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