good and it will automatically do the right thing in
2741        // onStart()
2742        if (this.activity == null || this.binding == null) {
2743            return false;
2744        }
2745
2746        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2747            activity.onConversationArchived(this.conversation);
2748            return false;
2749        }
2750
2751        setThread(conversation.getThread());
2752        setupReply(conversation.getReplyTo());
2753
2754        stopScrolling();
2755        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
2756
2757        if (this.conversation.isRead() && hasExtras) {
2758            Log.d(Config.LOGTAG, "trimming conversation");
2759            this.conversation.trim();
2760        }
2761
2762        setupIme();
2763
2764        final boolean scrolledToBottomAndNoPending =
2765                this.scrolledToBottom() && pendingScrollState.peek() == null;
2766
2767        this.binding.textSendButton.setContentDescription(
2768                activity.getString(R.string.send_message_to_x, conversation.getName()));
2769        this.binding.textinput.setKeyboardListener(null);
2770        this.binding.textinput.setText("");
2771        final boolean participating =
2772                conversation.getMode() == Conversational.MODE_SINGLE
2773                        || conversation.getMucOptions().participating();
2774        if (participating) {
2775            this.binding.textinput.append(this.conversation.getNextMessage());
2776        }
2777        this.binding.textinput.setKeyboardListener(this);
2778        messageListAdapter.updatePreferences();
2779        refresh(false);
2780        activity.invalidateOptionsMenu();
2781        this.conversation.messagesLoaded.set(true);
2782        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
2783
2784        if (hasExtras || scrolledToBottomAndNoPending) {
2785            resetUnreadMessagesCount();
2786            synchronized (this.messageList) {
2787                Log.d(Config.LOGTAG, "jump to first unread message");
2788                final Message first = conversation.getFirstUnreadMessage();
2789                final int bottom = Math.max(0, this.messageList.size() - 1);
2790                final int pos;
2791                final boolean jumpToBottom;
2792                if (first == null) {
2793                    pos = bottom;
2794                    jumpToBottom = true;
2795                } else {
2796                    int i = getIndexOf(first.getUuid(), this.messageList);
2797                    pos = i < 0 ? bottom : i;
2798                    jumpToBottom = false;
2799                }
2800                setSelection(pos, jumpToBottom);
2801            }
2802        }
2803
2804        this.binding.messagesView.post(this::fireReadEvent);
2805        // TODO if we only do this when this fragment is running on main it won't *bing* in tablet
2806        // layout which might be unnecessary since we can *see* it
2807        activity.xmppConnectionService
2808                .getNotificationService()
2809                .setOpenConversation(this.conversation);
2810
2811        if (commandAdapter != null && conversation != originalConversation) {
2812            originalConversation.setupViewPager(null, null);
2813            conversation.setupViewPager(binding.conversationViewPager, binding.tabLayout);
2814            refreshCommands();
2815        }
2816        if (commandAdapter == null && conversation != null) {
2817            conversation.setupViewPager(binding.conversationViewPager, binding.tabLayout);
2818            commandAdapter = new CommandAdapter((XmppActivity) getActivity());
2819            binding.commandsView.setAdapter(commandAdapter);
2820            binding.commandsView.setOnItemClickListener((parent, view, position, id) -> {
2821                final Element command = commandAdapter.getItem(position);
2822                activity.startCommand(conversation.getAccount(), command.getAttributeAsJid("jid"), command.getAttribute("node"));
2823            });
2824            refreshCommands();
2825        }
2826
2827        return true;
2828    }
2829
2830    public void refreshForNewCaps() {
2831        refreshCommands();
2832    }
2833
2834    protected void refreshCommands() {
2835        if (commandAdapter == null) return;
2836
2837        Jid commandJid = conversation.getContact().resourceWhichSupport(Namespace.COMMANDS);
2838        if (commandJid == null) {
2839            conversation.hideViewPager();
2840        } else {
2841            conversation.showViewPager();
2842            activity.xmppConnectionService.fetchCommands(conversation.getAccount(), commandJid, (a, iq) -> {
2843                if (activity == null) return;
2844
2845                activity.runOnUiThread(() -> {
2846                    if (iq.getType() == IqPacket.TYPE.RESULT) {
2847                        binding.commandsViewProgressbar.setVisibility(View.GONE);
2848                        commandAdapter.clear();
2849                        for (Element child : iq.query().getChildren()) {
2850                            if (!"item".equals(child.getName()) || !Namespace.DISCO_ITEMS.equals(child.getNamespace())) continue;
2851                            commandAdapter.add(child);
2852                        }
2853                    }
2854
2855                    if (commandAdapter.getCount() < 1) conversation.hideViewPager();
2856                });
2857            });
2858        }
2859    }
2860
2861    private void resetUnreadMessagesCount() {
2862        lastMessageUuid = null;
2863        hideUnreadMessagesCount();
2864    }
2865
2866    private void hideUnreadMessagesCount() {
2867        if (this.binding == null) {
2868            return;
2869        }
2870        this.binding.scrollToBottomButton.setEnabled(false);
2871        this.binding.scrollToBottomButton.hide();
2872        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2873    }
2874
2875    private void setSelection(int pos, boolean jumpToBottom) {
2876        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2877        this.binding.messagesView.post(
2878                () -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2879        this.binding.messagesView.post(this::fireReadEvent);
2880    }
2881
2882    private boolean scrolledToBottom() {
2883        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2884    }
2885
2886    private void processExtras(final Bundle extras) {
2887        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2888        final String text = extras.getString(Intent.EXTRA_TEXT);
2889        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2890        final String node = extras.getString(ConversationsActivity.EXTRA_NODE);
2891        final String postInitAction =
2892                extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2893        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2894        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2895        final boolean doNotAppend =
2896                extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2897        final String type = extras.getString(ConversationsActivity.EXTRA_TYPE);
2898        final List<Uri> uris = extractUris(extras);
2899        if (uris != null && uris.size() > 0) {
2900            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2901                mediaPreviewAdapter.addMediaPreviews(
2902                        Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2903            } else {
2904                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2905                mediaPreviewAdapter.addMediaPreviews(
2906                        Attachment.of(getActivity(), cleanedUris, type));
2907            }
2908            toggleInputMethod();
2909            return;
2910        }
2911        if (nick != null) {
2912            if (pm) {
2913                Jid jid = conversation.getJid();
2914                try {
2915                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2916                    privateMessageWith(next);
2917                } catch (final IllegalArgumentException ignored) {
2918                    // do nothing
2919                }
2920            } else {
2921                final MucOptions mucOptions = conversation.getMucOptions();
2922                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2923                    highlightInConference(nick);
2924                }
2925            }
2926        } else {
2927            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2928                mediaPreviewAdapter.addMediaPreviews(
2929                        Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2930                toggleInputMethod();
2931                return;
2932            } else if (text != null && asQuote) {
2933                quoteText(text);
2934            } else {
2935                appendText(text, doNotAppend);
2936            }
2937        }
2938        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2939            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2940            return;
2941        }
2942        if ("call".equals(postInitAction)) {
2943            checkPermissionAndTriggerAudioCall();
2944        }
2945        if ("message".equals(postInitAction)) {
2946            binding.conversationViewPager.post(() -> {
2947                binding.conversationViewPager.setCurrentItem(0);
2948            });
2949        }
2950        if ("command".equals(postInitAction)) {
2951            binding.conversationViewPager.post(() -> {
2952                PagerAdapter adapter = binding.conversationViewPager.getAdapter();
2953                if (adapter != null && adapter.getCount() > 1) {
2954                    binding.conversationViewPager.setCurrentItem(1);
2955                }
2956                final String jid = extras.getString(ConversationsActivity.EXTRA_JID);
2957                Jid commandJid = null;
2958                if (jid != null) {
2959                    try {
2960                        commandJid = Jid.of(jid);
2961                    } catch (final IllegalArgumentException e) { }
2962                }
2963                if (commandJid == null || !commandJid.isFullJid()) {
2964                    final Jid discoJid = conversation.getContact().resourceWhichSupport(Namespace.COMMANDS);
2965                    if (discoJid != null) commandJid = discoJid;
2966                }
2967                if (node != null && commandJid != null) {
2968                    conversation.startCommand(commandFor(commandJid, node), activity.xmppConnectionService);
2969                }
2970            });
2971            return;
2972        }
2973        final Message message =
2974                downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2975        if (message != null) {
2976            startDownloadable(message);
2977        }
2978    }
2979
2980    private Element commandFor(final Jid jid, final String node) {
2981        if (commandAdapter != null) {
2982            for (int i = 0; i < commandAdapter.getCount(); i++) {
2983                Element command = commandAdapter.getItem(i);
2984                final String commandNode = command.getAttribute("node");
2985                if (commandNode == null || !commandNode.equals(node)) continue;
2986
2987                final Jid commandJid = command.getAttributeAsJid("jid");
2988                if (commandJid != null && !commandJid.asBareJid().equals(jid.asBareJid())) continue;
2989
2990                return command;
2991            }
2992        }
2993
2994        return new Element("command", Namespace.COMMANDS).setAttribute("name", node).setAttribute("node", node).setAttribute("jid", jid);
2995    }
2996
2997    private List<Uri> extractUris(final Bundle extras) {
2998        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2999        if (uris != null) {
3000            return uris;
3001        }
3002        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
3003        if (uri != null) {
3004            return Collections.singletonList(uri);
3005        } else {
3006            return null;
3007        }
3008    }
3009
3010    private List<Uri> cleanUris(final List<Uri> uris) {
3011        final Iterator<Uri> iterator = uris.iterator();
3012        while (iterator.hasNext()) {
3013            final Uri uri = iterator.next();
3014            if (FileBackend.weOwnFile(uri)) {
3015                iterator.remove();
3016                Toast.makeText(
3017                                getActivity(),
3018                                R.string.security_violation_not_attaching_file,
3019                                Toast.LENGTH_SHORT)
3020                        .show();
3021            }
3022        }
3023        return uris;
3024    }
3025
3026    private boolean showBlockSubmenu(View view) {
3027        final Jid jid = conversation.getJid();
3028        final boolean showReject =
3029                !conversation.isWithStranger()
3030                        && conversation
3031                                .getContact()
3032                                .getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
3033        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
3034        popupMenu.inflate(R.menu.block);
3035        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
3036        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
3037        popupMenu.setOnMenuItemClickListener(
3038                menuItem -> {
3039                    Blockable blockable;
3040                    switch (menuItem.getItemId()) {
3041                        case R.id.reject:
3042                            activity.xmppConnectionService.stopPresenceUpdatesTo(
3043                                    conversation.getContact());
3044                            updateSnackBar(conversation);
3045                            return true;
3046                        case R.id.block_domain:
3047                            blockable =
3048                                    conversation
3049                                            .getAccount()
3050                                            .getRoster()
3051                                            .getContact(jid.getDomain());
3052                            break;
3053                        default:
3054                            blockable = conversation;
3055                    }
3056                    BlockContactDialog.show(activity, blockable);
3057                    return true;
3058                });
3059        popupMenu.show();
3060        return true;
3061    }
3062
3063    private void updateSnackBar(final Conversation conversation) {
3064        final Account account = conversation.getAccount();
3065        final XmppConnection connection = account.getXmppConnection();
3066        final int mode = conversation.getMode();
3067        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
3068        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
3069            return;
3070        }
3071        if (account.getStatus() == Account.State.DISABLED) {
3072            showSnackbar(
3073                    R.string.this_account_is_disabled,
3074                    R.string.enable,
3075                    this.mEnableAccountListener);
3076        } else if (conversation.isBlocked()) {
3077            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
3078        } else if (contact != null
3079                && !contact.showInRoster()
3080                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
3081            showSnackbar(
3082                    R.string.contact_added_you,
3083                    R.string.add_back,
3084                    this.mAddBackClickListener,
3085                    this.mLongPressBlockListener);
3086        } else if (contact != null
3087                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
3088            showSnackbar(
3089                    R.string.contact_asks_for_presence_subscription,
3090                    R.string.allow,
3091                    this.mAllowPresenceSubscription,
3092                    this.mLongPressBlockListener);
3093        } else if (mode == Conversation.MODE_MULTI
3094                && !conversation.getMucOptions().online()
3095                && account.getStatus() == Account.State.ONLINE) {
3096            switch (conversation.getMucOptions().getError()) {
3097                case NICK_IN_USE:
3098                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
3099                    break;
3100                case NO_RESPONSE:
3101                    showSnackbar(R.string.joining_conference, 0, null);
3102                    break;
3103                case SERVER_NOT_FOUND:
3104                    if (conversation.receivedMessagesCount() > 0) {
3105                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
3106                    } else {
3107                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
3108                    }
3109                    break;
3110                case REMOTE_SERVER_TIMEOUT:
3111                    if (conversation.receivedMessagesCount() > 0) {
3112                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
3113                    } else {
3114                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
3115                    }
3116                    break;
3117                case PASSWORD_REQUIRED:
3118                    showSnackbar(
3119                            R.string.conference_requires_password,
3120                            R.string.enter_password,
3121                            enterPassword);
3122                    break;
3123                case BANNED:
3124                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
3125                    break;
3126                case MEMBERS_ONLY:
3127                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
3128                    break;
3129                case RESOURCE_CONSTRAINT:
3130                    showSnackbar(
3131                            R.string.conference_resource_constraint, R.string.try_again, joinMuc);
3132                    break;
3133                case KICKED:
3134                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
3135                    break;
3136                case TECHNICAL_PROBLEMS:
3137                    showSnackbar(R.string.conference_technical_problems, R.string.try_again, joinMuc);
3138                    break;
3139                case UNKNOWN:
3140                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
3141                    break;
3142                case INVALID_NICK:
3143                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
3144                case SHUTDOWN:
3145                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
3146                    break;
3147                case DESTROYED:
3148                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
3149                    break;
3150                case NON_ANONYMOUS:
3151                    showSnackbar(
3152                            R.string.group_chat_will_make_your_jabber_id_public,
3153                            R.string.join,
3154                            acceptJoin);
3155                    break;
3156                default:
3157                    hideSnackbar();
3158                    break;
3159            }
3160        } else if (account.hasPendingPgpIntent(conversation)) {
3161            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
3162        } else if (connection != null
3163                && connection.getFeatures().blocking()
3164                && conversation.countMessages() != 0
3165                && !conversation.isBlocked()
3166                && conversation.isWithStranger()) {
3167            showSnackbar(
3168                    R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
3169        } else {
3170            hideSnackbar();
3171        }
3172    }
3173
3174    @Override
3175    public void refresh() {
3176        if (this.binding == null) {
3177            Log.d(
3178                    Config.LOGTAG,
3179                    "ConversationFragment.refresh() skipped updated because view binding was null");
3180            return;
3181        }
3182        if (this.conversation != null
3183                && this.activity != null
3184                && this.activity.xmppConnectionService != null) {
3185            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
3186                activity.onConversationArchived(this.conversation);
3187                return;
3188            }
3189        }
3190        this.refresh(true);
3191    }
3192
3193    private void refresh(boolean notifyConversationRead) {
3194        synchronized (this.messageList) {
3195            if (this.conversation != null) {
3196                conversation.populateWithMessages(this.messageList);
3197                updateSnackBar(conversation);
3198                updateStatusMessages();
3199                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
3200                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
3201                    binding.unreadCountCustomView.setUnreadCount(
3202                            conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
3203                }
3204                this.messageListAdapter.notifyDataSetChanged();
3205                updateChatMsgHint();
3206                if (notifyConversationRead && activity != null) {
3207                    binding.messagesView.post(this::fireReadEvent);
3208                }
3209                updateSendButton();
3210                updateEditablity();
3211            }
3212        }
3213    }
3214
3215    protected void messageSent() {
3216        mSendingPgpMessage.set(false);
3217        this.binding.textinput.setText("");
3218        if (conversation.setCorrectingMessage(null)) {
3219            this.binding.textinput.append(conversation.getDraftMessage());
3220            conversation.setDraftMessage(null);
3221        }
3222        storeNextMessage();
3223        updateChatMsgHint();
3224        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
3225        final boolean prefScrollToBottom =
3226                p.getBoolean(
3227                        "scroll_to_bottom",
3228                        activity.getResources().getBoolean(R.bool.scroll_to_bottom));
3229        if (prefScrollToBottom || scrolledToBottom()) {
3230            new Handler()
3231                    .post(
3232                            () -> {
3233                                int size = messageList.size();
3234                                this.binding.messagesView.setSelection(size - 1);
3235                            });
3236        }
3237    }
3238
3239    private boolean storeNextMessage() {
3240        return storeNextMessage(this.binding.textinput.getText().toString());
3241    }
3242
3243    private boolean storeNextMessage(String msg) {
3244        final boolean participating =
3245                conversation.getMode() == Conversational.MODE_SINGLE
3246                        || conversation.getMucOptions().participating();
3247        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED
3248                && participating
3249                && this.conversation.setNextMessage(msg)) {
3250            this.activity.xmppConnectionService.updateConversation(this.conversation);
3251            return true;
3252        }
3253        return false;
3254    }
3255
3256    public void doneSendingPgpMessage() {
3257        mSendingPgpMessage.set(false);
3258    }
3259
3260    public long getMaxHttpUploadSize(Conversation conversation) {
3261        final XmppConnection connection = conversation.getAccount().getXmppConnection();
3262        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
3263    }
3264
3265    private void updateEditablity() {
3266        boolean canWrite =
3267                this.conversation.getMode() == Conversation.MODE_SINGLE
3268                        || this.conversation.getMucOptions().participating()
3269                        || this.conversation.getNextCounterpart() != null;
3270        this.binding.textinput.setFocusable(canWrite);
3271        this.binding.textinput.setFocusableInTouchMode(canWrite);
3272        this.binding.textSendButton.setEnabled(canWrite);
3273        this.binding.textinput.setCursorVisible(canWrite);
3274        this.binding.textinput.setEnabled(canWrite);
3275    }
3276
3277    public void updateSendButton() {
3278        boolean hasAttachments =
3279                mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
3280        final Conversation c = this.conversation;
3281        final Presence.Status status;
3282        final String text =
3283                this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
3284        final SendButtonAction action;
3285        if (hasAttachments) {
3286            action = SendButtonAction.TEXT;
3287        } else {
3288            action = SendButtonTool.getAction(getActivity(), c, text);
3289        }
3290        if (c.getAccount().getStatus() == Account.State.ONLINE) {
3291            if (activity != null
3292                    && activity.xmppConnectionService != null
3293                    && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
3294                status = Presence.Status.OFFLINE;
3295            } else if (c.getMode() == Conversation.MODE_SINGLE) {
3296                status = c.getContact().getShownStatus();
3297            } else {
3298                status =
3299                        c.getMucOptions().online()
3300                                ? Presence.Status.ONLINE
3301                                : Presence.Status.OFFLINE;
3302            }
3303        } else {
3304            status = Presence.Status.OFFLINE;
3305        }
3306        this.binding.textSendButton.setTag(action);
3307        final Activity activity = getActivity();
3308        if (activity != null) {
3309            this.binding.textSendButton.setImageResource(
3310                    SendButtonTool.getSendButtonImageResource(activity, action, status));
3311        }
3312
3313        ViewGroup.LayoutParams params = binding.threadIdenticonLayout.getLayoutParams();
3314        if (identiconWidth < 0) identiconWidth = params.width;
3315        if (hasAttachments || binding.textinput.getText().length() > 0) {
3316            binding.conversationViewPager.setCurrentItem(0);
3317            params.width = conversation.getThread() == null ? 0 : identiconWidth;
3318        } else {
3319            params.width = identiconWidth;
3320        }
3321        binding.threadIdenticonLayout.setLayoutParams(params);
3322    }
3323
3324    protected void updateStatusMessages() {
3325        DateSeparator.addAll(this.messageList);
3326        if (showLoadMoreMessages(conversation)) {
3327            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
3328        }
3329        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3330            ChatState state = conversation.getIncomingChatState();
3331            if (state == ChatState.COMPOSING) {
3332                this.messageList.add(
3333                        Message.createStatusMessage(
3334                                conversation,
3335                                getString(R.string.contact_is_typing, conversation.getName())));
3336            } else if (state == ChatState.PAUSED) {
3337                this.messageList.add(
3338                        Message.createStatusMessage(
3339                                conversation,
3340                                getString(
3341                                        R.string.contact_has_stopped_typing,
3342                                        conversation.getName())));
3343            } else {
3344                for (int i = this.messageList.size() - 1; i >= 0; --i) {
3345                    final Message message = this.messageList.get(i);
3346                    if (message.getType() != Message.TYPE_STATUS) {
3347                        if (message.getStatus() == Message.STATUS_RECEIVED) {
3348                            return;
3349                        } else {
3350                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
3351                                this.messageList.add(
3352                                        i + 1,
3353                                        Message.createStatusMessage(
3354                                                conversation,
3355                                                getString(
3356                                                        R.string.contact_has_read_up_to_this_point,
3357                                                        conversation.getName())));
3358                                return;
3359                            }
3360                        }
3361                    }
3362                }
3363            }
3364        } else {
3365            final MucOptions mucOptions = conversation.getMucOptions();
3366            final List<MucOptions.User> allUsers = mucOptions.getUsers();
3367            final Set<ReadByMarker> addedMarkers = new HashSet<>();
3368            ChatState state = ChatState.COMPOSING;
3369            List<MucOptions.User> users =
3370                    conversation.getMucOptions().getUsersWithChatState(state, 5);
3371            if (users.size() == 0) {
3372                state = ChatState.PAUSED;
3373                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
3374            }
3375            if (mucOptions.isPrivateAndNonAnonymous()) {
3376                for (int i = this.messageList.size() - 1; i >= 0; --i) {
3377                    final Set<ReadByMarker> markersForMessage =
3378                            messageList.get(i).getReadByMarkers();
3379                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
3380                    for (ReadByMarker marker : markersForMessage) {
3381                        if (!ReadByMarker.contains(marker, addedMarkers)) {
3382                            addedMarkers.add(
3383                                    marker); // may be put outside this condition. set should do
3384                                             // dedup anyway
3385                            MucOptions.User user = mucOptions.findUser(marker);
3386                            if (user != null && !users.contains(user)) {
3387                                shownMarkers.add(user);
3388                            }
3389                        }
3390                    }
3391                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
3392                    final Message statusMessage;
3393                    final int size = shownMarkers.size();
3394                    if (size > 1) {
3395                        final String body;
3396                        if (size <= 4) {
3397                            body =
3398                                    getString(
3399                                            R.string.contacts_have_read_up_to_this_point,
3400                                            UIHelper.concatNames(shownMarkers));
3401                        } else if (ReadByMarker.allUsersRepresented(
3402                                allUsers, markersForMessage, markerForSender)) {
3403                            body = getString(R.string.everyone_has_read_up_to_this_point);
3404                        } else {
3405                            body =
3406                                    getString(
3407                                            R.string.contacts_and_n_more_have_read_up_to_this_point,
3408                                            UIHelper.concatNames(shownMarkers, 3),
3409                                            size - 3);
3410                        }
3411                        statusMessage = Message.createStatusMessage(conversation, body);
3412                        statusMessage.setCounterparts(shownMarkers);
3413                    } else if (size == 1) {
3414                        statusMessage =
3415                                Message.createStatusMessage(
3416                                        conversation,
3417                                        getString(
3418                                                R.string.contact_has_read_up_to_this_point,
3419                                                UIHelper.getDisplayName(shownMarkers.get(0))));
3420                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
3421                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
3422                    } else {
3423                        statusMessage = null;
3424                    }
3425                    if (statusMessage != null) {
3426                        this.messageList.add(i + 1, statusMessage);
3427                    }
3428                    addedMarkers.add(markerForSender);
3429                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
3430                        break;
3431                    }
3432                }
3433            }
3434            if (users.size() > 0) {
3435                Message statusMessage;
3436                if (users.size() == 1) {
3437                    MucOptions.User user = users.get(0);
3438                    int id =
3439                            state == ChatState.COMPOSING
3440                                    ? R.string.contact_is_typing
3441                                    : R.string.contact_has_stopped_typing;
3442                    statusMessage =
3443                            Message.createStatusMessage(
3444                                    conversation, getString(id, UIHelper.getDisplayName(user)));
3445                    statusMessage.setTrueCounterpart(user.getRealJid());
3446                    statusMessage.setCounterpart(user.getFullJid());
3447                } else {
3448                    int id =
3449                            state == ChatState.COMPOSING
3450                                    ? R.string.contacts_are_typing
3451                                    : R.string.contacts_have_stopped_typing;
3452                    statusMessage =
3453                            Message.createStatusMessage(
3454                                    conversation, getString(id, UIHelper.concatNames(users)));
3455                    statusMessage.setCounterparts(users);
3456                }
3457                this.messageList.add(statusMessage);
3458            }
3459        }
3460    }
3461
3462    private void stopScrolling() {
3463        long now = SystemClock.uptimeMillis();
3464        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
3465        binding.messagesView.dispatchTouchEvent(cancel);
3466    }
3467
3468    private boolean showLoadMoreMessages(final Conversation c) {
3469        if (activity == null || activity.xmppConnectionService == null) {
3470            return false;
3471        }
3472        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
3473        final MessageArchiveService service =
3474                activity.xmppConnectionService.getMessageArchiveService();
3475        return mam
3476                && (c.getLastClearHistory().getTimestamp() != 0
3477                        || (c.countMessages() == 0
3478                                && c.messagesLoaded.get()
3479                                && c.hasMessagesLeftOnServer()
3480                                && !service.queryInProgress(c)));
3481    }
3482
3483    private boolean hasMamSupport(final Conversation c) {
3484        if (c.getMode() == Conversation.MODE_SINGLE) {
3485            final XmppConnection connection = c.getAccount().getXmppConnection();
3486            return connection != null && connection.getFeatures().mam();
3487        } else {
3488            return c.getMucOptions().mamSupport();
3489        }
3490    }
3491
3492    protected void showSnackbar(
3493            final int message, final int action, final OnClickListener clickListener) {
3494        showSnackbar(message, action, clickListener, null);
3495    }
3496
3497    protected void showSnackbar(
3498            final int message,
3499            final int action,
3500            final OnClickListener clickListener,
3501            final View.OnLongClickListener longClickListener) {
3502        this.binding.snackbar.setVisibility(View.VISIBLE);
3503        this.binding.snackbar.setOnClickListener(null);
3504        this.binding.snackbarMessage.setText(message);
3505        this.binding.snackbarMessage.setOnClickListener(null);
3506        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
3507        if (action != 0) {
3508            this.binding.snackbarAction.setText(action);
3509        }
3510        this.binding.snackbarAction.setOnClickListener(clickListener);
3511        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
3512    }
3513
3514    protected void hideSnackbar() {
3515        this.binding.snackbar.setVisibility(View.GONE);
3516    }
3517
3518    protected void sendMessage(Message message) {
3519        activity.xmppConnectionService.sendMessage(message);
3520        messageSent();
3521    }
3522
3523    protected void sendPgpMessage(final Message message) {
3524        final XmppConnectionService xmppService = activity.xmppConnectionService;
3525        final Contact contact = message.getConversation().getContact();
3526        if (!activity.hasPgp()) {
3527            activity.showInstallPgpDialog();
3528            return;
3529        }
3530        if (conversation.getAccount().getPgpSignature() == null) {
3531            activity.announcePgp(
3532                    conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
3533            return;
3534        }
3535        if (!mSendingPgpMessage.compareAndSet(false, true)) {
3536            Log.d(Config.LOGTAG, "sending pgp message already in progress");
3537        }
3538        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3539            if (contact.getPgpKeyId() != 0) {
3540                xmppService
3541                        .getPgpEngine()
3542                        .hasKey(
3543                                contact,
3544                                new UiCallback<Contact>() {
3545
3546                                    @Override
3547                                    public void userInputRequired(
3548                                            PendingIntent pi, Contact contact) {
3549                                        startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
3550                                    }
3551
3552                                    @Override
3553                                    public void success(Contact contact) {
3554                                        encryptTextMessage(message);
3555                                    }
3556
3557                                    @Override
3558                                    public void error(int error, Contact contact) {
3559                                        activity.runOnUiThread(
3560                                                () ->
3561                                                        Toast.makeText(
3562                                                                        activity,
3563                                                                        R.string
3564                                                                                .unable_to_connect_to_keychain,
3565                                                                        Toast.LENGTH_SHORT)
3566                                                                .show());
3567                                        mSendingPgpMessage.set(false);
3568                                    }
3569                                });
3570
3571            } else {
3572                showNoPGPKeyDialog(
3573                        false,
3574                        (dialog, which) -> {
3575                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3576                            xmppService.updateConversation(conversation);
3577                            message.setEncryption(Message.ENCRYPTION_NONE);
3578                            xmppService.sendMessage(message);
3579                            messageSent();
3580                        });
3581            }
3582        } else {
3583            if (conversation.getMucOptions().pgpKeysInUse()) {
3584                if (!conversation.getMucOptions().everybodyHasKeys()) {
3585                    Toast warning =
3586                            Toast.makeText(
3587                                    getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
3588                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
3589                    warning.show();
3590                }
3591                encryptTextMessage(message);
3592            } else {
3593                showNoPGPKeyDialog(
3594                        true,
3595                        (dialog, which) -> {
3596                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3597                            message.setEncryption(Message.ENCRYPTION_NONE);
3598                            xmppService.updateConversation(conversation);
3599                            xmppService.sendMessage(message);
3600                            messageSent();
3601                        });
3602            }
3603        }
3604    }
3605
3606    public void encryptTextMessage(Message message) {
3607        activity.xmppConnectionService
3608                .getPgpEngine()
3609                .encrypt(
3610                        message,
3611                        new UiCallback<Message>() {
3612
3613                            @Override
3614                            public void userInputRequired(PendingIntent pi, Message message) {
3615                                startPendingIntent(pi, REQUEST_SEND_MESSAGE);
3616                            }
3617
3618                            @Override
3619                            public void success(Message message) {
3620                                // TODO the following two call can be made before the callback
3621                                getActivity().runOnUiThread(() -> messageSent());
3622                            }
3623
3624                            @Override
3625                            public void error(final int error, Message message) {
3626                                getActivity()
3627                                        .runOnUiThread(
3628                                                () -> {
3629                                                    doneSendingPgpMessage();
3630                                                    Toast.makeText(
3631                                                                    getActivity(),
3632                                                                    error == 0
3633                                                                            ? R.string
3634                                                                                    .unable_to_connect_to_keychain
3635                                                                            : error,
3636                                                                    Toast.LENGTH_SHORT)
3637                                                            .show();
3638                                                });
3639                            }
3640                        });
3641    }
3642
3643    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
3644        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
3645        builder.setIconAttribute(android.R.attr.alertDialogIcon);
3646        if (plural) {
3647            builder.setTitle(getString(R.string.no_pgp_keys));
3648            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
3649        } else {
3650            builder.setTitle(getString(R.string.no_pgp_key));
3651            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
3652        }
3653        builder.setNegativeButton(getString(R.string.cancel), null);
3654        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
3655        builder.create().show();
3656    }
3657
3658    public void appendText(String text, final boolean doNotAppend) {
3659        if (text == null) {
3660            return;
3661        }
3662        final Editable editable = this.binding.textinput.getText();
3663        String previous = editable == null ? "" : editable.toString();
3664        if (doNotAppend && !TextUtils.isEmpty(previous)) {
3665            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG)
3666                    .show();
3667            return;
3668        }
3669        if (UIHelper.isLastLineQuote(previous)) {
3670            text = '\n' + text;
3671        } else if (previous.length() != 0
3672                && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
3673            text = " " + text;
3674        }
3675        this.binding.textinput.append(text);
3676    }
3677
3678    @Override
3679    public boolean onEnterPressed(final boolean isCtrlPressed) {
3680        if (isCtrlPressed || enterIsSend()) {
3681            sendMessage();
3682            return true;
3683        }
3684        return false;
3685    }
3686
3687    private boolean enterIsSend() {
3688        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
3689        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
3690    }
3691
3692    public boolean onArrowUpCtrlPressed() {
3693        final Message lastEditableMessage =
3694                conversation == null ? null : conversation.getLastEditableMessage();
3695        if (lastEditableMessage != null) {
3696            correctMessage(lastEditableMessage);
3697            return true;
3698        } else {
3699            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG)
3700                    .show();
3701            return false;
3702        }
3703    }
3704
3705    @Override
3706    public void onTypingStarted() {
3707        final XmppConnectionService service =
3708                activity == null ? null : activity.xmppConnectionService;
3709        if (service == null) {
3710            return;
3711        }
3712        final Account.State status = conversation.getAccount().getStatus();
3713        if (status == Account.State.ONLINE
3714                && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
3715            service.sendChatState(conversation);
3716        }
3717        runOnUiThread(this::updateSendButton);
3718    }
3719
3720    @Override
3721    public void onTypingStopped() {
3722        final XmppConnectionService service =
3723                activity == null ? null : activity.xmppConnectionService;
3724        if (service == null) {
3725            return;
3726        }
3727        final Account.State status = conversation.getAccount().getStatus();
3728        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
3729            service.sendChatState(conversation);
3730        }
3731    }
3732
3733    @Override
3734    public void onTextDeleted() {
3735        final XmppConnectionService service =
3736                activity == null ? null : activity.xmppConnectionService;
3737        if (service == null) {
3738            return;
3739        }
3740        final Account.State status = conversation.getAccount().getStatus();
3741        if (status == Account.State.ONLINE
3742                && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
3743            service.sendChatState(conversation);
3744        }
3745        if (storeNextMessage()) {
3746            runOnUiThread(
3747                    () -> {
3748                        if (activity == null) {
3749                            return;
3750                        }
3751                        activity.onConversationsListItemUpdated();
3752                    });
3753        }
3754        runOnUiThread(this::updateSendButton);
3755    }
3756
3757    @Override
3758    public void onTextChanged() {
3759        if (conversation != null && conversation.getCorrectingMessage() != null) {
3760            runOnUiThread(this::updateSendButton);
3761        }
3762    }
3763
3764    @Override
3765    public boolean onTabPressed(boolean repeated) {
3766        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
3767            return false;
3768        }
3769        if (repeated) {
3770            completionIndex++;
3771        } else {
3772            lastCompletionLength = 0;
3773            completionIndex = 0;
3774            final String content = this.binding.textinput.getText().toString();
3775            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
3776            int start =
3777                    lastCompletionCursor > 0
3778                            ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1
3779                            : 0;
3780            firstWord = start == 0;
3781            incomplete = content.substring(start, lastCompletionCursor);
3782        }
3783        List<String> completions = new ArrayList<>();
3784        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
3785            String name = user.getName();
3786            if (name != null && name.startsWith(incomplete)) {
3787                completions.add(name + (firstWord ? ": " : " "));
3788            }
3789        }
3790        Collections.sort(completions);
3791        if (completions.size() > completionIndex) {
3792            String completion = completions.get(completionIndex).substring(incomplete.length());
3793            this.binding
3794                    .textinput
3795                    .getEditableText()
3796                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3797            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
3798            lastCompletionLength = completion.length();
3799        } else {
3800            completionIndex = -1;
3801            this.binding
3802                    .textinput
3803                    .getEditableText()
3804                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3805            lastCompletionLength = 0;
3806        }
3807        return true;
3808    }
3809
3810    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
3811        try {
3812            getActivity()
3813                    .startIntentSenderForResult(
3814                            pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
3815        } catch (final SendIntentException ignored) {
3816        }
3817    }
3818
3819    @Override
3820    public void onBackendConnected() {
3821        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
3822        String uuid = pendingConversationsUuid.pop();
3823        if (uuid != null) {
3824            if (!findAndReInitByUuidOrArchive(uuid)) {
3825                return;
3826            }
3827        } else {
3828            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
3829                clearPending();
3830                activity.onConversationArchived(conversation);
3831                return;
3832            }
3833        }
3834        ActivityResult activityResult = postponedActivityResult.pop();
3835        if (activityResult != null) {
3836            handleActivityResult(activityResult);
3837        }
3838        clearPending();
3839    }
3840
3841    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
3842        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
3843        if (conversation == null) {
3844            clearPending();
3845            activity.onConversationArchived(null);
3846            return false;
3847        }
3848        reInit(conversation);
3849        ScrollState scrollState = pendingScrollState.pop();
3850        String lastMessageUuid = pendingLastMessageUuid.pop();
3851        List<Attachment> attachments = pendingMediaPreviews.pop();
3852        if (scrollState != null) {
3853            setScrollPosition(scrollState, lastMessageUuid);
3854        }
3855        if (attachments != null && attachments.size() > 0) {
3856            Log.d(Config.LOGTAG, "had attachments on restore");
3857            mediaPreviewAdapter.addMediaPreviews(attachments);
3858            toggleInputMethod();
3859        }
3860        return true;
3861    }
3862
3863    private void clearPending() {
3864        if (postponedActivityResult.clear()) {
3865            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
3866            if (pendingTakePhotoUri.clear()) {
3867                Log.e(Config.LOGTAG, "cleared pending photo uri");
3868            }
3869        }
3870        if (pendingScrollState.clear()) {
3871            Log.e(Config.LOGTAG, "cleared scroll state");
3872        }
3873        if (pendingConversationsUuid.clear()) {
3874            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
3875        }
3876        if (pendingMediaPreviews.clear()) {
3877            Log.e(Config.LOGTAG, "cleared pending media previews");
3878        }
3879    }
3880
3881    public Conversation getConversation() {
3882        return conversation;
3883    }
3884
3885    @Override
3886    public void onContactPictureLongClicked(View v, final Message message) {
3887        final String fingerprint;
3888        if (message.getEncryption() == Message.ENCRYPTION_PGP
3889                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3890            fingerprint = "pgp";
3891        } else {
3892            fingerprint = message.getFingerprint();
3893        }
3894        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
3895        final Contact contact = message.getContact();
3896        if (message.getStatus() <= Message.STATUS_RECEIVED
3897                && (contact == null || !contact.isSelf())) {
3898            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
3899                final Jid cp = message.getCounterpart();
3900                if (cp == null || cp.isBareJid()) {
3901                    return;
3902                }
3903                final Jid tcp = message.getTrueCounterpart();
3904                final User userByRealJid =
3905                        tcp != null
3906                                ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp)
3907                                : null;
3908                final User user =
3909                        userByRealJid != null
3910                                ? userByRealJid
3911                                : conversation.getMucOptions().findUserByFullJid(cp);
3912                popupMenu.inflate(R.menu.muc_details_context);
3913                final Menu menu = popupMenu.getMenu();
3914                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(
3915                        activity, menu, conversation, user);
3916                popupMenu.setOnMenuItemClickListener(
3917                        menuItem ->
3918                                MucDetailsContextMenuHelper.onContextItemSelected(
3919                                        menuItem, user, activity, fingerprint));
3920            } else {
3921                popupMenu.inflate(R.menu.one_on_one_context);
3922                popupMenu.setOnMenuItemClickListener(
3923                        item -> {
3924                            switch (item.getItemId()) {
3925                                case R.id.action_contact_details:
3926                                    activity.switchToContactDetails(
3927                                            message.getContact(), fingerprint);
3928                                    break;
3929                                case R.id.action_show_qr_code:
3930                                    activity.showQrCode(
3931                                            "xmpp:"
3932                                                    + message.getContact()
3933                                                            .getJid()
3934                                                            .asBareJid()
3935                                                            .toEscapedString());
3936                                    break;
3937                            }
3938                            return true;
3939                        });
3940            }
3941        } else {
3942            popupMenu.inflate(R.menu.account_context);
3943            final Menu menu = popupMenu.getMenu();
3944            menu.findItem(R.id.action_manage_accounts)
3945                    .setVisible(QuickConversationsService.isConversations());
3946            popupMenu.setOnMenuItemClickListener(
3947                    item -> {
3948                        final XmppActivity activity = this.activity;
3949                        if (activity == null) {
3950                            Log.e(Config.LOGTAG, "Unable to perform action. no context provided");
3951                            return true;
3952                        }
3953                        switch (item.getItemId()) {
3954                            case R.id.action_show_qr_code:
3955                                activity.showQrCode(conversation.getAccount().getShareableUri());
3956                                break;
3957                            case R.id.action_account_details:
3958                                activity.switchToAccount(
3959                                        message.getConversation().getAccount(), fingerprint);
3960                                break;
3961                            case R.id.action_manage_accounts:
3962                                AccountUtils.launchManageAccounts(activity);
3963                                break;
3964                        }
3965                        return true;
3966                    });
3967        }
3968        popupMenu.show();
3969    }
3970
3971    @Override
3972    public void onContactPictureClicked(Message message) {
3973        setThread(message.getThread());
3974        conversation.setUserSelectedThread(true);
3975
3976        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3977        if (received) {
3978            if (message.getConversation() instanceof Conversation
3979                    && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3980                Jid tcp = message.getTrueCounterpart();
3981                Jid user = message.getCounterpart();
3982                if (user != null && !user.isBareJid()) {
3983                    final MucOptions mucOptions =
3984                            ((Conversation) message.getConversation()).getMucOptions();
3985                    if (mucOptions.participating()
3986                            || ((Conversation) message.getConversation()).getNextCounterpart()
3987                                    != null) {
3988                        if (!mucOptions.isUserInRoom(user)
3989                                && mucOptions.findUserByRealJid(
3990                                                tcp == null ? null : tcp.asBareJid())
3991                                        == null) {
3992                            Toast.makeText(
3993                                            getActivity(),
3994                                            activity.getString(
3995                                                    R.string.user_has_left_conference,
3996                                                    user.getResource()),
3997                                            Toast.LENGTH_SHORT)
3998                                    .show();
3999                        }
4000                        highlightInConference(user.getResource());
4001                    } else {
4002                        Toast.makeText(
4003                                        getActivity(),
4004                                        R.string.you_are_not_participating,
4005                                        Toast.LENGTH_SHORT)
4006                                .show();
4007                    }
4008                }
4009            }
4010        }
4011    }
4012
4013    private Activity requireActivity() {
4014        final Activity activity = getActivity();
4015        if (activity == null) {
4016            throw new IllegalStateException("Activity not attached");
4017        }
4018        return activity;
4019    }
4020}