ConversationFragment.java

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