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