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