ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
   4import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
   5import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
   6import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
   7import static eu.siacs.conversations.utils.PermissionUtils.audioGranted;
   8import static eu.siacs.conversations.utils.PermissionUtils.cameraGranted;
   9import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
  10import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
  11
  12import android.Manifest;
  13import android.annotation.SuppressLint;
  14import android.app.Activity;
  15import android.app.Fragment;
  16import android.app.FragmentManager;
  17import android.app.PendingIntent;
  18import android.content.ActivityNotFoundException;
  19import android.content.Context;
  20import android.content.DialogInterface;
  21import android.content.Intent;
  22import android.content.IntentSender.SendIntentException;
  23import android.content.SharedPreferences;
  24import android.content.pm.PackageManager;
  25import android.content.res.ColorStateList;
  26import android.net.Uri;
  27import android.os.Build;
  28import android.os.Bundle;
  29import android.os.Handler;
  30import android.os.SystemClock;
  31import android.preference.PreferenceManager;
  32import android.provider.MediaStore;
  33import android.text.Editable;
  34import android.text.TextUtils;
  35import android.util.Log;
  36import android.view.ContextMenu;
  37import android.view.ContextMenu.ContextMenuInfo;
  38import android.view.Gravity;
  39import android.view.LayoutInflater;
  40import android.view.Menu;
  41import android.view.MenuInflater;
  42import android.view.MenuItem;
  43import android.view.MotionEvent;
  44import android.view.View;
  45import android.view.View.OnClickListener;
  46import android.view.ViewGroup;
  47import android.view.inputmethod.EditorInfo;
  48import android.view.inputmethod.InputMethodManager;
  49import android.widget.AbsListView;
  50import android.widget.AbsListView.OnScrollListener;
  51import android.widget.AdapterView;
  52import android.widget.AdapterView.AdapterContextMenuInfo;
  53import android.widget.CheckBox;
  54import android.widget.ListView;
  55import android.widget.PopupMenu;
  56import android.widget.TextView.OnEditorActionListener;
  57import android.widget.Toast;
  58
  59import androidx.annotation.IdRes;
  60import androidx.annotation.NonNull;
  61import androidx.annotation.StringRes;
  62import androidx.appcompat.app.AlertDialog;
  63import androidx.core.view.inputmethod.InputConnectionCompat;
  64import androidx.core.view.inputmethod.InputContentInfoCompat;
  65import androidx.databinding.DataBindingUtil;
  66
  67import com.google.android.material.dialog.MaterialAlertDialogBuilder;
  68import com.google.common.base.Optional;
  69import com.google.common.collect.ImmutableList;
  70
  71import eu.siacs.conversations.Config;
  72import eu.siacs.conversations.R;
  73import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  74import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  75import eu.siacs.conversations.databinding.FragmentConversationBinding;
  76import eu.siacs.conversations.entities.Account;
  77import eu.siacs.conversations.entities.Blockable;
  78import eu.siacs.conversations.entities.Contact;
  79import eu.siacs.conversations.entities.Conversation;
  80import eu.siacs.conversations.entities.Conversational;
  81import eu.siacs.conversations.entities.DownloadableFile;
  82import eu.siacs.conversations.entities.Message;
  83import eu.siacs.conversations.entities.MucOptions;
  84import eu.siacs.conversations.entities.MucOptions.User;
  85import eu.siacs.conversations.entities.Presence;
  86import eu.siacs.conversations.entities.ReadByMarker;
  87import eu.siacs.conversations.entities.Transferable;
  88import eu.siacs.conversations.entities.TransferablePlaceholder;
  89import eu.siacs.conversations.http.HttpDownloadConnection;
  90import eu.siacs.conversations.persistance.FileBackend;
  91import eu.siacs.conversations.services.CallIntegrationConnectionService;
  92import eu.siacs.conversations.services.MessageArchiveService;
  93import eu.siacs.conversations.services.QuickConversationsService;
  94import eu.siacs.conversations.services.XmppConnectionService;
  95import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  96import eu.siacs.conversations.ui.adapter.MessageAdapter;
  97import eu.siacs.conversations.ui.util.ActivityResult;
  98import eu.siacs.conversations.ui.util.Attachment;
  99import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
 100import eu.siacs.conversations.ui.util.DateSeparator;
 101import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
 102import eu.siacs.conversations.ui.util.ListViewUtils;
 103import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 104import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 105import eu.siacs.conversations.ui.util.PendingItem;
 106import eu.siacs.conversations.ui.util.PresenceSelector;
 107import eu.siacs.conversations.ui.util.ScrollState;
 108import eu.siacs.conversations.ui.util.SendButtonAction;
 109import eu.siacs.conversations.ui.util.SendButtonTool;
 110import eu.siacs.conversations.ui.util.ShareUtil;
 111import eu.siacs.conversations.ui.util.ViewUtil;
 112import eu.siacs.conversations.ui.widget.EditMessage;
 113import eu.siacs.conversations.utils.AccountUtils;
 114import eu.siacs.conversations.utils.Compatibility;
 115import eu.siacs.conversations.utils.GeoHelper;
 116import eu.siacs.conversations.utils.MessageUtils;
 117import eu.siacs.conversations.utils.NickValidityChecker;
 118import eu.siacs.conversations.utils.PermissionUtils;
 119import eu.siacs.conversations.utils.QuickLoader;
 120import eu.siacs.conversations.utils.StylingHelper;
 121import eu.siacs.conversations.utils.TimeFrameUtils;
 122import eu.siacs.conversations.utils.UIHelper;
 123import eu.siacs.conversations.xmpp.Jid;
 124import eu.siacs.conversations.xmpp.XmppConnection;
 125import eu.siacs.conversations.xmpp.chatstate.ChatState;
 126import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 127import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 128import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 129import eu.siacs.conversations.xmpp.jingle.Media;
 130import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 131import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 132import eu.siacs.conversations.xmpp.jingle.RtpEndUserState;
 133
 134import org.jetbrains.annotations.NotNull;
 135
 136import java.util.ArrayList;
 137import java.util.Arrays;
 138import java.util.Collection;
 139import java.util.Collections;
 140import java.util.HashSet;
 141import java.util.Iterator;
 142import java.util.List;
 143import java.util.Set;
 144import java.util.UUID;
 145import java.util.concurrent.atomic.AtomicBoolean;
 146
 147public class ConversationFragment extends XmppFragment
 148        implements EditMessage.KeyboardListener,
 149                MessageAdapter.OnContactPictureLongClicked,
 150                MessageAdapter.OnContactPictureClicked {
 151
 152    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 153    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 154    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 155    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 156    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 157    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 158    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 159    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 160    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 161    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 162    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 163    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 164    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 165    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 166    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 167    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 168    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 169
 170    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 171    public static final String STATE_CONVERSATION_UUID =
 172            ConversationFragment.class.getName() + ".uuid";
 173    public static final String STATE_SCROLL_POSITION =
 174            ConversationFragment.class.getName() + ".scroll_position";
 175    public static final String STATE_PHOTO_URI =
 176            ConversationFragment.class.getName() + ".media_previews";
 177    public static final String STATE_MEDIA_PREVIEWS =
 178            ConversationFragment.class.getName() + ".take_photo_uri";
 179    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 180
 181    private final List<Message> messageList = new ArrayList<>();
 182    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 183    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 184    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 185    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 186    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 187    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 188    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 189    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 190    public Uri mPendingEditorContent = null;
 191    protected MessageAdapter messageListAdapter;
 192    private MediaPreviewAdapter mediaPreviewAdapter;
 193    private String lastMessageUuid = null;
 194    private Conversation conversation;
 195    private FragmentConversationBinding binding;
 196    private Toast messageLoaderToast;
 197    private ConversationsActivity activity;
 198    private boolean reInitRequiredOnStart = true;
 199    private final OnClickListener clickToMuc =
 200            new OnClickListener() {
 201
 202                @Override
 203                public void onClick(View v) {
 204                    ConferenceDetailsActivity.open(getActivity(), conversation);
 205                }
 206            };
 207    private final OnClickListener leaveMuc =
 208            new OnClickListener() {
 209
 210                @Override
 211                public void onClick(View v) {
 212                    activity.xmppConnectionService.archiveConversation(conversation);
 213                }
 214            };
 215    private final OnClickListener joinMuc =
 216            new OnClickListener() {
 217
 218                @Override
 219                public void onClick(View v) {
 220                    activity.xmppConnectionService.joinMuc(conversation);
 221                }
 222            };
 223
 224    private final OnClickListener acceptJoin =
 225            new OnClickListener() {
 226                @Override
 227                public void onClick(View v) {
 228                    conversation.setAttribute("accept_non_anonymous", true);
 229                    activity.xmppConnectionService.updateConversation(conversation);
 230                    activity.xmppConnectionService.joinMuc(conversation);
 231                }
 232            };
 233
 234    private final OnClickListener enterPassword =
 235            new OnClickListener() {
 236
 237                @Override
 238                public void onClick(View v) {
 239                    MucOptions muc = conversation.getMucOptions();
 240                    String password = muc.getPassword();
 241                    if (password == null) {
 242                        password = "";
 243                    }
 244                    activity.quickPasswordEdit(
 245                            password,
 246                            value -> {
 247                                activity.xmppConnectionService.providePasswordForMuc(
 248                                        conversation, value);
 249                                return null;
 250                            });
 251                }
 252            };
 253    private final OnScrollListener mOnScrollListener =
 254            new OnScrollListener() {
 255
 256                @Override
 257                public void onScrollStateChanged(AbsListView view, int scrollState) {
 258                    if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 259                        fireReadEvent();
 260                    }
 261                }
 262
 263                @Override
 264                public void onScroll(
 265                        final AbsListView view,
 266                        int firstVisibleItem,
 267                        int visibleItemCount,
 268                        int totalItemCount) {
 269                    toggleScrollDownButton(view);
 270                    synchronized (ConversationFragment.this.messageList) {
 271                        if (firstVisibleItem < 5
 272                                && conversation != null
 273                                && conversation.messagesLoaded.compareAndSet(true, false)
 274                                && messageList.size() > 0) {
 275                            long timestamp;
 276                            if (messageList.get(0).getType() == Message.TYPE_STATUS
 277                                    && messageList.size() >= 2) {
 278                                timestamp = messageList.get(1).getTimeSent();
 279                            } else {
 280                                timestamp = messageList.get(0).getTimeSent();
 281                            }
 282                            activity.xmppConnectionService.loadMoreMessages(
 283                                    conversation,
 284                                    timestamp,
 285                                    new XmppConnectionService.OnMoreMessagesLoaded() {
 286                                        @Override
 287                                        public void onMoreMessagesLoaded(
 288                                                final int c, final Conversation conversation) {
 289                                            if (ConversationFragment.this.conversation
 290                                                    != conversation) {
 291                                                conversation.messagesLoaded.set(true);
 292                                                return;
 293                                            }
 294                                            runOnUiThread(
 295                                                    () -> {
 296                                                        synchronized (messageList) {
 297                                                            final int oldPosition =
 298                                                                    binding.messagesView
 299                                                                            .getFirstVisiblePosition();
 300                                                            Message message = null;
 301                                                            int childPos;
 302                                                            for (childPos = 0;
 303                                                                    childPos + oldPosition
 304                                                                            < messageList.size();
 305                                                                    ++childPos) {
 306                                                                message =
 307                                                                        messageList.get(
 308                                                                                oldPosition
 309                                                                                        + childPos);
 310                                                                if (message.getType()
 311                                                                        != Message.TYPE_STATUS) {
 312                                                                    break;
 313                                                                }
 314                                                            }
 315                                                            final String uuid =
 316                                                                    message != null
 317                                                                            ? message.getUuid()
 318                                                                            : null;
 319                                                            View v =
 320                                                                    binding.messagesView.getChildAt(
 321                                                                            childPos);
 322                                                            final int pxOffset =
 323                                                                    (v == null) ? 0 : v.getTop();
 324                                                            ConversationFragment.this.conversation
 325                                                                    .populateWithMessages(
 326                                                                            ConversationFragment
 327                                                                                    .this
 328                                                                                    .messageList);
 329                                                            try {
 330                                                                updateStatusMessages();
 331                                                            } catch (IllegalStateException e) {
 332                                                                Log.d(
 333                                                                        Config.LOGTAG,
 334                                                                        "caught illegal state exception while updating status messages");
 335                                                            }
 336                                                            messageListAdapter
 337                                                                    .notifyDataSetChanged();
 338                                                            int pos =
 339                                                                    Math.max(
 340                                                                            getIndexOf(
 341                                                                                    uuid,
 342                                                                                    messageList),
 343                                                                            0);
 344                                                            binding.messagesView
 345                                                                    .setSelectionFromTop(
 346                                                                            pos, pxOffset);
 347                                                            if (messageLoaderToast != null) {
 348                                                                messageLoaderToast.cancel();
 349                                                            }
 350                                                            conversation.messagesLoaded.set(true);
 351                                                        }
 352                                                    });
 353                                        }
 354
 355                                        @Override
 356                                        public void informUser(final int resId) {
 357
 358                                            runOnUiThread(
 359                                                    () -> {
 360                                                        if (messageLoaderToast != null) {
 361                                                            messageLoaderToast.cancel();
 362                                                        }
 363                                                        if (ConversationFragment.this.conversation
 364                                                                != conversation) {
 365                                                            return;
 366                                                        }
 367                                                        messageLoaderToast =
 368                                                                Toast.makeText(
 369                                                                        view.getContext(),
 370                                                                        resId,
 371                                                                        Toast.LENGTH_LONG);
 372                                                        messageLoaderToast.show();
 373                                                    });
 374                                        }
 375                                    });
 376                        }
 377                    }
 378                }
 379            };
 380    private final EditMessage.OnCommitContentListener mEditorContentListener =
 381            new EditMessage.OnCommitContentListener() {
 382                @Override
 383                public boolean onCommitContent(
 384                        InputContentInfoCompat inputContentInfo,
 385                        int flags,
 386                        Bundle opts,
 387                        String[] contentMimeTypes) {
 388                    // try to get permission to read the image, if applicable
 389                    if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION)
 390                            != 0) {
 391                        try {
 392                            inputContentInfo.requestPermission();
 393                        } catch (Exception e) {
 394                            Log.e(
 395                                    Config.LOGTAG,
 396                                    "InputContentInfoCompat#requestPermission() failed.",
 397                                    e);
 398                            Toast.makeText(
 399                                            getActivity(),
 400                                            activity.getString(
 401                                                    R.string.no_permission_to_access_x,
 402                                                    inputContentInfo.getDescription()),
 403                                            Toast.LENGTH_LONG)
 404                                    .show();
 405                            return false;
 406                        }
 407                    }
 408                    if (hasPermissions(
 409                            REQUEST_ADD_EDITOR_CONTENT,
 410                            Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 411                        attachEditorContentToConversation(inputContentInfo.getContentUri());
 412                    } else {
 413                        mPendingEditorContent = inputContentInfo.getContentUri();
 414                    }
 415                    return true;
 416                }
 417            };
 418    private Message selectedMessage;
 419    private final OnClickListener mEnableAccountListener =
 420            new OnClickListener() {
 421                @Override
 422                public void onClick(View v) {
 423                    final Account account = conversation == null ? null : conversation.getAccount();
 424                    if (account != null) {
 425                        account.setOption(Account.OPTION_SOFT_DISABLED, false);
 426                        account.setOption(Account.OPTION_DISABLED, false);
 427                        activity.xmppConnectionService.updateAccount(account);
 428                    }
 429                }
 430            };
 431    private final OnClickListener mUnblockClickListener =
 432            new OnClickListener() {
 433                @Override
 434                public void onClick(final View v) {
 435                    v.post(() -> v.setVisibility(View.INVISIBLE));
 436                    if (conversation.isDomainBlocked()) {
 437                        BlockContactDialog.show(activity, conversation);
 438                    } else {
 439                        unblockConversation(conversation);
 440                    }
 441                }
 442            };
 443    private final OnClickListener mBlockClickListener = this::showBlockSubmenu;
 444    private final OnClickListener mAddBackClickListener =
 445            new OnClickListener() {
 446
 447                @Override
 448                public void onClick(View v) {
 449                    final Contact contact = conversation == null ? null : conversation.getContact();
 450                    if (contact != null) {
 451                        activity.xmppConnectionService.createContact(contact, true);
 452                        activity.switchToContactDetails(contact);
 453                    }
 454                }
 455            };
 456    private final View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 457    private final OnClickListener mAllowPresenceSubscription =
 458            new OnClickListener() {
 459                @Override
 460                public void onClick(View v) {
 461                    final Contact contact = conversation == null ? null : conversation.getContact();
 462                    if (contact != null) {
 463                        activity.xmppConnectionService.sendPresencePacket(
 464                                contact.getAccount(),
 465                                activity.xmppConnectionService
 466                                        .getPresenceGenerator()
 467                                        .sendPresenceUpdatesTo(contact));
 468                        hideSnackbar();
 469                    }
 470                }
 471            };
 472    protected OnClickListener clickToDecryptListener =
 473            new OnClickListener() {
 474
 475                @Override
 476                public void onClick(View v) {
 477                    PendingIntent pendingIntent =
 478                            conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 479                    if (pendingIntent != null) {
 480                        try {
 481                            getActivity()
 482                                    .startIntentSenderForResult(
 483                                            pendingIntent.getIntentSender(),
 484                                            REQUEST_DECRYPT_PGP,
 485                                            null,
 486                                            0,
 487                                            0,
 488                                            0,
 489                                            Compatibility.pgpStartIntentSenderOptions());
 490                        } catch (SendIntentException e) {
 491                            Toast.makeText(
 492                                            getActivity(),
 493                                            R.string.unable_to_connect_to_keychain,
 494                                            Toast.LENGTH_SHORT)
 495                                    .show();
 496                            conversation
 497                                    .getAccount()
 498                                    .getPgpDecryptionService()
 499                                    .continueDecryption(true);
 500                        }
 501                    }
 502                    updateSnackBar(conversation);
 503                }
 504            };
 505    private final AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 506    private final OnEditorActionListener mEditorActionListener =
 507            (v, actionId, event) -> {
 508                if (actionId == EditorInfo.IME_ACTION_SEND) {
 509                    InputMethodManager imm =
 510                            (InputMethodManager)
 511                                    activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 512                    if (imm != null && imm.isFullscreenMode()) {
 513                        imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 514                    }
 515                    sendMessage();
 516                    return true;
 517                } else {
 518                    return false;
 519                }
 520            };
 521    private final OnClickListener mScrollButtonListener =
 522            new OnClickListener() {
 523
 524                @Override
 525                public void onClick(View v) {
 526                    stopScrolling();
 527                    setSelection(binding.messagesView.getCount() - 1, true);
 528                }
 529            };
 530    private final OnClickListener mSendButtonListener =
 531            new OnClickListener() {
 532
 533                @Override
 534                public void onClick(View v) {
 535                    Object tag = v.getTag();
 536                    if (tag instanceof SendButtonAction) {
 537                        SendButtonAction action = (SendButtonAction) tag;
 538                        switch (action) {
 539                            case TAKE_PHOTO:
 540                            case RECORD_VIDEO:
 541                            case SEND_LOCATION:
 542                            case RECORD_VOICE:
 543                            case CHOOSE_PICTURE:
 544                                attachFile(action.toChoice());
 545                                break;
 546                            case CANCEL:
 547                                if (conversation != null) {
 548                                    if (conversation.setCorrectingMessage(null)) {
 549                                        binding.textinput.setText("");
 550                                        binding.textinput.append(conversation.getDraftMessage());
 551                                        conversation.setDraftMessage(null);
 552                                    } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 553                                        conversation.setNextCounterpart(null);
 554                                        binding.textinput.setText("");
 555                                    } else {
 556                                        binding.textinput.setText("");
 557                                    }
 558                                    updateChatMsgHint();
 559                                    updateSendButton();
 560                                    updateEditablity();
 561                                }
 562                                break;
 563                            default:
 564                                sendMessage();
 565                        }
 566                    } else {
 567                        sendMessage();
 568                    }
 569                }
 570            };
 571    private int completionIndex = 0;
 572    private int lastCompletionLength = 0;
 573    private String incomplete;
 574    private int lastCompletionCursor;
 575    private boolean firstWord = false;
 576    private Message mPendingDownloadableMessage;
 577
 578    private static ConversationFragment findConversationFragment(Activity activity) {
 579        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 580        if (fragment instanceof ConversationFragment) {
 581            return (ConversationFragment) fragment;
 582        }
 583        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 584        if (fragment instanceof ConversationFragment) {
 585            return (ConversationFragment) fragment;
 586        }
 587        return null;
 588    }
 589
 590    public static void startStopPending(Activity activity) {
 591        ConversationFragment fragment = findConversationFragment(activity);
 592        if (fragment != null) {
 593            fragment.messageListAdapter.startStopPending();
 594        }
 595    }
 596
 597    public static void downloadFile(Activity activity, Message message) {
 598        ConversationFragment fragment = findConversationFragment(activity);
 599        if (fragment != null) {
 600            fragment.startDownloadable(message);
 601        }
 602    }
 603
 604    public static void registerPendingMessage(Activity activity, Message message) {
 605        ConversationFragment fragment = findConversationFragment(activity);
 606        if (fragment != null) {
 607            fragment.pendingMessage.push(message);
 608        }
 609    }
 610
 611    public static void openPendingMessage(Activity activity) {
 612        ConversationFragment fragment = findConversationFragment(activity);
 613        if (fragment != null) {
 614            Message message = fragment.pendingMessage.pop();
 615            if (message != null) {
 616                fragment.messageListAdapter.openDownloadable(message);
 617            }
 618        }
 619    }
 620
 621    public static Conversation getConversation(Activity activity) {
 622        return getConversation(activity, R.id.secondary_fragment);
 623    }
 624
 625    private static Conversation getConversation(Activity activity, @IdRes int res) {
 626        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 627        if (fragment instanceof ConversationFragment) {
 628            return ((ConversationFragment) fragment).getConversation();
 629        } else {
 630            return null;
 631        }
 632    }
 633
 634    public static ConversationFragment get(Activity activity) {
 635        FragmentManager fragmentManager = activity.getFragmentManager();
 636        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 637        if (fragment instanceof ConversationFragment) {
 638            return (ConversationFragment) fragment;
 639        } else {
 640            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 641            return fragment instanceof ConversationFragment
 642                    ? (ConversationFragment) fragment
 643                    : null;
 644        }
 645    }
 646
 647    public static Conversation getConversationReliable(Activity activity) {
 648        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 649        if (conversation != null) {
 650            return conversation;
 651        }
 652        return getConversation(activity, R.id.main_fragment);
 653    }
 654
 655    private static boolean scrolledToBottom(AbsListView listView) {
 656        final int count = listView.getCount();
 657        if (count == 0) {
 658            return true;
 659        } else if (listView.getLastVisiblePosition() == count - 1) {
 660            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 661            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 662        } else {
 663            return false;
 664        }
 665    }
 666
 667    private void toggleScrollDownButton() {
 668        toggleScrollDownButton(binding.messagesView);
 669    }
 670
 671    private void toggleScrollDownButton(AbsListView listView) {
 672        if (conversation == null) {
 673            return;
 674        }
 675        if (scrolledToBottom(listView)) {
 676            lastMessageUuid = null;
 677            hideUnreadMessagesCount();
 678        } else {
 679            binding.scrollToBottomButton.setEnabled(true);
 680            binding.scrollToBottomButton.show();
 681            if (lastMessageUuid == null) {
 682                lastMessageUuid = conversation.getLatestMessage().getUuid();
 683            }
 684            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 685                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 686            }
 687        }
 688    }
 689
 690    private int getIndexOf(String uuid, List<Message> messages) {
 691        if (uuid == null) {
 692            return messages.size() - 1;
 693        }
 694        for (int i = 0; i < messages.size(); ++i) {
 695            if (uuid.equals(messages.get(i).getUuid())) {
 696                return i;
 697            } else {
 698                Message next = messages.get(i);
 699                while (next != null && next.wasMergedIntoPrevious()) {
 700                    if (uuid.equals(next.getUuid())) {
 701                        return i;
 702                    }
 703                    next = next.next();
 704                }
 705            }
 706        }
 707        return -1;
 708    }
 709
 710    private ScrollState getScrollPosition() {
 711        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 712        if (listView == null
 713                || listView.getCount() == 0
 714                || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 715            return null;
 716        } else {
 717            final int pos = listView.getFirstVisiblePosition();
 718            final View view = listView.getChildAt(0);
 719            if (view == null) {
 720                return null;
 721            } else {
 722                return new ScrollState(pos, view.getTop());
 723            }
 724        }
 725    }
 726
 727    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 728        if (scrollPosition != null) {
 729
 730            this.lastMessageUuid = lastMessageUuid;
 731            if (lastMessageUuid != null) {
 732                binding.unreadCountCustomView.setUnreadCount(
 733                        conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 734            }
 735            // TODO maybe this needs a 'post'
 736            this.binding.messagesView.setSelectionFromTop(
 737                    scrollPosition.position, scrollPosition.offset);
 738            toggleScrollDownButton();
 739        }
 740    }
 741
 742    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 743        if (conversation == null) {
 744            return;
 745        }
 746        activity.xmppConnectionService.attachLocationToConversation(
 747                conversation,
 748                uri,
 749                new UiCallback<Message>() {
 750
 751                    @Override
 752                    public void success(Message message) {}
 753
 754                    @Override
 755                    public void error(int errorCode, Message object) {
 756                        // TODO show possible pgp error
 757                    }
 758
 759                    @Override
 760                    public void userInputRequired(PendingIntent pi, Message object) {}
 761                });
 762    }
 763
 764    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 765        if (conversation == null) {
 766            return;
 767        }
 768        final Toast prepareFileToast =
 769                Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 770        prepareFileToast.show();
 771        activity.delegateUriPermissionsToService(uri);
 772        activity.xmppConnectionService.attachFileToConversation(
 773                conversation,
 774                uri,
 775                type,
 776                new UiInformableCallback<Message>() {
 777                    @Override
 778                    public void inform(final String text) {
 779                        hidePrepareFileToast(prepareFileToast);
 780                        runOnUiThread(() -> activity.replaceToast(text));
 781                    }
 782
 783                    @Override
 784                    public void success(Message message) {
 785                        runOnUiThread(() -> activity.hideToast());
 786                        hidePrepareFileToast(prepareFileToast);
 787                    }
 788
 789                    @Override
 790                    public void error(final int errorCode, Message message) {
 791                        hidePrepareFileToast(prepareFileToast);
 792                        runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 793                    }
 794
 795                    @Override
 796                    public void userInputRequired(PendingIntent pi, Message message) {
 797                        hidePrepareFileToast(prepareFileToast);
 798                    }
 799                });
 800    }
 801
 802    public void attachEditorContentToConversation(Uri uri) {
 803        mediaPreviewAdapter.addMediaPreviews(
 804                Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 805        toggleInputMethod();
 806    }
 807
 808    private void attachImageToConversation(Conversation conversation, Uri uri, String type) {
 809        if (conversation == null) {
 810            return;
 811        }
 812        final Toast prepareFileToast =
 813                Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 814        prepareFileToast.show();
 815        activity.delegateUriPermissionsToService(uri);
 816        activity.xmppConnectionService.attachImageToConversation(
 817                conversation,
 818                uri,
 819                type,
 820                new UiCallback<Message>() {
 821
 822                    @Override
 823                    public void userInputRequired(PendingIntent pi, Message object) {
 824                        hidePrepareFileToast(prepareFileToast);
 825                    }
 826
 827                    @Override
 828                    public void success(Message message) {
 829                        hidePrepareFileToast(prepareFileToast);
 830                    }
 831
 832                    @Override
 833                    public void error(final int error, final Message message) {
 834                        hidePrepareFileToast(prepareFileToast);
 835                        final ConversationsActivity activity = ConversationFragment.this.activity;
 836                        if (activity == null) {
 837                            return;
 838                        }
 839                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 840                    }
 841                });
 842    }
 843
 844    private void hidePrepareFileToast(final Toast prepareFileToast) {
 845        if (prepareFileToast != null && activity != null) {
 846            activity.runOnUiThread(prepareFileToast::cancel);
 847        }
 848    }
 849
 850    private void sendMessage() {
 851        if (mediaPreviewAdapter.hasAttachments()) {
 852            commitAttachments();
 853            return;
 854        }
 855        final Editable text = this.binding.textinput.getText();
 856        final String body = text == null ? "" : text.toString();
 857        final Conversation conversation = this.conversation;
 858        if (body.length() == 0 || conversation == null) {
 859            return;
 860        }
 861        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_TEXT)) {
 862            return;
 863        }
 864        final Message message;
 865        if (conversation.getCorrectingMessage() == null) {
 866            message = new Message(conversation, body, conversation.getNextEncryption());
 867            Message.configurePrivateMessage(message);
 868        } else {
 869            message = conversation.getCorrectingMessage();
 870            message.setBody(body);
 871            message.putEdited(message.getUuid(), message.getServerMsgId());
 872            message.setServerMsgId(null);
 873            message.setUuid(UUID.randomUUID().toString());
 874        }
 875        switch (conversation.getNextEncryption()) {
 876            case Message.ENCRYPTION_PGP:
 877                sendPgpMessage(message);
 878                break;
 879            default:
 880                sendMessage(message);
 881        }
 882    }
 883
 884    private boolean trustKeysIfNeeded(final Conversation conversation, final int requestCode) {
 885        return conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL
 886                && trustKeysIfNeeded(requestCode);
 887    }
 888
 889    protected boolean trustKeysIfNeeded(int requestCode) {
 890        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 891        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 892        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 893        boolean hasUndecidedOwn =
 894                !axolotlService
 895                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided())
 896                        .isEmpty();
 897        boolean hasUndecidedContacts =
 898                !axolotlService
 899                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets)
 900                        .isEmpty();
 901        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 902        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 903        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 904        if (hasUndecidedOwn
 905                || hasUndecidedContacts
 906                || hasPendingKeys
 907                || hasNoTrustedKeys
 908                || hasUnaccepted
 909                || downloadInProgress) {
 910            axolotlService.createSessionsIfNeeded(conversation);
 911            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 912            String[] contacts = new String[targets.size()];
 913            for (int i = 0; i < contacts.length; ++i) {
 914                contacts[i] = targets.get(i).toString();
 915            }
 916            intent.putExtra("contacts", contacts);
 917            intent.putExtra(
 918                    EXTRA_ACCOUNT,
 919                    conversation.getAccount().getJid().asBareJid().toEscapedString());
 920            intent.putExtra("conversation", conversation.getUuid());
 921            startActivityForResult(intent, requestCode);
 922            return true;
 923        } else {
 924            return false;
 925        }
 926    }
 927
 928    public void updateChatMsgHint() {
 929        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 930        if (conversation.getCorrectingMessage() != null) {
 931            this.binding.textInputHint.setVisibility(View.GONE);
 932            this.binding.textinput.setHint(R.string.send_corrected_message);
 933        } else if (multi && conversation.getNextCounterpart() != null) {
 934            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 935            this.binding.textInputHint.setVisibility(View.VISIBLE);
 936            this.binding.textInputHint.setText(
 937                    getString(
 938                            R.string.send_private_message_to,
 939                            conversation.getNextCounterpart().getResource()));
 940        } else if (multi && !conversation.getMucOptions().participating()) {
 941            this.binding.textInputHint.setVisibility(View.GONE);
 942            this.binding.textinput.setHint(R.string.you_are_not_participating);
 943        } else {
 944            this.binding.textInputHint.setVisibility(View.GONE);
 945            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 946            getActivity().invalidateOptionsMenu();
 947        }
 948    }
 949
 950    public void setupIme() {
 951        this.binding.textinput.refreshIme();
 952    }
 953
 954    private void handleActivityResult(ActivityResult activityResult) {
 955        if (activityResult.resultCode == Activity.RESULT_OK) {
 956            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 957        } else {
 958            handleNegativeActivityResult(activityResult.requestCode);
 959        }
 960    }
 961
 962    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 963        switch (requestCode) {
 964            case REQUEST_TRUST_KEYS_TEXT:
 965                sendMessage();
 966                break;
 967            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 968                commitAttachments();
 969                break;
 970            case REQUEST_START_AUDIO_CALL:
 971                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
 972                break;
 973            case REQUEST_START_VIDEO_CALL:
 974                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
 975                break;
 976            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 977                final List<Attachment> imageUris =
 978                        Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 979                mediaPreviewAdapter.addMediaPreviews(imageUris);
 980                toggleInputMethod();
 981                break;
 982            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 983                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 984                if (takePhotoUri != null) {
 985                    mediaPreviewAdapter.addMediaPreviews(
 986                            Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 987                    toggleInputMethod();
 988                } else {
 989                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 990                }
 991                break;
 992            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 993            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 994            case ATTACHMENT_CHOICE_RECORD_VOICE:
 995                final Attachment.Type type =
 996                        requestCode == ATTACHMENT_CHOICE_RECORD_VOICE
 997                                ? Attachment.Type.RECORDING
 998                                : Attachment.Type.FILE;
 999                final List<Attachment> fileUris =
1000                        Attachment.extractAttachments(getActivity(), data, type);
1001                mediaPreviewAdapter.addMediaPreviews(fileUris);
1002                toggleInputMethod();
1003                break;
1004            case ATTACHMENT_CHOICE_LOCATION:
1005                final double latitude = data.getDoubleExtra("latitude", 0);
1006                final double longitude = data.getDoubleExtra("longitude", 0);
1007                final int accuracy = data.getIntExtra("accuracy", 0);
1008                final Uri geo;
1009                if (accuracy > 0) {
1010                    geo = Uri.parse(String.format("geo:%s,%s;u=%s", latitude, longitude, accuracy));
1011                } else {
1012                    geo = Uri.parse(String.format("geo:%s,%s", latitude, longitude));
1013                }
1014                mediaPreviewAdapter.addMediaPreviews(
1015                        Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
1016                toggleInputMethod();
1017                break;
1018            case REQUEST_INVITE_TO_CONVERSATION:
1019                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
1020                if (invite != null) {
1021                    if (invite.execute(activity)) {
1022                        activity.mToast =
1023                                Toast.makeText(
1024                                        activity, R.string.creating_conference, Toast.LENGTH_LONG);
1025                        activity.mToast.show();
1026                    }
1027                }
1028                break;
1029        }
1030    }
1031
1032    private void commitAttachments() {
1033        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
1034        if (anyNeedsExternalStoragePermission(attachments)
1035                && !hasPermissions(
1036                        REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1037            return;
1038        }
1039        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_ATTACHMENTS)) {
1040            return;
1041        }
1042        final PresenceSelector.OnPresenceSelected callback =
1043                () -> {
1044                    for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
1045                        final Attachment attachment = i.next();
1046                        if (attachment.getType() == Attachment.Type.LOCATION) {
1047                            attachLocationToConversation(conversation, attachment.getUri());
1048                        } else if (attachment.getType() == Attachment.Type.IMAGE) {
1049                            Log.d(
1050                                    Config.LOGTAG,
1051                                    "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
1052                            attachImageToConversation(
1053                                    conversation, attachment.getUri(), attachment.getMime());
1054                        } else {
1055                            Log.d(
1056                                    Config.LOGTAG,
1057                                    "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
1058                            attachFileToConversation(
1059                                    conversation, attachment.getUri(), attachment.getMime());
1060                        }
1061                    }
1062                    mediaPreviewAdapter.notifyDataSetChanged();
1063                    toggleInputMethod();
1064                };
1065        if (conversation == null
1066                || conversation.getMode() == Conversation.MODE_MULTI
1067                || Attachment.canBeSendInBand(attachments)
1068                || (conversation.getAccount().httpUploadAvailable()
1069                        && FileBackend.allFilesUnderSize(
1070                                getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
1071            callback.onPresenceSelected();
1072        } else {
1073            activity.selectPresence(conversation, callback);
1074        }
1075    }
1076
1077    private static boolean anyNeedsExternalStoragePermission(
1078            final Collection<Attachment> attachments) {
1079        for (final Attachment attachment : attachments) {
1080            if (attachment.getType() != Attachment.Type.LOCATION) {
1081                return true;
1082            }
1083        }
1084        return false;
1085    }
1086
1087    public void toggleInputMethod() {
1088        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
1089        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
1090        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
1091        updateSendButton();
1092    }
1093
1094    private void handleNegativeActivityResult(int requestCode) {
1095        switch (requestCode) {
1096            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1097                if (pendingTakePhotoUri.clear()) {
1098                    Log.d(
1099                            Config.LOGTAG,
1100                            "cleared pending photo uri after negative activity result");
1101                }
1102                break;
1103        }
1104    }
1105
1106    @Override
1107    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
1108        super.onActivityResult(requestCode, resultCode, data);
1109        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
1110        if (activity != null && activity.xmppConnectionService != null) {
1111            handleActivityResult(activityResult);
1112        } else {
1113            this.postponedActivityResult.push(activityResult);
1114        }
1115    }
1116
1117    public void unblockConversation(final Blockable conversation) {
1118        activity.xmppConnectionService.sendUnblockRequest(conversation);
1119    }
1120
1121    @Override
1122    public void onAttach(Activity activity) {
1123        super.onAttach(activity);
1124        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
1125        if (activity instanceof ConversationsActivity) {
1126            this.activity = (ConversationsActivity) activity;
1127        } else {
1128            throw new IllegalStateException(
1129                    "Trying to attach fragment to activity that is not the ConversationsActivity");
1130        }
1131    }
1132
1133    @Override
1134    public void onDetach() {
1135        super.onDetach();
1136        this.activity = null; // TODO maybe not a good idea since some callbacks really need it
1137    }
1138
1139    @Override
1140    public void onCreate(Bundle savedInstanceState) {
1141        super.onCreate(savedInstanceState);
1142        setHasOptionsMenu(true);
1143    }
1144
1145    @Override
1146    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
1147        menuInflater.inflate(R.menu.fragment_conversation, menu);
1148        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
1149        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
1150        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
1151        final MenuItem menuMute = menu.findItem(R.id.action_mute);
1152        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
1153        final MenuItem menuCall = menu.findItem(R.id.action_call);
1154        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
1155        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
1156        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
1157
1158        if (conversation != null) {
1159            if (conversation.getMode() == Conversation.MODE_MULTI) {
1160                menuContactDetails.setVisible(false);
1161                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
1162                menuMucDetails.setTitle(
1163                        conversation.getMucOptions().isPrivateAndNonAnonymous()
1164                                ? R.string.action_muc_details
1165                                : R.string.channel_details);
1166                menuCall.setVisible(false);
1167                menuOngoingCall.setVisible(false);
1168            } else {
1169                final XmppConnectionService service =
1170                        activity == null ? null : activity.xmppConnectionService;
1171                final Optional<OngoingRtpSession> ongoingRtpSession =
1172                        service == null
1173                                ? Optional.absent()
1174                                : service.getJingleConnectionManager()
1175                                        .getOngoingRtpConnection(conversation.getContact());
1176                if (ongoingRtpSession.isPresent()) {
1177                    menuOngoingCall.setVisible(true);
1178                    menuCall.setVisible(false);
1179                } else {
1180                    menuOngoingCall.setVisible(false);
1181                    final RtpCapability.Capability rtpCapability =
1182                            RtpCapability.check(conversation.getContact());
1183                    final boolean cameraAvailable =
1184                            activity != null && activity.isCameraFeatureAvailable();
1185                    menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
1186                    menuVideoCall.setVisible(
1187                            rtpCapability == RtpCapability.Capability.VIDEO && cameraAvailable);
1188                }
1189                menuContactDetails.setVisible(!this.conversation.withSelf());
1190                menuMucDetails.setVisible(false);
1191                menuInviteContact.setVisible(
1192                        service != null
1193                                && service.findConferenceServer(conversation.getAccount()) != null);
1194            }
1195            if (conversation.isMuted()) {
1196                menuMute.setVisible(false);
1197            } else {
1198                menuUnmute.setVisible(false);
1199            }
1200            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1201            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1202            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1203                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1204            } else {
1205                menuTogglePinned.setTitle(R.string.add_to_favorites);
1206            }
1207        }
1208        super.onCreateOptionsMenu(menu, menuInflater);
1209    }
1210
1211    @Override
1212    public View onCreateView(
1213            final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1214        this.binding =
1215                DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1216        binding.getRoot().setOnClickListener(null); // TODO why the fuck did we do this?
1217
1218        binding.textinput.addTextChangedListener(
1219                new StylingHelper.MessageEditorStyler(binding.textinput));
1220
1221        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1222        binding.textinput.setRichContentListener(new String[] {"image/*"}, mEditorContentListener);
1223
1224        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1225
1226        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1227        binding.messagesView.setOnScrollListener(mOnScrollListener);
1228        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1229        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1230        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1231        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1232        messageListAdapter.setOnContactPictureClicked(this);
1233        messageListAdapter.setOnContactPictureLongClicked(this);
1234        binding.messagesView.setAdapter(messageListAdapter);
1235
1236        registerForContextMenu(binding.messagesView);
1237
1238        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1239            this.binding.textinput.setCustomInsertionActionModeCallback(
1240                    new EditMessageActionModeCallback(this.binding.textinput));
1241        }
1242
1243        return binding.getRoot();
1244    }
1245
1246    @Override
1247    public void onDestroyView() {
1248        super.onDestroyView();
1249        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1250        messageListAdapter.setOnContactPictureClicked(null);
1251        messageListAdapter.setOnContactPictureLongClicked(null);
1252    }
1253
1254    private void quoteText(String text) {
1255        if (binding.textinput.isEnabled()) {
1256            binding.textinput.insertAsQuote(text);
1257            binding.textinput.requestFocus();
1258            InputMethodManager inputMethodManager =
1259                    (InputMethodManager)
1260                            getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1261            if (inputMethodManager != null) {
1262                inputMethodManager.showSoftInput(
1263                        binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1264            }
1265        }
1266    }
1267
1268    private void quoteMessage(Message message) {
1269        quoteText(MessageUtils.prepareQuote(message));
1270    }
1271
1272    @Override
1273    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1274        // This should cancel any remaining click events that would otherwise trigger links
1275        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1276        synchronized (this.messageList) {
1277            super.onCreateContextMenu(menu, v, menuInfo);
1278            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1279            this.selectedMessage = this.messageList.get(acmi.position);
1280            populateContextMenu(menu);
1281        }
1282    }
1283
1284    private void populateContextMenu(ContextMenu menu) {
1285        final Message m = this.selectedMessage;
1286        final Transferable t = m.getTransferable();
1287        Message relevantForCorrection = m;
1288        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1289            relevantForCorrection = relevantForCorrection.next();
1290        }
1291        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1292
1293            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE
1294                    || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1295                return;
1296            }
1297
1298            if (m.getStatus() == Message.STATUS_RECEIVED
1299                    && t != null
1300                    && (t.getStatus() == Transferable.STATUS_CANCELLED
1301                            || t.getStatus() == Transferable.STATUS_FAILED)) {
1302                return;
1303            }
1304
1305            final boolean deleted = m.isDeleted();
1306            final boolean encrypted =
1307                    m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1308                            || m.getEncryption() == Message.ENCRYPTION_PGP;
1309            final boolean receiving =
1310                    m.getStatus() == Message.STATUS_RECEIVED
1311                            && (t instanceof JingleFileTransferConnection
1312                                    || t instanceof HttpDownloadConnection);
1313            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1314            menu.setHeaderTitle(R.string.message_options);
1315            final MenuItem reportAndBlock = menu.findItem(R.id.action_report_and_block);
1316            MenuItem openWith = menu.findItem(R.id.open_with);
1317            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1318            MenuItem copyLink = menu.findItem(R.id.copy_link);
1319            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1320            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1321            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1322            MenuItem shareWith = menu.findItem(R.id.share_with);
1323            MenuItem sendAgain = menu.findItem(R.id.send_again);
1324            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1325            MenuItem downloadFile = menu.findItem(R.id.download_file);
1326            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1327            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1328            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1329            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1330            final boolean showError =
1331                    m.getStatus() == Message.STATUS_SEND_FAILED
1332                            && m.getErrorMessage() != null
1333                            && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1334            final Conversational conversational = m.getConversation();
1335            if (m.getStatus() == Message.STATUS_RECEIVED && conversational instanceof Conversation c) {
1336                final XmppConnection connection = c.getAccount().getXmppConnection();
1337                if (c.isWithStranger()
1338                        && m.getServerMsgId() != null
1339                        && !c.isBlocked()
1340                        && connection != null
1341                        && connection.getFeatures().spamReporting()) {
1342                    reportAndBlock.setVisible(true);
1343                }
1344            }
1345            if (!m.isFileOrImage()
1346                    && !encrypted
1347                    && !m.isGeoUri()
1348                    && !m.treatAsDownloadable()
1349                    && !unInitiatedButKnownSize
1350                    && t == null) {
1351                copyMessage.setVisible(true);
1352                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1353                final String scheme = ShareUtil.getLinkScheme(m.getMergedBody());
1354                if ("xmpp".equals(scheme)) {
1355                    copyLink.setTitle(R.string.copy_jabber_id);
1356                    copyLink.setVisible(true);
1357                } else if (scheme != null) {
1358                    copyLink.setVisible(true);
1359                }
1360            }
1361            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1362                retryDecryption.setVisible(true);
1363            }
1364            if (!showError
1365                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1366                    && !m.isGeoUri()
1367                    && relevantForCorrection.isLastCorrectableMessage()
1368                    && m.getConversation() instanceof Conversation) {
1369                correctMessage.setVisible(true);
1370            }
1371            if ((m.isFileOrImage() && !deleted && !receiving)
1372                    || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())
1373                            && !unInitiatedButKnownSize
1374                            && t == null) {
1375                shareWith.setVisible(true);
1376            }
1377            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1378                sendAgain.setVisible(true);
1379            }
1380            if (m.hasFileOnRemoteHost()
1381                    || m.isGeoUri()
1382                    || m.treatAsDownloadable()
1383                    || unInitiatedButKnownSize
1384                    || t instanceof HttpDownloadConnection) {
1385                copyUrl.setVisible(true);
1386            }
1387            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1388                downloadFile.setVisible(true);
1389                downloadFile.setTitle(
1390                        activity.getString(
1391                                R.string.download_x_file,
1392                                UIHelper.getFileDescriptionString(activity, m)));
1393            }
1394            final boolean waitingOfferedSending =
1395                    m.getStatus() == Message.STATUS_WAITING
1396                            || m.getStatus() == Message.STATUS_UNSEND
1397                            || m.getStatus() == Message.STATUS_OFFERED;
1398            final boolean cancelable =
1399                    (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1400            if (cancelable) {
1401                cancelTransmission.setVisible(true);
1402            }
1403            if (m.isFileOrImage() && !deleted && !cancelable) {
1404                final String path = m.getRelativeFilePath();
1405                if (path == null
1406                        || !path.startsWith("/")
1407                        || FileBackend.inConversationsDirectory(requireActivity(), path)) {
1408                    deleteFile.setVisible(true);
1409                    deleteFile.setTitle(
1410                            activity.getString(
1411                                    R.string.delete_x_file,
1412                                    UIHelper.getFileDescriptionString(activity, m)));
1413                }
1414            }
1415            if (showError) {
1416                showErrorMessage.setVisible(true);
1417            }
1418            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1419            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m))
1420                    || (mime != null && mime.startsWith("audio/"))) {
1421                openWith.setVisible(true);
1422            }
1423        }
1424    }
1425
1426    @Override
1427    public boolean onContextItemSelected(MenuItem item) {
1428        switch (item.getItemId()) {
1429            case R.id.share_with:
1430                ShareUtil.share(activity, selectedMessage);
1431                return true;
1432            case R.id.correct_message:
1433                correctMessage(selectedMessage);
1434                return true;
1435            case R.id.copy_message:
1436                ShareUtil.copyToClipboard(activity, selectedMessage);
1437                return true;
1438            case R.id.copy_link:
1439                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1440                return true;
1441            case R.id.quote_message:
1442                quoteMessage(selectedMessage);
1443                return true;
1444            case R.id.send_again:
1445                resendMessage(selectedMessage);
1446                return true;
1447            case R.id.copy_url:
1448                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1449                return true;
1450            case R.id.download_file:
1451                startDownloadable(selectedMessage);
1452                return true;
1453            case R.id.cancel_transmission:
1454                cancelTransmission(selectedMessage);
1455                return true;
1456            case R.id.retry_decryption:
1457                retryDecryption(selectedMessage);
1458                return true;
1459            case R.id.delete_file:
1460                deleteFile(selectedMessage);
1461                return true;
1462            case R.id.show_error_message:
1463                showErrorMessage(selectedMessage);
1464                return true;
1465            case R.id.open_with:
1466                openWith(selectedMessage);
1467                return true;
1468            case R.id.action_report_and_block:
1469                reportMessage(selectedMessage);
1470                return true;
1471            default:
1472                return super.onContextItemSelected(item);
1473        }
1474    }
1475
1476    @Override
1477    public boolean onOptionsItemSelected(final MenuItem item) {
1478        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1479            return false;
1480        } else if (conversation == null) {
1481            return super.onOptionsItemSelected(item);
1482        }
1483        switch (item.getItemId()) {
1484            case R.id.encryption_choice_axolotl:
1485            case R.id.encryption_choice_pgp:
1486            case R.id.encryption_choice_none:
1487                handleEncryptionSelection(item);
1488                break;
1489            case R.id.attach_choose_picture:
1490            case R.id.attach_take_picture:
1491            case R.id.attach_record_video:
1492            case R.id.attach_choose_file:
1493            case R.id.attach_record_voice:
1494            case R.id.attach_location:
1495                handleAttachmentSelection(item);
1496                break;
1497            case R.id.action_search:
1498                startSearch();
1499                break;
1500            case R.id.action_archive:
1501                activity.xmppConnectionService.archiveConversation(conversation);
1502                break;
1503            case R.id.action_contact_details:
1504                activity.switchToContactDetails(conversation.getContact());
1505                break;
1506            case R.id.action_muc_details:
1507                ConferenceDetailsActivity.open(getActivity(), conversation);
1508                break;
1509            case R.id.action_invite:
1510                startActivityForResult(
1511                        ChooseContactActivity.create(activity, conversation),
1512                        REQUEST_INVITE_TO_CONVERSATION);
1513                break;
1514            case R.id.action_clear_history:
1515                clearHistoryDialog(conversation);
1516                break;
1517            case R.id.action_mute:
1518                muteConversationDialog(conversation);
1519                break;
1520            case R.id.action_unmute:
1521                unMuteConversation(conversation);
1522                break;
1523            case R.id.action_block:
1524            case R.id.action_unblock:
1525                final Activity activity = getActivity();
1526                if (activity instanceof XmppActivity) {
1527                    BlockContactDialog.show((XmppActivity) activity, conversation);
1528                }
1529                break;
1530            case R.id.action_audio_call:
1531                checkPermissionAndTriggerAudioCall();
1532                break;
1533            case R.id.action_video_call:
1534                checkPermissionAndTriggerVideoCall();
1535                break;
1536            case R.id.action_ongoing_call:
1537                returnToOngoingCall();
1538                break;
1539            case R.id.action_toggle_pinned:
1540                togglePinned();
1541                break;
1542            default:
1543                break;
1544        }
1545        return super.onOptionsItemSelected(item);
1546    }
1547
1548    private void startSearch() {
1549        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1550        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1551        startActivity(intent);
1552    }
1553
1554    private void returnToOngoingCall() {
1555        final Optional<OngoingRtpSession> ongoingRtpSession =
1556                activity.xmppConnectionService
1557                        .getJingleConnectionManager()
1558                        .getOngoingRtpConnection(conversation.getContact());
1559        if (ongoingRtpSession.isPresent()) {
1560            final OngoingRtpSession id = ongoingRtpSession.get();
1561            final Intent intent = new Intent(getActivity(), RtpSessionActivity.class);
1562            intent.setAction(Intent.ACTION_VIEW);
1563            intent.putExtra(
1564                    RtpSessionActivity.EXTRA_ACCOUNT,
1565                    id.getAccount().getJid().asBareJid().toEscapedString());
1566            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1567            if (id instanceof AbstractJingleConnection) {
1568                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1569                startActivity(intent);
1570            } else if (id instanceof JingleConnectionManager.RtpSessionProposal proposal) {
1571                if (Media.audioOnly(proposal.media)) {
1572                    intent.putExtra(
1573                            RtpSessionActivity.EXTRA_LAST_ACTION,
1574                            RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1575                } else {
1576                    intent.putExtra(
1577                            RtpSessionActivity.EXTRA_LAST_ACTION,
1578                            RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1579                }
1580                intent.putExtra(RtpSessionActivity.EXTRA_PROPOSED_SESSION_ID, proposal.sessionId);
1581                startActivity(intent);
1582            }
1583        }
1584    }
1585
1586    private void togglePinned() {
1587        final boolean pinned =
1588                conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1589        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1590        activity.xmppConnectionService.updateConversation(conversation);
1591        activity.invalidateOptionsMenu();
1592    }
1593
1594    private void checkPermissionAndTriggerAudioCall() {
1595        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1596            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1597            return;
1598        }
1599        final List<String> permissions;
1600        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1601            permissions =
1602                    Arrays.asList(
1603                            Manifest.permission.RECORD_AUDIO,
1604                            Manifest.permission.BLUETOOTH_CONNECT);
1605        } else {
1606            permissions = Collections.singletonList(Manifest.permission.RECORD_AUDIO);
1607        }
1608        if (hasPermissions(REQUEST_START_AUDIO_CALL, permissions)) {
1609            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1610        }
1611    }
1612
1613    private void checkPermissionAndTriggerVideoCall() {
1614        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1615            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1616            return;
1617        }
1618        final List<String> permissions;
1619        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1620            permissions =
1621                    Arrays.asList(
1622                            Manifest.permission.RECORD_AUDIO,
1623                            Manifest.permission.CAMERA,
1624                            Manifest.permission.BLUETOOTH_CONNECT);
1625        } else {
1626            permissions =
1627                    Arrays.asList(Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA);
1628        }
1629        if (hasPermissions(REQUEST_START_VIDEO_CALL, permissions)) {
1630            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1631        }
1632    }
1633
1634    private void triggerRtpSession(final String action) {
1635        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy()) {
1636            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG)
1637                    .show();
1638            return;
1639        }
1640        final Account account = conversation.getAccount();
1641        if (account.setOption(Account.OPTION_SOFT_DISABLED, false)) {
1642            activity.xmppConnectionService.updateAccount(account);
1643        }
1644        final Contact contact = conversation.getContact();
1645        if (Config.USE_JINGLE_MESSAGE_INIT && RtpCapability.jmiSupport(contact)) {
1646            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1647        } else {
1648            final RtpCapability.Capability capability;
1649            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1650                capability = RtpCapability.Capability.VIDEO;
1651            } else {
1652                capability = RtpCapability.Capability.AUDIO;
1653            }
1654            PresenceSelector.selectFullJidForDirectRtpConnection(
1655                    activity,
1656                    contact,
1657                    capability,
1658                    fullJid -> {
1659                        triggerRtpSession(contact.getAccount(), fullJid, action);
1660                    });
1661        }
1662    }
1663
1664    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1665        CallIntegrationConnectionService.placeCall(activity.xmppConnectionService, account,with,RtpSessionActivity.actionToMedia(action));
1666    }
1667
1668    private void handleAttachmentSelection(MenuItem item) {
1669        switch (item.getItemId()) {
1670            case R.id.attach_choose_picture:
1671                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1672                break;
1673            case R.id.attach_take_picture:
1674                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1675                break;
1676            case R.id.attach_record_video:
1677                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1678                break;
1679            case R.id.attach_choose_file:
1680                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1681                break;
1682            case R.id.attach_record_voice:
1683                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1684                break;
1685            case R.id.attach_location:
1686                attachFile(ATTACHMENT_CHOICE_LOCATION);
1687                break;
1688        }
1689    }
1690
1691    private void handleEncryptionSelection(MenuItem item) {
1692        if (conversation == null) {
1693            return;
1694        }
1695        final boolean updated;
1696        switch (item.getItemId()) {
1697            case R.id.encryption_choice_none:
1698                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1699                item.setChecked(true);
1700                break;
1701            case R.id.encryption_choice_pgp:
1702                if (activity.hasPgp()) {
1703                    if (conversation.getAccount().getPgpSignature() != null) {
1704                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1705                        item.setChecked(true);
1706                    } else {
1707                        updated = false;
1708                        activity.announcePgp(
1709                                conversation.getAccount(),
1710                                conversation,
1711                                null,
1712                                activity.onOpenPGPKeyPublished);
1713                    }
1714                } else {
1715                    activity.showInstallPgpDialog();
1716                    updated = false;
1717                }
1718                break;
1719            case R.id.encryption_choice_axolotl:
1720                Log.d(
1721                        Config.LOGTAG,
1722                        AxolotlService.getLogprefix(conversation.getAccount())
1723                                + "Enabled axolotl for Contact "
1724                                + conversation.getContact().getJid());
1725                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1726                item.setChecked(true);
1727                break;
1728            default:
1729                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1730                break;
1731        }
1732        if (updated) {
1733            activity.xmppConnectionService.updateConversation(conversation);
1734        }
1735        updateChatMsgHint();
1736        getActivity().invalidateOptionsMenu();
1737        activity.refreshUi();
1738    }
1739
1740    public void attachFile(final int attachmentChoice) {
1741        attachFile(attachmentChoice, true);
1742    }
1743
1744    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1745        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1746            if (!hasPermissions(
1747                    attachmentChoice,
1748                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1749                    Manifest.permission.RECORD_AUDIO)) {
1750                return;
1751            }
1752        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO
1753                || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1754            if (!hasPermissions(
1755                    attachmentChoice,
1756                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1757                    Manifest.permission.CAMERA)) {
1758                return;
1759            }
1760        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1761            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1762                return;
1763            }
1764        }
1765        if (updateRecentlyUsed) {
1766            storeRecentlyUsedQuickAction(attachmentChoice);
1767        }
1768        final int encryption = conversation.getNextEncryption();
1769        final int mode = conversation.getMode();
1770        if (encryption == Message.ENCRYPTION_PGP) {
1771            if (activity.hasPgp()) {
1772                if (mode == Conversation.MODE_SINGLE
1773                        && conversation.getContact().getPgpKeyId() != 0) {
1774                    activity.xmppConnectionService
1775                            .getPgpEngine()
1776                            .hasKey(
1777                                    conversation.getContact(),
1778                                    new UiCallback<Contact>() {
1779
1780                                        @Override
1781                                        public void userInputRequired(
1782                                                PendingIntent pi, Contact contact) {
1783                                            startPendingIntent(pi, attachmentChoice);
1784                                        }
1785
1786                                        @Override
1787                                        public void success(Contact contact) {
1788                                            invokeAttachFileIntent(attachmentChoice);
1789                                        }
1790
1791                                        @Override
1792                                        public void error(int error, Contact contact) {
1793                                            activity.replaceToast(getString(error));
1794                                        }
1795                                    });
1796                } else if (mode == Conversation.MODE_MULTI
1797                        && conversation.getMucOptions().pgpKeysInUse()) {
1798                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1799                        Toast warning =
1800                                Toast.makeText(
1801                                        getActivity(),
1802                                        R.string.missing_public_keys,
1803                                        Toast.LENGTH_LONG);
1804                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1805                        warning.show();
1806                    }
1807                    invokeAttachFileIntent(attachmentChoice);
1808                } else {
1809                    showNoPGPKeyDialog(
1810                            false,
1811                            (dialog, which) -> {
1812                                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1813                                activity.xmppConnectionService.updateConversation(conversation);
1814                                invokeAttachFileIntent(attachmentChoice);
1815                            });
1816                }
1817            } else {
1818                activity.showInstallPgpDialog();
1819            }
1820        } else {
1821            invokeAttachFileIntent(attachmentChoice);
1822        }
1823    }
1824
1825    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1826        try {
1827            activity.getPreferences()
1828                    .edit()
1829                    .putString(
1830                            RECENTLY_USED_QUICK_ACTION,
1831                            SendButtonAction.of(attachmentChoice).toString())
1832                    .apply();
1833        } catch (IllegalArgumentException e) {
1834            // just do not save
1835        }
1836    }
1837
1838    @Override
1839    public void onRequestPermissionsResult(
1840            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1841        final PermissionUtils.PermissionResult permissionResult =
1842                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
1843        if (grantResults.length > 0) {
1844            if (allGranted(permissionResult.grantResults)) {
1845                switch (requestCode) {
1846                    case REQUEST_START_DOWNLOAD:
1847                        if (this.mPendingDownloadableMessage != null) {
1848                            startDownloadable(this.mPendingDownloadableMessage);
1849                        }
1850                        break;
1851                    case REQUEST_ADD_EDITOR_CONTENT:
1852                        if (this.mPendingEditorContent != null) {
1853                            attachEditorContentToConversation(this.mPendingEditorContent);
1854                        }
1855                        break;
1856                    case REQUEST_COMMIT_ATTACHMENTS:
1857                        commitAttachments();
1858                        break;
1859                    case REQUEST_START_AUDIO_CALL:
1860                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1861                        break;
1862                    case REQUEST_START_VIDEO_CALL:
1863                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1864                        break;
1865                    default:
1866                        attachFile(requestCode);
1867                        break;
1868                }
1869            } else {
1870                @StringRes int res;
1871                String firstDenied =
1872                        getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
1873                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1874                    res = R.string.no_microphone_permission;
1875                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1876                    res = R.string.no_camera_permission;
1877                } else {
1878                    res = R.string.no_storage_permission;
1879                }
1880                Toast.makeText(
1881                                getActivity(),
1882                                getString(res, getString(R.string.app_name)),
1883                                Toast.LENGTH_SHORT)
1884                        .show();
1885            }
1886        }
1887        if (writeGranted(grantResults, permissions)) {
1888            if (activity != null && activity.xmppConnectionService != null) {
1889                activity.xmppConnectionService.getBitmapCache().evictAll();
1890                activity.xmppConnectionService.restartFileObserver();
1891            }
1892            refresh();
1893        }
1894        if (cameraGranted(grantResults, permissions) || audioGranted(grantResults, permissions)) {
1895            XmppConnectionService.toggleForegroundService(activity);
1896        }
1897    }
1898
1899    public void startDownloadable(Message message) {
1900        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1901            this.mPendingDownloadableMessage = message;
1902            return;
1903        }
1904        Transferable transferable = message.getTransferable();
1905        if (transferable != null) {
1906            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1907                createNewConnection(message);
1908                return;
1909            }
1910            if (!transferable.start()) {
1911                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1912                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1913                        .show();
1914            }
1915        } else if (message.treatAsDownloadable()
1916                || message.hasFileOnRemoteHost()
1917                || MessageUtils.unInitiatedButKnownSize(message)) {
1918            createNewConnection(message);
1919        } else {
1920            Log.d(
1921                    Config.LOGTAG,
1922                    message.getConversation().getAccount() + ": unable to start downloadable");
1923        }
1924    }
1925
1926    private void createNewConnection(final Message message) {
1927        if (!activity.xmppConnectionService.hasInternetConnection()) {
1928            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1929                    .show();
1930            return;
1931        }
1932        activity.xmppConnectionService
1933                .getHttpConnectionManager()
1934                .createNewDownloadConnection(message, true);
1935    }
1936
1937    @SuppressLint("InflateParams")
1938    protected void clearHistoryDialog(final Conversation conversation) {
1939        final MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(requireActivity());
1940        builder.setTitle(R.string.clear_conversation_history);
1941        final View dialogView =
1942                requireActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1943        final CheckBox endConversationCheckBox =
1944                dialogView.findViewById(R.id.end_conversation_checkbox);
1945        builder.setView(dialogView);
1946        builder.setNegativeButton(getString(R.string.cancel), null);
1947        builder.setPositiveButton(
1948                getString(R.string.confirm),
1949                (dialog, which) -> {
1950                    this.activity.xmppConnectionService.clearConversationHistory(conversation);
1951                    if (endConversationCheckBox.isChecked()) {
1952                        this.activity.xmppConnectionService.archiveConversation(conversation);
1953                        this.activity.onConversationArchived(conversation);
1954                    } else {
1955                        activity.onConversationsListItemUpdated();
1956                        refresh();
1957                    }
1958                });
1959        builder.create().show();
1960    }
1961
1962    protected void muteConversationDialog(final Conversation conversation) {
1963        final MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(requireActivity());
1964        builder.setTitle(R.string.disable_notifications);
1965        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1966        final CharSequence[] labels = new CharSequence[durations.length];
1967        for (int i = 0; i < durations.length; ++i) {
1968            if (durations[i] == -1) {
1969                labels[i] = getString(R.string.until_further_notice);
1970            } else {
1971                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1972            }
1973        }
1974        builder.setItems(
1975                labels,
1976                (dialog, which) -> {
1977                    final long till;
1978                    if (durations[which] == -1) {
1979                        till = Long.MAX_VALUE;
1980                    } else {
1981                        till = System.currentTimeMillis() + (durations[which] * 1000L);
1982                    }
1983                    conversation.setMutedTill(till);
1984                    activity.xmppConnectionService.updateConversation(conversation);
1985                    activity.onConversationsListItemUpdated();
1986                    refresh();
1987                    requireActivity().invalidateOptionsMenu();
1988                });
1989        builder.create().show();
1990    }
1991
1992    private boolean hasPermissions(int requestCode, List<String> permissions) {
1993        final List<String> missingPermissions = new ArrayList<>();
1994        for (String permission : permissions) {
1995            if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU || Config.ONLY_INTERNAL_STORAGE) && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1996                continue;
1997            }
1998            if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1999                missingPermissions.add(permission);
2000            }
2001        }
2002        if (missingPermissions.size() == 0) {
2003            return true;
2004        } else {
2005            requestPermissions(
2006                    missingPermissions.toArray(new String[0]),
2007                    requestCode);
2008            return false;
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        final MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(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        final MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(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.dangerousFile(uri)) {
2632                iterator.remove();
2633                Toast.makeText(
2634                                requireActivity(),
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        this.binding.textSendButton.setIconResource(SendButtonTool.getSendButtonImageResource(action));
2927        this.binding.textSendButton.setIconTint(ColorStateList.valueOf(SendButtonTool.getSendButtonColor(this.binding.textSendButton, status)));
2928        // TODO send button color
2929        final Activity activity = getActivity();
2930        if (activity != null) {
2931        }
2932    }
2933
2934    protected void updateStatusMessages() {
2935        DateSeparator.addAll(this.messageList);
2936        if (showLoadMoreMessages(conversation)) {
2937            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2938        }
2939        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2940            ChatState state = conversation.getIncomingChatState();
2941            if (state == ChatState.COMPOSING) {
2942                this.messageList.add(
2943                        Message.createStatusMessage(
2944                                conversation,
2945                                getString(R.string.contact_is_typing, conversation.getName())));
2946            } else if (state == ChatState.PAUSED) {
2947                this.messageList.add(
2948                        Message.createStatusMessage(
2949                                conversation,
2950                                getString(
2951                                        R.string.contact_has_stopped_typing,
2952                                        conversation.getName())));
2953            } else {
2954                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2955                    final Message message = this.messageList.get(i);
2956                    if (message.getType() != Message.TYPE_STATUS) {
2957                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2958                            return;
2959                        } else {
2960                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2961                                this.messageList.add(
2962                                        i + 1,
2963                                        Message.createStatusMessage(
2964                                                conversation,
2965                                                getString(
2966                                                        R.string.contact_has_read_up_to_this_point,
2967                                                        conversation.getName())));
2968                                return;
2969                            }
2970                        }
2971                    }
2972                }
2973            }
2974        } else {
2975            final MucOptions mucOptions = conversation.getMucOptions();
2976            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2977            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2978            ChatState state = ChatState.COMPOSING;
2979            List<MucOptions.User> users =
2980                    conversation.getMucOptions().getUsersWithChatState(state, 5);
2981            if (users.size() == 0) {
2982                state = ChatState.PAUSED;
2983                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2984            }
2985            if (mucOptions.isPrivateAndNonAnonymous()) {
2986                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2987                    final Set<ReadByMarker> markersForMessage =
2988                            messageList.get(i).getReadByMarkers();
2989                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2990                    for (ReadByMarker marker : markersForMessage) {
2991                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2992                            addedMarkers.add(
2993                                    marker); // may be put outside this condition. set should do
2994                                             // dedup anyway
2995                            MucOptions.User user = mucOptions.findUser(marker);
2996                            if (user != null && !users.contains(user)) {
2997                                shownMarkers.add(user);
2998                            }
2999                        }
3000                    }
3001                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
3002                    final Message statusMessage;
3003                    final int size = shownMarkers.size();
3004                    if (size > 1) {
3005                        final String body;
3006                        if (size <= 4) {
3007                            body =
3008                                    getString(
3009                                            R.string.contacts_have_read_up_to_this_point,
3010                                            UIHelper.concatNames(shownMarkers));
3011                        } else if (ReadByMarker.allUsersRepresented(
3012                                allUsers, markersForMessage, markerForSender)) {
3013                            body = getString(R.string.everyone_has_read_up_to_this_point);
3014                        } else {
3015                            body =
3016                                    getString(
3017                                            R.string.contacts_and_n_more_have_read_up_to_this_point,
3018                                            UIHelper.concatNames(shownMarkers, 3),
3019                                            size - 3);
3020                        }
3021                        statusMessage = Message.createStatusMessage(conversation, body);
3022                        statusMessage.setCounterparts(shownMarkers);
3023                    } else if (size == 1) {
3024                        statusMessage =
3025                                Message.createStatusMessage(
3026                                        conversation,
3027                                        getString(
3028                                                R.string.contact_has_read_up_to_this_point,
3029                                                UIHelper.getDisplayName(shownMarkers.get(0))));
3030                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
3031                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
3032                    } else {
3033                        statusMessage = null;
3034                    }
3035                    if (statusMessage != null) {
3036                        this.messageList.add(i + 1, statusMessage);
3037                    }
3038                    addedMarkers.add(markerForSender);
3039                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
3040                        break;
3041                    }
3042                }
3043            }
3044            if (users.size() > 0) {
3045                Message statusMessage;
3046                if (users.size() == 1) {
3047                    MucOptions.User user = users.get(0);
3048                    int id =
3049                            state == ChatState.COMPOSING
3050                                    ? R.string.contact_is_typing
3051                                    : R.string.contact_has_stopped_typing;
3052                    statusMessage =
3053                            Message.createStatusMessage(
3054                                    conversation, getString(id, UIHelper.getDisplayName(user)));
3055                    statusMessage.setTrueCounterpart(user.getRealJid());
3056                    statusMessage.setCounterpart(user.getFullJid());
3057                } else {
3058                    int id =
3059                            state == ChatState.COMPOSING
3060                                    ? R.string.contacts_are_typing
3061                                    : R.string.contacts_have_stopped_typing;
3062                    statusMessage =
3063                            Message.createStatusMessage(
3064                                    conversation, getString(id, UIHelper.concatNames(users)));
3065                    statusMessage.setCounterparts(users);
3066                }
3067                this.messageList.add(statusMessage);
3068            }
3069        }
3070    }
3071
3072    private void stopScrolling() {
3073        long now = SystemClock.uptimeMillis();
3074        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
3075        binding.messagesView.dispatchTouchEvent(cancel);
3076    }
3077
3078    private boolean showLoadMoreMessages(final Conversation c) {
3079        if (activity == null || activity.xmppConnectionService == null) {
3080            return false;
3081        }
3082        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
3083        final MessageArchiveService service =
3084                activity.xmppConnectionService.getMessageArchiveService();
3085        return mam
3086                && (c.getLastClearHistory().getTimestamp() != 0
3087                        || (c.countMessages() == 0
3088                                && c.messagesLoaded.get()
3089                                && c.hasMessagesLeftOnServer()
3090                                && !service.queryInProgress(c)));
3091    }
3092
3093    private boolean hasMamSupport(final Conversation c) {
3094        if (c.getMode() == Conversation.MODE_SINGLE) {
3095            final XmppConnection connection = c.getAccount().getXmppConnection();
3096            return connection != null && connection.getFeatures().mam();
3097        } else {
3098            return c.getMucOptions().mamSupport();
3099        }
3100    }
3101
3102    protected void showSnackbar(
3103            final int message, final int action, final OnClickListener clickListener) {
3104        showSnackbar(message, action, clickListener, null);
3105    }
3106
3107    protected void showSnackbar(
3108            final int message,
3109            final int action,
3110            final OnClickListener clickListener,
3111            final View.OnLongClickListener longClickListener) {
3112        this.binding.snackbar.setVisibility(View.VISIBLE);
3113        this.binding.snackbar.setOnClickListener(null);
3114        this.binding.snackbarMessage.setText(message);
3115        this.binding.snackbarMessage.setOnClickListener(null);
3116        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
3117        if (action != 0) {
3118            this.binding.snackbarAction.setText(action);
3119        }
3120        this.binding.snackbarAction.setOnClickListener(clickListener);
3121        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
3122    }
3123
3124    protected void hideSnackbar() {
3125        this.binding.snackbar.setVisibility(View.GONE);
3126    }
3127
3128    protected void sendMessage(Message message) {
3129        activity.xmppConnectionService.sendMessage(message);
3130        messageSent();
3131    }
3132
3133    protected void sendPgpMessage(final Message message) {
3134        final XmppConnectionService xmppService = activity.xmppConnectionService;
3135        final Contact contact = message.getConversation().getContact();
3136        if (!activity.hasPgp()) {
3137            activity.showInstallPgpDialog();
3138            return;
3139        }
3140        if (conversation.getAccount().getPgpSignature() == null) {
3141            activity.announcePgp(
3142                    conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
3143            return;
3144        }
3145        if (!mSendingPgpMessage.compareAndSet(false, true)) {
3146            Log.d(Config.LOGTAG, "sending pgp message already in progress");
3147        }
3148        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3149            if (contact.getPgpKeyId() != 0) {
3150                xmppService
3151                        .getPgpEngine()
3152                        .hasKey(
3153                                contact,
3154                                new UiCallback<Contact>() {
3155
3156                                    @Override
3157                                    public void userInputRequired(
3158                                            PendingIntent pi, Contact contact) {
3159                                        startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
3160                                    }
3161
3162                                    @Override
3163                                    public void success(Contact contact) {
3164                                        encryptTextMessage(message);
3165                                    }
3166
3167                                    @Override
3168                                    public void error(int error, Contact contact) {
3169                                        activity.runOnUiThread(
3170                                                () ->
3171                                                        Toast.makeText(
3172                                                                        activity,
3173                                                                        R.string
3174                                                                                .unable_to_connect_to_keychain,
3175                                                                        Toast.LENGTH_SHORT)
3176                                                                .show());
3177                                        mSendingPgpMessage.set(false);
3178                                    }
3179                                });
3180
3181            } else {
3182                showNoPGPKeyDialog(
3183                        false,
3184                        (dialog, which) -> {
3185                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3186                            xmppService.updateConversation(conversation);
3187                            message.setEncryption(Message.ENCRYPTION_NONE);
3188                            xmppService.sendMessage(message);
3189                            messageSent();
3190                        });
3191            }
3192        } else {
3193            if (conversation.getMucOptions().pgpKeysInUse()) {
3194                if (!conversation.getMucOptions().everybodyHasKeys()) {
3195                    Toast warning =
3196                            Toast.makeText(
3197                                    getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
3198                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
3199                    warning.show();
3200                }
3201                encryptTextMessage(message);
3202            } else {
3203                showNoPGPKeyDialog(
3204                        true,
3205                        (dialog, which) -> {
3206                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3207                            message.setEncryption(Message.ENCRYPTION_NONE);
3208                            xmppService.updateConversation(conversation);
3209                            xmppService.sendMessage(message);
3210                            messageSent();
3211                        });
3212            }
3213        }
3214    }
3215
3216    public void encryptTextMessage(Message message) {
3217        activity.xmppConnectionService
3218                .getPgpEngine()
3219                .encrypt(
3220                        message,
3221                        new UiCallback<Message>() {
3222
3223                            @Override
3224                            public void userInputRequired(PendingIntent pi, Message message) {
3225                                startPendingIntent(pi, REQUEST_SEND_MESSAGE);
3226                            }
3227
3228                            @Override
3229                            public void success(Message message) {
3230                                // TODO the following two call can be made before the callback
3231                                getActivity().runOnUiThread(() -> messageSent());
3232                            }
3233
3234                            @Override
3235                            public void error(final int error, Message message) {
3236                                getActivity()
3237                                        .runOnUiThread(
3238                                                () -> {
3239                                                    doneSendingPgpMessage();
3240                                                    Toast.makeText(
3241                                                                    getActivity(),
3242                                                                    error == 0
3243                                                                            ? R.string
3244                                                                                    .unable_to_connect_to_keychain
3245                                                                            : error,
3246                                                                    Toast.LENGTH_SHORT)
3247                                                            .show();
3248                                                });
3249                            }
3250                        });
3251    }
3252
3253    public void showNoPGPKeyDialog(final boolean plural, final DialogInterface.OnClickListener listener) {
3254        final MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(requireActivity());
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}