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        binding.conversationViewPager.setAdapter(new StaticPagerAdapter(
1247            binding.conversationViewPager
1248        ));
1249        binding.tabLayout.setupWithViewPager(binding.conversationViewPager);
1250        binding.conversationViewPager.setCurrentItem(conversation.getCurrentTab());
1251
1252        commandAdapter = new CommandAdapter((XmppActivity) getActivity());
1253        binding.commandsView.setAdapter(commandAdapter);
1254        Jid commandJid = conversation.getContact().resourceWhichSupport(Namespace.COMMANDS);
1255        if (commandJid != null) {
1256            binding.tabLayout.setVisibility(View.VISIBLE);
1257            activity.xmppConnectionService.fetchCommands(conversation.getAccount(), commandJid, (a, iq) -> {
1258                if (iq.getType() == IqPacket.TYPE.RESULT) {
1259                    activity.runOnUiThread(() -> {
1260                        for (Element child : iq.query().getChildren()) {
1261                            if (!"item".equals(child.getName()) || !Namespace.DISCO_ITEMS.equals(child.getNamespace())) continue;
1262                            commandAdapter.add(child);
1263                        }
1264                    });
1265                } else {
1266                    binding.tabLayout.setVisibility(View.GONE);
1267                    binding.conversationViewPager.setCurrentItem(0);
1268                }
1269            });
1270        }
1271
1272        return binding.getRoot();
1273    }
1274
1275    @Override
1276    public void onDestroyView() {
1277        super.onDestroyView();
1278        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1279        messageListAdapter.setOnContactPictureClicked(null);
1280        messageListAdapter.setOnContactPictureLongClicked(null);
1281    }
1282
1283    private void quoteText(String text) {
1284        if (binding.textinput.isEnabled()) {
1285            binding.textinput.insertAsQuote(text);
1286            binding.textinput.requestFocus();
1287            InputMethodManager inputMethodManager =
1288                    (InputMethodManager)
1289                            getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1290            if (inputMethodManager != null) {
1291                inputMethodManager.showSoftInput(
1292                        binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1293            }
1294        }
1295    }
1296
1297    private void quoteMessage(Message message) {
1298        quoteText(MessageUtils.prepareQuote(message));
1299    }
1300
1301    @Override
1302    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1303        // This should cancel any remaining click events that would otherwise trigger links
1304        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1305        synchronized (this.messageList) {
1306            super.onCreateContextMenu(menu, v, menuInfo);
1307            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1308            this.selectedMessage = this.messageList.get(acmi.position);
1309            populateContextMenu(menu);
1310        }
1311    }
1312
1313    private void populateContextMenu(ContextMenu menu) {
1314        final Message m = this.selectedMessage;
1315        final Transferable t = m.getTransferable();
1316        Message relevantForCorrection = m;
1317        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1318            relevantForCorrection = relevantForCorrection.next();
1319        }
1320        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1321
1322            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE
1323                    || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1324                return;
1325            }
1326
1327            if (m.getStatus() == Message.STATUS_RECEIVED
1328                    && t != null
1329                    && (t.getStatus() == Transferable.STATUS_CANCELLED
1330                            || t.getStatus() == Transferable.STATUS_FAILED)) {
1331                return;
1332            }
1333
1334            final boolean deleted = m.isDeleted();
1335            final boolean encrypted =
1336                    m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1337                            || m.getEncryption() == Message.ENCRYPTION_PGP;
1338            final boolean receiving =
1339                    m.getStatus() == Message.STATUS_RECEIVED
1340                            && (t instanceof JingleFileTransferConnection
1341                                    || t instanceof HttpDownloadConnection);
1342            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1343            menu.setHeaderTitle(R.string.message_options);
1344            MenuItem openWith = menu.findItem(R.id.open_with);
1345            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1346            MenuItem copyLink = menu.findItem(R.id.copy_link);
1347            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1348            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1349            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1350            MenuItem shareWith = menu.findItem(R.id.share_with);
1351            MenuItem sendAgain = menu.findItem(R.id.send_again);
1352            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1353            MenuItem downloadFile = menu.findItem(R.id.download_file);
1354            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1355            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1356            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1357            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1358            final boolean showError =
1359                    m.getStatus() == Message.STATUS_SEND_FAILED
1360                            && m.getErrorMessage() != null
1361                            && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1362            if (!m.isFileOrImage()
1363                    && !encrypted
1364                    && !m.isGeoUri()
1365                    && !m.treatAsDownloadable()
1366                    && !unInitiatedButKnownSize
1367                    && t == null) {
1368                copyMessage.setVisible(true);
1369                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1370                String body = m.getMergedBody().toString();
1371                if (ShareUtil.containsXmppUri(body)) {
1372                    copyLink.setTitle(R.string.copy_jabber_id);
1373                    copyLink.setVisible(true);
1374                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1375                    copyLink.setVisible(true);
1376                }
1377            }
1378            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1379                retryDecryption.setVisible(true);
1380            }
1381            if (!showError
1382                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1383                    && !m.isGeoUri()
1384                    && relevantForCorrection.isLastCorrectableMessage()
1385                    && m.getConversation() instanceof Conversation) {
1386                correctMessage.setVisible(true);
1387            }
1388            if ((m.isFileOrImage() && !deleted && !receiving)
1389                    || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())
1390                            && !unInitiatedButKnownSize
1391                            && t == null) {
1392                shareWith.setVisible(true);
1393            }
1394            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1395                sendAgain.setVisible(true);
1396            }
1397            if (m.hasFileOnRemoteHost()
1398                    || m.isGeoUri()
1399                    || m.treatAsDownloadable()
1400                    || unInitiatedButKnownSize
1401                    || t instanceof HttpDownloadConnection) {
1402                copyUrl.setVisible(true);
1403            }
1404            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1405                downloadFile.setVisible(true);
1406                downloadFile.setTitle(
1407                        activity.getString(
1408                                R.string.download_x_file,
1409                                UIHelper.getFileDescriptionString(activity, m)));
1410            }
1411            final boolean waitingOfferedSending =
1412                    m.getStatus() == Message.STATUS_WAITING
1413                            || m.getStatus() == Message.STATUS_UNSEND
1414                            || m.getStatus() == Message.STATUS_OFFERED;
1415            final boolean cancelable =
1416                    (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1417            if (cancelable) {
1418                cancelTransmission.setVisible(true);
1419            }
1420            if (m.isFileOrImage() && !deleted && !cancelable) {
1421                final String path = m.getRelativeFilePath();
1422                if (path == null
1423                        || !path.startsWith("/")
1424                        || FileBackend.inConversationsDirectory(requireActivity(), path)) {
1425                    deleteFile.setVisible(true);
1426                    deleteFile.setTitle(
1427                            activity.getString(
1428                                    R.string.delete_x_file,
1429                                    UIHelper.getFileDescriptionString(activity, m)));
1430                }
1431            }
1432            if (showError) {
1433                showErrorMessage.setVisible(true);
1434            }
1435            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1436            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m))
1437                    || (mime != null && mime.startsWith("audio/"))) {
1438                openWith.setVisible(true);
1439            }
1440        }
1441    }
1442
1443    @Override
1444    public boolean onContextItemSelected(MenuItem item) {
1445        switch (item.getItemId()) {
1446            case R.id.share_with:
1447                ShareUtil.share(activity, selectedMessage);
1448                return true;
1449            case R.id.correct_message:
1450                correctMessage(selectedMessage);
1451                return true;
1452            case R.id.copy_message:
1453                ShareUtil.copyToClipboard(activity, selectedMessage);
1454                return true;
1455            case R.id.copy_link:
1456                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1457                return true;
1458            case R.id.quote_message:
1459                quoteMessage(selectedMessage);
1460                return true;
1461            case R.id.send_again:
1462                resendMessage(selectedMessage);
1463                return true;
1464            case R.id.copy_url:
1465                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1466                return true;
1467            case R.id.download_file:
1468                startDownloadable(selectedMessage);
1469                return true;
1470            case R.id.cancel_transmission:
1471                cancelTransmission(selectedMessage);
1472                return true;
1473            case R.id.retry_decryption:
1474                retryDecryption(selectedMessage);
1475                return true;
1476            case R.id.delete_file:
1477                deleteFile(selectedMessage);
1478                return true;
1479            case R.id.show_error_message:
1480                showErrorMessage(selectedMessage);
1481                return true;
1482            case R.id.open_with:
1483                openWith(selectedMessage);
1484                return true;
1485            default:
1486                return super.onContextItemSelected(item);
1487        }
1488    }
1489
1490    @Override
1491    public boolean onOptionsItemSelected(final MenuItem item) {
1492        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1493            return false;
1494        } else if (conversation == null) {
1495            return super.onOptionsItemSelected(item);
1496        }
1497        switch (item.getItemId()) {
1498            case R.id.encryption_choice_axolotl:
1499            case R.id.encryption_choice_pgp:
1500            case R.id.encryption_choice_none:
1501                handleEncryptionSelection(item);
1502                break;
1503            case R.id.attach_choose_picture:
1504            case R.id.attach_take_picture:
1505            case R.id.attach_record_video:
1506            case R.id.attach_choose_file:
1507            case R.id.attach_record_voice:
1508            case R.id.attach_location:
1509                handleAttachmentSelection(item);
1510                break;
1511            case R.id.action_search:
1512                startSearch();
1513                break;
1514            case R.id.action_archive:
1515                activity.xmppConnectionService.archiveConversation(conversation);
1516                break;
1517            case R.id.action_contact_details:
1518                activity.switchToContactDetails(conversation.getContact());
1519                break;
1520            case R.id.action_muc_details:
1521                ConferenceDetailsActivity.open(getActivity(), conversation);
1522                break;
1523            case R.id.action_invite:
1524                startActivityForResult(
1525                        ChooseContactActivity.create(activity, conversation),
1526                        REQUEST_INVITE_TO_CONVERSATION);
1527                break;
1528            case R.id.action_clear_history:
1529                clearHistoryDialog(conversation);
1530                break;
1531            case R.id.action_mute:
1532                muteConversationDialog(conversation);
1533                break;
1534            case R.id.action_unmute:
1535                unMuteConversation(conversation);
1536                break;
1537            case R.id.action_block:
1538            case R.id.action_unblock:
1539                final Activity activity = getActivity();
1540                if (activity instanceof XmppActivity) {
1541                    BlockContactDialog.show((XmppActivity) activity, conversation);
1542                }
1543                break;
1544            case R.id.action_audio_call:
1545                checkPermissionAndTriggerAudioCall();
1546                break;
1547            case R.id.action_video_call:
1548                checkPermissionAndTriggerVideoCall();
1549                break;
1550            case R.id.action_ongoing_call:
1551                returnToOngoingCall();
1552                break;
1553            case R.id.action_toggle_pinned:
1554                togglePinned();
1555                break;
1556            default:
1557                break;
1558        }
1559        return super.onOptionsItemSelected(item);
1560    }
1561
1562    private void startSearch() {
1563        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1564        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1565        startActivity(intent);
1566    }
1567
1568    private void returnToOngoingCall() {
1569        final Optional<OngoingRtpSession> ongoingRtpSession =
1570                activity.xmppConnectionService
1571                        .getJingleConnectionManager()
1572                        .getOngoingRtpConnection(conversation.getContact());
1573        if (ongoingRtpSession.isPresent()) {
1574            final OngoingRtpSession id = ongoingRtpSession.get();
1575            final Intent intent = new Intent(activity, RtpSessionActivity.class);
1576            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1577            intent.putExtra(
1578                    RtpSessionActivity.EXTRA_ACCOUNT,
1579                    id.getAccount().getJid().asBareJid().toEscapedString());
1580            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1581            if (id instanceof AbstractJingleConnection.Id) {
1582                intent.setAction(Intent.ACTION_VIEW);
1583                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1584            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1585                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1586                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1587                } else {
1588                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1589                }
1590            }
1591            activity.startActivity(intent);
1592        }
1593    }
1594
1595    private void togglePinned() {
1596        final boolean pinned =
1597                conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1598        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1599        activity.xmppConnectionService.updateConversation(conversation);
1600        activity.invalidateOptionsMenu();
1601    }
1602
1603    private void checkPermissionAndTriggerAudioCall() {
1604        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1605            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1606            return;
1607        }
1608        final List<String> permissions;
1609        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1610            permissions =
1611                    Arrays.asList(
1612                            Manifest.permission.RECORD_AUDIO,
1613                            Manifest.permission.BLUETOOTH_CONNECT);
1614        } else {
1615            permissions = Collections.singletonList(Manifest.permission.RECORD_AUDIO);
1616        }
1617        if (hasPermissions(REQUEST_START_AUDIO_CALL, permissions)) {
1618            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1619        }
1620    }
1621
1622    private void checkPermissionAndTriggerVideoCall() {
1623        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1624            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1625            return;
1626        }
1627        final List<String> permissions;
1628        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1629            permissions =
1630                    Arrays.asList(
1631                            Manifest.permission.RECORD_AUDIO,
1632                            Manifest.permission.CAMERA,
1633                            Manifest.permission.BLUETOOTH_CONNECT);
1634        } else {
1635            permissions =
1636                    Arrays.asList(Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA);
1637        }
1638        if (hasPermissions(REQUEST_START_VIDEO_CALL, permissions)) {
1639            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1640        }
1641    }
1642
1643    private void triggerRtpSession(final String action) {
1644        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy() != null) {
1645            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG)
1646                    .show();
1647            return;
1648        }
1649        final Contact contact = conversation.getContact();
1650        if (contact.getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1651            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1652        } else {
1653            final RtpCapability.Capability capability;
1654            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1655                capability = RtpCapability.Capability.VIDEO;
1656            } else {
1657                capability = RtpCapability.Capability.AUDIO;
1658            }
1659            PresenceSelector.selectFullJidForDirectRtpConnection(
1660                    activity,
1661                    contact,
1662                    capability,
1663                    fullJid -> {
1664                        triggerRtpSession(contact.getAccount(), fullJid, action);
1665                    });
1666        }
1667    }
1668
1669    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1670        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1671        intent.setAction(action);
1672        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1673        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1674        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1675        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1676        startActivity(intent);
1677    }
1678
1679    private void handleAttachmentSelection(MenuItem item) {
1680        switch (item.getItemId()) {
1681            case R.id.attach_choose_picture:
1682                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1683                break;
1684            case R.id.attach_take_picture:
1685                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1686                break;
1687            case R.id.attach_record_video:
1688                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1689                break;
1690            case R.id.attach_choose_file:
1691                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1692                break;
1693            case R.id.attach_record_voice:
1694                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1695                break;
1696            case R.id.attach_location:
1697                attachFile(ATTACHMENT_CHOICE_LOCATION);
1698                break;
1699        }
1700    }
1701
1702    private void handleEncryptionSelection(MenuItem item) {
1703        if (conversation == null) {
1704            return;
1705        }
1706        final boolean updated;
1707        switch (item.getItemId()) {
1708            case R.id.encryption_choice_none:
1709                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1710                item.setChecked(true);
1711                break;
1712            case R.id.encryption_choice_pgp:
1713                if (activity.hasPgp()) {
1714                    if (conversation.getAccount().getPgpSignature() != null) {
1715                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1716                        item.setChecked(true);
1717                    } else {
1718                        updated = false;
1719                        activity.announcePgp(
1720                                conversation.getAccount(),
1721                                conversation,
1722                                null,
1723                                activity.onOpenPGPKeyPublished);
1724                    }
1725                } else {
1726                    activity.showInstallPgpDialog();
1727                    updated = false;
1728                }
1729                break;
1730            case R.id.encryption_choice_axolotl:
1731                Log.d(
1732                        Config.LOGTAG,
1733                        AxolotlService.getLogprefix(conversation.getAccount())
1734                                + "Enabled axolotl for Contact "
1735                                + conversation.getContact().getJid());
1736                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1737                item.setChecked(true);
1738                break;
1739            default:
1740                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1741                break;
1742        }
1743        if (updated) {
1744            activity.xmppConnectionService.updateConversation(conversation);
1745        }
1746        updateChatMsgHint();
1747        getActivity().invalidateOptionsMenu();
1748        activity.refreshUi();
1749    }
1750
1751    public void attachFile(final int attachmentChoice) {
1752        attachFile(attachmentChoice, true);
1753    }
1754
1755    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1756        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1757            if (!hasPermissions(
1758                    attachmentChoice,
1759                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1760                    Manifest.permission.RECORD_AUDIO)) {
1761                return;
1762            }
1763        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO
1764                || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1765            if (!hasPermissions(
1766                    attachmentChoice,
1767                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1768                    Manifest.permission.CAMERA)) {
1769                return;
1770            }
1771        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1772            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1773                return;
1774            }
1775        }
1776        if (updateRecentlyUsed) {
1777            storeRecentlyUsedQuickAction(attachmentChoice);
1778        }
1779        final int encryption = conversation.getNextEncryption();
1780        final int mode = conversation.getMode();
1781        if (encryption == Message.ENCRYPTION_PGP) {
1782            if (activity.hasPgp()) {
1783                if (mode == Conversation.MODE_SINGLE
1784                        && conversation.getContact().getPgpKeyId() != 0) {
1785                    activity.xmppConnectionService
1786                            .getPgpEngine()
1787                            .hasKey(
1788                                    conversation.getContact(),
1789                                    new UiCallback<Contact>() {
1790
1791                                        @Override
1792                                        public void userInputRequired(
1793                                                PendingIntent pi, Contact contact) {
1794                                            startPendingIntent(pi, attachmentChoice);
1795                                        }
1796
1797                                        @Override
1798                                        public void success(Contact contact) {
1799                                            invokeAttachFileIntent(attachmentChoice);
1800                                        }
1801
1802                                        @Override
1803                                        public void error(int error, Contact contact) {
1804                                            activity.replaceToast(getString(error));
1805                                        }
1806                                    });
1807                } else if (mode == Conversation.MODE_MULTI
1808                        && conversation.getMucOptions().pgpKeysInUse()) {
1809                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1810                        Toast warning =
1811                                Toast.makeText(
1812                                        getActivity(),
1813                                        R.string.missing_public_keys,
1814                                        Toast.LENGTH_LONG);
1815                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1816                        warning.show();
1817                    }
1818                    invokeAttachFileIntent(attachmentChoice);
1819                } else {
1820                    showNoPGPKeyDialog(
1821                            false,
1822                            (dialog, which) -> {
1823                                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1824                                activity.xmppConnectionService.updateConversation(conversation);
1825                                invokeAttachFileIntent(attachmentChoice);
1826                            });
1827                }
1828            } else {
1829                activity.showInstallPgpDialog();
1830            }
1831        } else {
1832            invokeAttachFileIntent(attachmentChoice);
1833        }
1834    }
1835
1836    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1837        try {
1838            activity.getPreferences()
1839                    .edit()
1840                    .putString(
1841                            RECENTLY_USED_QUICK_ACTION,
1842                            SendButtonAction.of(attachmentChoice).toString())
1843                    .apply();
1844        } catch (IllegalArgumentException e) {
1845            // just do not save
1846        }
1847    }
1848
1849    @Override
1850    public void onRequestPermissionsResult(
1851            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1852        final PermissionUtils.PermissionResult permissionResult =
1853                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
1854        if (grantResults.length > 0) {
1855            if (allGranted(permissionResult.grantResults)) {
1856                switch (requestCode) {
1857                    case REQUEST_START_DOWNLOAD:
1858                        if (this.mPendingDownloadableMessage != null) {
1859                            startDownloadable(this.mPendingDownloadableMessage);
1860                        }
1861                        break;
1862                    case REQUEST_ADD_EDITOR_CONTENT:
1863                        if (this.mPendingEditorContent != null) {
1864                            attachEditorContentToConversation(this.mPendingEditorContent);
1865                        }
1866                        break;
1867                    case REQUEST_COMMIT_ATTACHMENTS:
1868                        commitAttachments();
1869                        break;
1870                    case REQUEST_START_AUDIO_CALL:
1871                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1872                        break;
1873                    case REQUEST_START_VIDEO_CALL:
1874                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1875                        break;
1876                    default:
1877                        attachFile(requestCode);
1878                        break;
1879                }
1880            } else {
1881                @StringRes int res;
1882                String firstDenied =
1883                        getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
1884                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1885                    res = R.string.no_microphone_permission;
1886                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1887                    res = R.string.no_camera_permission;
1888                } else {
1889                    res = R.string.no_storage_permission;
1890                }
1891                Toast.makeText(
1892                                getActivity(),
1893                                getString(res, getString(R.string.app_name)),
1894                                Toast.LENGTH_SHORT)
1895                        .show();
1896            }
1897        }
1898        if (writeGranted(grantResults, permissions)) {
1899            if (activity != null && activity.xmppConnectionService != null) {
1900                activity.xmppConnectionService.getBitmapCache().evictAll();
1901                activity.xmppConnectionService.restartFileObserver();
1902            }
1903            refresh();
1904        }
1905    }
1906
1907    public void startDownloadable(Message message) {
1908        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1909            this.mPendingDownloadableMessage = message;
1910            return;
1911        }
1912        Transferable transferable = message.getTransferable();
1913        if (transferable != null) {
1914            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1915                createNewConnection(message);
1916                return;
1917            }
1918            if (!transferable.start()) {
1919                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1920                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1921                        .show();
1922            }
1923        } else if (message.treatAsDownloadable()
1924                || message.hasFileOnRemoteHost()
1925                || MessageUtils.unInitiatedButKnownSize(message)) {
1926            createNewConnection(message);
1927        } else {
1928            Log.d(
1929                    Config.LOGTAG,
1930                    message.getConversation().getAccount() + ": unable to start downloadable");
1931        }
1932    }
1933
1934    private void createNewConnection(final Message message) {
1935        if (!activity.xmppConnectionService.hasInternetConnection()) {
1936            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1937                    .show();
1938            return;
1939        }
1940        activity.xmppConnectionService
1941                .getHttpConnectionManager()
1942                .createNewDownloadConnection(message, true);
1943    }
1944
1945    @SuppressLint("InflateParams")
1946    protected void clearHistoryDialog(final Conversation conversation) {
1947        final AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
1948        builder.setTitle(getString(R.string.clear_conversation_history));
1949        final View dialogView =
1950                requireActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1951        final CheckBox endConversationCheckBox =
1952                dialogView.findViewById(R.id.end_conversation_checkbox);
1953        builder.setView(dialogView);
1954        builder.setNegativeButton(getString(R.string.cancel), null);
1955        builder.setPositiveButton(
1956                getString(R.string.confirm),
1957                (dialog, which) -> {
1958                    this.activity.xmppConnectionService.clearConversationHistory(conversation);
1959                    if (endConversationCheckBox.isChecked()) {
1960                        this.activity.xmppConnectionService.archiveConversation(conversation);
1961                        this.activity.onConversationArchived(conversation);
1962                    } else {
1963                        activity.onConversationsListItemUpdated();
1964                        refresh();
1965                    }
1966                });
1967        builder.create().show();
1968    }
1969
1970    protected void muteConversationDialog(final Conversation conversation) {
1971        final AlertDialog.Builder builder = new AlertDialog.Builder(activity);
1972        builder.setTitle(R.string.disable_notifications);
1973        final int[] durations = activity.getResources().getIntArray(R.array.mute_options_durations);
1974        final CharSequence[] labels = new CharSequence[durations.length];
1975        for (int i = 0; i < durations.length; ++i) {
1976            if (durations[i] == -1) {
1977                labels[i] = activity.getString(R.string.until_further_notice);
1978            } else {
1979                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1980            }
1981        }
1982        builder.setItems(
1983                labels,
1984                (dialog, which) -> {
1985                    final long till;
1986                    if (durations[which] == -1) {
1987                        till = Long.MAX_VALUE;
1988                    } else {
1989                        till = System.currentTimeMillis() + (durations[which] * 1000L);
1990                    }
1991                    conversation.setMutedTill(till);
1992                    activity.xmppConnectionService.updateConversation(conversation);
1993                    activity.onConversationsListItemUpdated();
1994                    refresh();
1995                    activity.invalidateOptionsMenu();
1996                });
1997        builder.create().show();
1998    }
1999
2000    private boolean hasPermissions(int requestCode, List<String> permissions) {
2001        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
2002            final List<String> missingPermissions = new ArrayList<>();
2003            for (String permission : permissions) {
2004                if (Config.ONLY_INTERNAL_STORAGE
2005                        && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2006                    continue;
2007                }
2008                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
2009                    missingPermissions.add(permission);
2010                }
2011            }
2012            if (missingPermissions.size() == 0) {
2013                return true;
2014            } else {
2015                requestPermissions(
2016                        missingPermissions.toArray(new String[0]),
2017                        requestCode);
2018                return false;
2019            }
2020        } else {
2021            return true;
2022        }
2023    }
2024
2025    private boolean hasPermissions(int requestCode, String... permissions) {
2026        return hasPermissions(requestCode, ImmutableList.copyOf(permissions));
2027    }
2028
2029    public void unMuteConversation(final Conversation conversation) {
2030        conversation.setMutedTill(0);
2031        this.activity.xmppConnectionService.updateConversation(conversation);
2032        this.activity.onConversationsListItemUpdated();
2033        refresh();
2034        this.activity.invalidateOptionsMenu();
2035    }
2036
2037    protected void invokeAttachFileIntent(final int attachmentChoice) {
2038        Intent intent = new Intent();
2039        boolean chooser = false;
2040        switch (attachmentChoice) {
2041            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
2042                intent.setAction(Intent.ACTION_GET_CONTENT);
2043                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2044                intent.setType("image/*");
2045                chooser = true;
2046                break;
2047            case ATTACHMENT_CHOICE_RECORD_VIDEO:
2048                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
2049                break;
2050            case ATTACHMENT_CHOICE_TAKE_PHOTO:
2051                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
2052                pendingTakePhotoUri.push(uri);
2053                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
2054                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
2055                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
2056                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
2057                break;
2058            case ATTACHMENT_CHOICE_CHOOSE_FILE:
2059                chooser = true;
2060                intent.setType("*/*");
2061                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2062                intent.addCategory(Intent.CATEGORY_OPENABLE);
2063                intent.setAction(Intent.ACTION_GET_CONTENT);
2064                break;
2065            case ATTACHMENT_CHOICE_RECORD_VOICE:
2066                intent = new Intent(getActivity(), RecordingActivity.class);
2067                break;
2068            case ATTACHMENT_CHOICE_LOCATION:
2069                intent = GeoHelper.getFetchIntent(activity);
2070                break;
2071        }
2072        final Context context = getActivity();
2073        if (context == null) {
2074            return;
2075        }
2076        try {
2077            if (chooser) {
2078                startActivityForResult(
2079                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
2080                        attachmentChoice);
2081            } else {
2082                startActivityForResult(intent, attachmentChoice);
2083            }
2084        } catch (final ActivityNotFoundException e) {
2085            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
2086        }
2087    }
2088
2089    @Override
2090    public void onResume() {
2091        super.onResume();
2092        binding.messagesView.post(this::fireReadEvent);
2093    }
2094
2095    private void fireReadEvent() {
2096        if (activity != null && this.conversation != null) {
2097            String uuid = getLastVisibleMessageUuid();
2098            if (uuid != null) {
2099                activity.onConversationRead(this.conversation, uuid);
2100            }
2101        }
2102    }
2103
2104    private String getLastVisibleMessageUuid() {
2105        if (binding == null) {
2106            return null;
2107        }
2108        synchronized (this.messageList) {
2109            int pos = binding.messagesView.getLastVisiblePosition();
2110            if (pos >= 0) {
2111                Message message = null;
2112                for (int i = pos; i >= 0; --i) {
2113                    try {
2114                        message = (Message) binding.messagesView.getItemAtPosition(i);
2115                    } catch (IndexOutOfBoundsException e) {
2116                        // should not happen if we synchronize properly. however if that fails we
2117                        // just gonna try item -1
2118                        continue;
2119                    }
2120                    if (message.getType() != Message.TYPE_STATUS) {
2121                        break;
2122                    }
2123                }
2124                if (message != null) {
2125                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
2126                        message = message.next();
2127                    }
2128                    return message.getUuid();
2129                }
2130            }
2131        }
2132        return null;
2133    }
2134
2135    private void openWith(final Message message) {
2136        if (message.isGeoUri()) {
2137            GeoHelper.view(getActivity(), message);
2138        } else {
2139            final DownloadableFile file =
2140                    activity.xmppConnectionService.getFileBackend().getFile(message);
2141            ViewUtil.view(activity, file);
2142        }
2143    }
2144
2145    private void showErrorMessage(final Message message) {
2146        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2147        builder.setTitle(R.string.error_message);
2148        final String errorMessage = message.getErrorMessage();
2149        final String[] errorMessageParts =
2150                errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
2151        final String displayError;
2152        if (errorMessageParts.length == 2) {
2153            displayError = errorMessageParts[1];
2154        } else {
2155            displayError = errorMessage;
2156        }
2157        builder.setMessage(displayError);
2158        builder.setNegativeButton(
2159                R.string.copy_to_clipboard,
2160                (dialog, which) -> {
2161                    activity.copyTextToClipboard(displayError, R.string.error_message);
2162                    Toast.makeText(
2163                                    activity,
2164                                    R.string.error_message_copied_to_clipboard,
2165                                    Toast.LENGTH_SHORT)
2166                            .show();
2167                });
2168        builder.setPositiveButton(R.string.confirm, null);
2169        builder.create().show();
2170    }
2171
2172    private void deleteFile(final Message message) {
2173        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2174        builder.setNegativeButton(R.string.cancel, null);
2175        builder.setTitle(R.string.delete_file_dialog);
2176        builder.setMessage(R.string.delete_file_dialog_msg);
2177        builder.setPositiveButton(
2178                R.string.confirm,
2179                (dialog, which) -> {
2180                    if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
2181                        message.setDeleted(true);
2182                        activity.xmppConnectionService.evictPreview(message.getUuid());
2183                        activity.xmppConnectionService.updateMessage(message, false);
2184                        activity.onConversationsListItemUpdated();
2185                        refresh();
2186                    }
2187                });
2188        builder.create().show();
2189    }
2190
2191    private void resendMessage(final Message message) {
2192        if (message.isFileOrImage()) {
2193            if (!(message.getConversation() instanceof Conversation)) {
2194                return;
2195            }
2196            final Conversation conversation = (Conversation) message.getConversation();
2197            final DownloadableFile file =
2198                    activity.xmppConnectionService.getFileBackend().getFile(message);
2199            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
2200                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
2201                if (!message.hasFileOnRemoteHost()
2202                        && xmppConnection != null
2203                        && conversation.getMode() == Conversational.MODE_SINGLE
2204                        && !xmppConnection
2205                                .getFeatures()
2206                                .httpUpload(message.getFileParams().getSize())) {
2207                    activity.selectPresence(
2208                            conversation,
2209                            () -> {
2210                                message.setCounterpart(conversation.getNextCounterpart());
2211                                activity.xmppConnectionService.resendFailedMessages(message);
2212                                new Handler()
2213                                        .post(
2214                                                () -> {
2215                                                    int size = messageList.size();
2216                                                    this.binding.messagesView.setSelection(
2217                                                            size - 1);
2218                                                });
2219                            });
2220                    return;
2221                }
2222            } else if (!Compatibility.hasStoragePermission(getActivity())) {
2223                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
2224                return;
2225            } else {
2226                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
2227                message.setDeleted(true);
2228                activity.xmppConnectionService.updateMessage(message, false);
2229                activity.onConversationsListItemUpdated();
2230                refresh();
2231                return;
2232            }
2233        }
2234        activity.xmppConnectionService.resendFailedMessages(message);
2235        new Handler()
2236                .post(
2237                        () -> {
2238                            int size = messageList.size();
2239                            this.binding.messagesView.setSelection(size - 1);
2240                        });
2241    }
2242
2243    private void cancelTransmission(Message message) {
2244        Transferable transferable = message.getTransferable();
2245        if (transferable != null) {
2246            transferable.cancel();
2247        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
2248            activity.xmppConnectionService.markMessage(
2249                    message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
2250        }
2251    }
2252
2253    private void retryDecryption(Message message) {
2254        message.setEncryption(Message.ENCRYPTION_PGP);
2255        activity.onConversationsListItemUpdated();
2256        refresh();
2257        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
2258    }
2259
2260    public void privateMessageWith(final Jid counterpart) {
2261        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2262            activity.xmppConnectionService.sendChatState(conversation);
2263        }
2264        this.binding.textinput.setText("");
2265        this.conversation.setNextCounterpart(counterpart);
2266        updateChatMsgHint();
2267        updateSendButton();
2268        updateEditablity();
2269    }
2270
2271    private void correctMessage(Message message) {
2272        while (message.mergeable(message.next())) {
2273            message = message.next();
2274        }
2275        this.conversation.setCorrectingMessage(message);
2276        final Editable editable = binding.textinput.getText();
2277        this.conversation.setDraftMessage(editable.toString());
2278        this.binding.textinput.setText("");
2279        this.binding.textinput.append(message.getBody());
2280    }
2281
2282    private void highlightInConference(String nick) {
2283        final Editable editable = this.binding.textinput.getText();
2284        String oldString = editable.toString().trim();
2285        final int pos = this.binding.textinput.getSelectionStart();
2286        if (oldString.isEmpty() || pos == 0) {
2287            editable.insert(0, nick + ": ");
2288        } else {
2289            final char before = editable.charAt(pos - 1);
2290            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
2291            if (before == '\n') {
2292                editable.insert(pos, nick + ": ");
2293            } else {
2294                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
2295                    if (NickValidityChecker.check(
2296                            conversation,
2297                            Arrays.asList(
2298                                    editable.subSequence(0, pos - 2).toString().split(", ")))) {
2299                        editable.insert(pos - 2, ", " + nick);
2300                        return;
2301                    }
2302                }
2303                editable.insert(
2304                        pos,
2305                        (Character.isWhitespace(before) ? "" : " ")
2306                                + nick
2307                                + (Character.isWhitespace(after) ? "" : " "));
2308                if (Character.isWhitespace(after)) {
2309                    this.binding.textinput.setSelection(
2310                            this.binding.textinput.getSelectionStart() + 1);
2311                }
2312            }
2313        }
2314    }
2315
2316    @Override
2317    public void startActivityForResult(Intent intent, int requestCode) {
2318        final Activity activity = getActivity();
2319        if (activity instanceof ConversationsActivity) {
2320            ((ConversationsActivity) activity).clearPendingViewIntent();
2321        }
2322        super.startActivityForResult(intent, requestCode);
2323    }
2324
2325    @Override
2326    public void onSaveInstanceState(@NotNull Bundle outState) {
2327        super.onSaveInstanceState(outState);
2328        if (conversation != null) {
2329            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
2330            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
2331            final Uri uri = pendingTakePhotoUri.peek();
2332            if (uri != null) {
2333                outState.putString(STATE_PHOTO_URI, uri.toString());
2334            }
2335            final ScrollState scrollState = getScrollPosition();
2336            if (scrollState != null) {
2337                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
2338            }
2339            final ArrayList<Attachment> attachments =
2340                    mediaPreviewAdapter == null
2341                            ? new ArrayList<>()
2342                            : mediaPreviewAdapter.getAttachments();
2343            if (attachments.size() > 0) {
2344                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
2345            }
2346        }
2347    }
2348
2349    @Override
2350    public void onActivityCreated(Bundle savedInstanceState) {
2351        super.onActivityCreated(savedInstanceState);
2352        if (savedInstanceState == null) {
2353            return;
2354        }
2355        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
2356        ArrayList<Attachment> attachments =
2357                savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
2358        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
2359        if (uuid != null) {
2360            QuickLoader.set(uuid);
2361            this.pendingConversationsUuid.push(uuid);
2362            if (attachments != null && attachments.size() > 0) {
2363                this.pendingMediaPreviews.push(attachments);
2364            }
2365            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
2366            if (takePhotoUri != null) {
2367                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2368            }
2369            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2370        }
2371    }
2372
2373    @Override
2374    public void onStart() {
2375        super.onStart();
2376        if (this.reInitRequiredOnStart && this.conversation != null) {
2377            final Bundle extras = pendingExtras.pop();
2378            reInit(this.conversation, extras != null);
2379            if (extras != null) {
2380                processExtras(extras);
2381            }
2382        } else if (conversation == null
2383                && activity != null
2384                && activity.xmppConnectionService != null) {
2385            final String uuid = pendingConversationsUuid.pop();
2386            Log.d(
2387                    Config.LOGTAG,
2388                    "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid="
2389                            + uuid);
2390            if (uuid != null) {
2391                findAndReInitByUuidOrArchive(uuid);
2392            }
2393        }
2394    }
2395
2396    @Override
2397    public void onStop() {
2398        super.onStop();
2399        final Activity activity = getActivity();
2400        messageListAdapter.unregisterListenerInAudioPlayer();
2401        if (activity == null || !activity.isChangingConfigurations()) {
2402            hideSoftKeyboard(activity);
2403            messageListAdapter.stopAudioPlayer();
2404        }
2405        if (this.conversation != null) {
2406            final String msg = this.binding.textinput.getText().toString();
2407            storeNextMessage(msg);
2408            updateChatState(this.conversation, msg);
2409            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2410        }
2411        this.reInitRequiredOnStart = true;
2412    }
2413
2414    private void updateChatState(final Conversation conversation, final String msg) {
2415        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2416        Account.State status = conversation.getAccount().getStatus();
2417        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2418            activity.xmppConnectionService.sendChatState(conversation);
2419        }
2420    }
2421
2422    private void saveMessageDraftStopAudioPlayer() {
2423        final Conversation previousConversation = this.conversation;
2424        if (this.activity == null || this.binding == null || previousConversation == null) {
2425            return;
2426        }
2427        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2428        final String msg = this.binding.textinput.getText().toString();
2429        storeNextMessage(msg);
2430        updateChatState(this.conversation, msg);
2431        messageListAdapter.stopAudioPlayer();
2432        mediaPreviewAdapter.clearPreviews();
2433        toggleInputMethod();
2434    }
2435
2436    public void reInit(final Conversation conversation, final Bundle extras) {
2437        QuickLoader.set(conversation.getUuid());
2438        final boolean changedConversation = this.conversation != conversation;
2439        if (changedConversation) {
2440            this.saveMessageDraftStopAudioPlayer();
2441        }
2442        this.clearPending();
2443        if (this.reInit(conversation, extras != null)) {
2444            if (extras != null) {
2445                processExtras(extras);
2446            }
2447            this.reInitRequiredOnStart = false;
2448        } else {
2449            this.reInitRequiredOnStart = true;
2450            pendingExtras.push(extras);
2451        }
2452        resetUnreadMessagesCount();
2453    }
2454
2455    private void reInit(Conversation conversation) {
2456        reInit(conversation, false);
2457    }
2458
2459    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2460        if (conversation == null) {
2461            return false;
2462        }
2463        this.conversation = conversation;
2464        // once we set the conversation all is good and it will automatically do the right thing in
2465        // onStart()
2466        if (this.activity == null || this.binding == null) {
2467            return false;
2468        }
2469
2470        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2471            activity.onConversationArchived(this.conversation);
2472            return false;
2473        }
2474
2475        stopScrolling();
2476        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
2477
2478        if (this.conversation.isRead() && hasExtras) {
2479            Log.d(Config.LOGTAG, "trimming conversation");
2480            this.conversation.trim();
2481        }
2482
2483        setupIme();
2484
2485        final boolean scrolledToBottomAndNoPending =
2486                this.scrolledToBottom() && pendingScrollState.peek() == null;
2487
2488        this.binding.textSendButton.setContentDescription(
2489                activity.getString(R.string.send_message_to_x, conversation.getName()));
2490        this.binding.textinput.setKeyboardListener(null);
2491        this.binding.textinput.setText("");
2492        final boolean participating =
2493                conversation.getMode() == Conversational.MODE_SINGLE
2494                        || conversation.getMucOptions().participating();
2495        if (participating) {
2496            this.binding.textinput.append(this.conversation.getNextMessage());
2497        }
2498        this.binding.textinput.setKeyboardListener(this);
2499        messageListAdapter.updatePreferences();
2500        refresh(false);
2501        activity.invalidateOptionsMenu();
2502        this.conversation.messagesLoaded.set(true);
2503        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
2504
2505        if (hasExtras || scrolledToBottomAndNoPending) {
2506            resetUnreadMessagesCount();
2507            synchronized (this.messageList) {
2508                Log.d(Config.LOGTAG, "jump to first unread message");
2509                final Message first = conversation.getFirstUnreadMessage();
2510                final int bottom = Math.max(0, this.messageList.size() - 1);
2511                final int pos;
2512                final boolean jumpToBottom;
2513                if (first == null) {
2514                    pos = bottom;
2515                    jumpToBottom = true;
2516                } else {
2517                    int i = getIndexOf(first.getUuid(), this.messageList);
2518                    pos = i < 0 ? bottom : i;
2519                    jumpToBottom = false;
2520                }
2521                setSelection(pos, jumpToBottom);
2522            }
2523        }
2524
2525        this.binding.messagesView.post(this::fireReadEvent);
2526        // TODO if we only do this when this fragment is running on main it won't *bing* in tablet
2527        // layout which might be unnecessary since we can *see* it
2528        activity.xmppConnectionService
2529                .getNotificationService()
2530                .setOpenConversation(this.conversation);
2531        return true;
2532    }
2533
2534    private void resetUnreadMessagesCount() {
2535        lastMessageUuid = null;
2536        hideUnreadMessagesCount();
2537    }
2538
2539    private void hideUnreadMessagesCount() {
2540        if (this.binding == null) {
2541            return;
2542        }
2543        this.binding.scrollToBottomButton.setEnabled(false);
2544        this.binding.scrollToBottomButton.hide();
2545        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2546    }
2547
2548    private void setSelection(int pos, boolean jumpToBottom) {
2549        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2550        this.binding.messagesView.post(
2551                () -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2552        this.binding.messagesView.post(this::fireReadEvent);
2553    }
2554
2555    private boolean scrolledToBottom() {
2556        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2557    }
2558
2559    private void processExtras(final Bundle extras) {
2560        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2561        final String text = extras.getString(Intent.EXTRA_TEXT);
2562        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2563        final String postInitAction =
2564                extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2565        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2566        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2567        final boolean doNotAppend =
2568                extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2569        final String type = extras.getString(ConversationsActivity.EXTRA_TYPE);
2570        final List<Uri> uris = extractUris(extras);
2571        if (uris != null && uris.size() > 0) {
2572            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2573                mediaPreviewAdapter.addMediaPreviews(
2574                        Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2575            } else {
2576                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2577                mediaPreviewAdapter.addMediaPreviews(
2578                        Attachment.of(getActivity(), cleanedUris, type));
2579            }
2580            toggleInputMethod();
2581            return;
2582        }
2583        if (nick != null) {
2584            if (pm) {
2585                Jid jid = conversation.getJid();
2586                try {
2587                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2588                    privateMessageWith(next);
2589                } catch (final IllegalArgumentException ignored) {
2590                    // do nothing
2591                }
2592            } else {
2593                final MucOptions mucOptions = conversation.getMucOptions();
2594                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2595                    highlightInConference(nick);
2596                }
2597            }
2598        } else {
2599            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2600                mediaPreviewAdapter.addMediaPreviews(
2601                        Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2602                toggleInputMethod();
2603                return;
2604            } else if (text != null && asQuote) {
2605                quoteText(text);
2606            } else {
2607                appendText(text, doNotAppend);
2608            }
2609        }
2610        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2611            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2612            return;
2613        }
2614        final Message message =
2615                downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2616        if (message != null) {
2617            startDownloadable(message);
2618        }
2619    }
2620
2621    private List<Uri> extractUris(final Bundle extras) {
2622        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2623        if (uris != null) {
2624            return uris;
2625        }
2626        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2627        if (uri != null) {
2628            return Collections.singletonList(uri);
2629        } else {
2630            return null;
2631        }
2632    }
2633
2634    private List<Uri> cleanUris(final List<Uri> uris) {
2635        final Iterator<Uri> iterator = uris.iterator();
2636        while (iterator.hasNext()) {
2637            final Uri uri = iterator.next();
2638            if (FileBackend.weOwnFile(uri)) {
2639                iterator.remove();
2640                Toast.makeText(
2641                                getActivity(),
2642                                R.string.security_violation_not_attaching_file,
2643                                Toast.LENGTH_SHORT)
2644                        .show();
2645            }
2646        }
2647        return uris;
2648    }
2649
2650    private boolean showBlockSubmenu(View view) {
2651        final Jid jid = conversation.getJid();
2652        final boolean showReject =
2653                !conversation.isWithStranger()
2654                        && conversation
2655                                .getContact()
2656                                .getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2657        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2658        popupMenu.inflate(R.menu.block);
2659        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2660        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2661        popupMenu.setOnMenuItemClickListener(
2662                menuItem -> {
2663                    Blockable blockable;
2664                    switch (menuItem.getItemId()) {
2665                        case R.id.reject:
2666                            activity.xmppConnectionService.stopPresenceUpdatesTo(
2667                                    conversation.getContact());
2668                            updateSnackBar(conversation);
2669                            return true;
2670                        case R.id.block_domain:
2671                            blockable =
2672                                    conversation
2673                                            .getAccount()
2674                                            .getRoster()
2675                                            .getContact(jid.getDomain());
2676                            break;
2677                        default:
2678                            blockable = conversation;
2679                    }
2680                    BlockContactDialog.show(activity, blockable);
2681                    return true;
2682                });
2683        popupMenu.show();
2684        return true;
2685    }
2686
2687    private void updateSnackBar(final Conversation conversation) {
2688        final Account account = conversation.getAccount();
2689        final XmppConnection connection = account.getXmppConnection();
2690        final int mode = conversation.getMode();
2691        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2692        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2693            return;
2694        }
2695        if (account.getStatus() == Account.State.DISABLED) {
2696            showSnackbar(
2697                    R.string.this_account_is_disabled,
2698                    R.string.enable,
2699                    this.mEnableAccountListener);
2700        } else if (conversation.isBlocked()) {
2701            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2702        } else if (contact != null
2703                && !contact.showInRoster()
2704                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2705            showSnackbar(
2706                    R.string.contact_added_you,
2707                    R.string.add_back,
2708                    this.mAddBackClickListener,
2709                    this.mLongPressBlockListener);
2710        } else if (contact != null
2711                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2712            showSnackbar(
2713                    R.string.contact_asks_for_presence_subscription,
2714                    R.string.allow,
2715                    this.mAllowPresenceSubscription,
2716                    this.mLongPressBlockListener);
2717        } else if (mode == Conversation.MODE_MULTI
2718                && !conversation.getMucOptions().online()
2719                && account.getStatus() == Account.State.ONLINE) {
2720            switch (conversation.getMucOptions().getError()) {
2721                case NICK_IN_USE:
2722                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2723                    break;
2724                case NO_RESPONSE:
2725                    showSnackbar(R.string.joining_conference, 0, null);
2726                    break;
2727                case SERVER_NOT_FOUND:
2728                    if (conversation.receivedMessagesCount() > 0) {
2729                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2730                    } else {
2731                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2732                    }
2733                    break;
2734                case REMOTE_SERVER_TIMEOUT:
2735                    if (conversation.receivedMessagesCount() > 0) {
2736                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2737                    } else {
2738                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2739                    }
2740                    break;
2741                case PASSWORD_REQUIRED:
2742                    showSnackbar(
2743                            R.string.conference_requires_password,
2744                            R.string.enter_password,
2745                            enterPassword);
2746                    break;
2747                case BANNED:
2748                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2749                    break;
2750                case MEMBERS_ONLY:
2751                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2752                    break;
2753                case RESOURCE_CONSTRAINT:
2754                    showSnackbar(
2755                            R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2756                    break;
2757                case KICKED:
2758                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2759                    break;
2760                case UNKNOWN:
2761                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2762                    break;
2763                case INVALID_NICK:
2764                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2765                case SHUTDOWN:
2766                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2767                    break;
2768                case DESTROYED:
2769                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2770                    break;
2771                case NON_ANONYMOUS:
2772                    showSnackbar(
2773                            R.string.group_chat_will_make_your_jabber_id_public,
2774                            R.string.join,
2775                            acceptJoin);
2776                    break;
2777                default:
2778                    hideSnackbar();
2779                    break;
2780            }
2781        } else if (account.hasPendingPgpIntent(conversation)) {
2782            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2783        } else if (connection != null
2784                && connection.getFeatures().blocking()
2785                && conversation.countMessages() != 0
2786                && !conversation.isBlocked()
2787                && conversation.isWithStranger()) {
2788            showSnackbar(
2789                    R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2790        } else {
2791            hideSnackbar();
2792        }
2793    }
2794
2795    @Override
2796    public void refresh() {
2797        if (this.binding == null) {
2798            Log.d(
2799                    Config.LOGTAG,
2800                    "ConversationFragment.refresh() skipped updated because view binding was null");
2801            return;
2802        }
2803        if (this.conversation != null
2804                && this.activity != null
2805                && this.activity.xmppConnectionService != null) {
2806            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2807                activity.onConversationArchived(this.conversation);
2808                return;
2809            }
2810        }
2811        this.refresh(true);
2812    }
2813
2814    private void refresh(boolean notifyConversationRead) {
2815        synchronized (this.messageList) {
2816            if (this.conversation != null) {
2817                conversation.populateWithMessages(this.messageList);
2818                updateSnackBar(conversation);
2819                updateStatusMessages();
2820                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2821                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2822                    binding.unreadCountCustomView.setUnreadCount(
2823                            conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2824                }
2825                this.messageListAdapter.notifyDataSetChanged();
2826                updateChatMsgHint();
2827                if (notifyConversationRead && activity != null) {
2828                    binding.messagesView.post(this::fireReadEvent);
2829                }
2830                updateSendButton();
2831                updateEditablity();
2832            }
2833        }
2834    }
2835
2836    protected void messageSent() {
2837        mSendingPgpMessage.set(false);
2838        this.binding.textinput.setText("");
2839        if (conversation.setCorrectingMessage(null)) {
2840            this.binding.textinput.append(conversation.getDraftMessage());
2841            conversation.setDraftMessage(null);
2842        }
2843        storeNextMessage();
2844        updateChatMsgHint();
2845        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2846        final boolean prefScrollToBottom =
2847                p.getBoolean(
2848                        "scroll_to_bottom",
2849                        activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2850        if (prefScrollToBottom || scrolledToBottom()) {
2851            new Handler()
2852                    .post(
2853                            () -> {
2854                                int size = messageList.size();
2855                                this.binding.messagesView.setSelection(size - 1);
2856                            });
2857        }
2858    }
2859
2860    private boolean storeNextMessage() {
2861        return storeNextMessage(this.binding.textinput.getText().toString());
2862    }
2863
2864    private boolean storeNextMessage(String msg) {
2865        final boolean participating =
2866                conversation.getMode() == Conversational.MODE_SINGLE
2867                        || conversation.getMucOptions().participating();
2868        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED
2869                && participating
2870                && this.conversation.setNextMessage(msg)) {
2871            this.activity.xmppConnectionService.updateConversation(this.conversation);
2872            return true;
2873        }
2874        return false;
2875    }
2876
2877    public void doneSendingPgpMessage() {
2878        mSendingPgpMessage.set(false);
2879    }
2880
2881    public long getMaxHttpUploadSize(Conversation conversation) {
2882        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2883        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2884    }
2885
2886    private void updateEditablity() {
2887        boolean canWrite =
2888                this.conversation.getMode() == Conversation.MODE_SINGLE
2889                        || this.conversation.getMucOptions().participating()
2890                        || this.conversation.getNextCounterpart() != null;
2891        this.binding.textinput.setFocusable(canWrite);
2892        this.binding.textinput.setFocusableInTouchMode(canWrite);
2893        this.binding.textSendButton.setEnabled(canWrite);
2894        this.binding.textinput.setCursorVisible(canWrite);
2895        this.binding.textinput.setEnabled(canWrite);
2896    }
2897
2898    public void updateSendButton() {
2899        boolean hasAttachments =
2900                mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2901        final Conversation c = this.conversation;
2902        final Presence.Status status;
2903        final String text =
2904                this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2905        final SendButtonAction action;
2906        if (hasAttachments) {
2907            action = SendButtonAction.TEXT;
2908        } else {
2909            action = SendButtonTool.getAction(getActivity(), c, text);
2910        }
2911        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2912            if (activity != null
2913                    && activity.xmppConnectionService != null
2914                    && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2915                status = Presence.Status.OFFLINE;
2916            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2917                status = c.getContact().getShownStatus();
2918            } else {
2919                status =
2920                        c.getMucOptions().online()
2921                                ? Presence.Status.ONLINE
2922                                : Presence.Status.OFFLINE;
2923            }
2924        } else {
2925            status = Presence.Status.OFFLINE;
2926        }
2927        this.binding.textSendButton.setTag(action);
2928        final Activity activity = getActivity();
2929        if (activity != null) {
2930            this.binding.textSendButton.setImageResource(
2931                    SendButtonTool.getSendButtonImageResource(activity, action, status));
2932        }
2933    }
2934
2935    protected void updateStatusMessages() {
2936        DateSeparator.addAll(this.messageList);
2937        if (showLoadMoreMessages(conversation)) {
2938            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2939        }
2940        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2941            ChatState state = conversation.getIncomingChatState();
2942            if (state == ChatState.COMPOSING) {
2943                this.messageList.add(
2944                        Message.createStatusMessage(
2945                                conversation,
2946                                getString(R.string.contact_is_typing, conversation.getName())));
2947            } else if (state == ChatState.PAUSED) {
2948                this.messageList.add(
2949                        Message.createStatusMessage(
2950                                conversation,
2951                                getString(
2952                                        R.string.contact_has_stopped_typing,
2953                                        conversation.getName())));
2954            } else {
2955                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2956                    final Message message = this.messageList.get(i);
2957                    if (message.getType() != Message.TYPE_STATUS) {
2958                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2959                            return;
2960                        } else {
2961                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2962                                this.messageList.add(
2963                                        i + 1,
2964                                        Message.createStatusMessage(
2965                                                conversation,
2966                                                getString(
2967                                                        R.string.contact_has_read_up_to_this_point,
2968                                                        conversation.getName())));
2969                                return;
2970                            }
2971                        }
2972                    }
2973                }
2974            }
2975        } else {
2976            final MucOptions mucOptions = conversation.getMucOptions();
2977            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2978            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2979            ChatState state = ChatState.COMPOSING;
2980            List<MucOptions.User> users =
2981                    conversation.getMucOptions().getUsersWithChatState(state, 5);
2982            if (users.size() == 0) {
2983                state = ChatState.PAUSED;
2984                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2985            }
2986            if (mucOptions.isPrivateAndNonAnonymous()) {
2987                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2988                    final Set<ReadByMarker> markersForMessage =
2989                            messageList.get(i).getReadByMarkers();
2990                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2991                    for (ReadByMarker marker : markersForMessage) {
2992                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2993                            addedMarkers.add(
2994                                    marker); // may be put outside this condition. set should do
2995                                             // dedup anyway
2996                            MucOptions.User user = mucOptions.findUser(marker);
2997                            if (user != null && !users.contains(user)) {
2998                                shownMarkers.add(user);
2999                            }
3000                        }
3001                    }
3002                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
3003                    final Message statusMessage;
3004                    final int size = shownMarkers.size();
3005                    if (size > 1) {
3006                        final String body;
3007                        if (size <= 4) {
3008                            body =
3009                                    getString(
3010                                            R.string.contacts_have_read_up_to_this_point,
3011                                            UIHelper.concatNames(shownMarkers));
3012                        } else if (ReadByMarker.allUsersRepresented(
3013                                allUsers, markersForMessage, markerForSender)) {
3014                            body = getString(R.string.everyone_has_read_up_to_this_point);
3015                        } else {
3016                            body =
3017                                    getString(
3018                                            R.string.contacts_and_n_more_have_read_up_to_this_point,
3019                                            UIHelper.concatNames(shownMarkers, 3),
3020                                            size - 3);
3021                        }
3022                        statusMessage = Message.createStatusMessage(conversation, body);
3023                        statusMessage.setCounterparts(shownMarkers);
3024                    } else if (size == 1) {
3025                        statusMessage =
3026                                Message.createStatusMessage(
3027                                        conversation,
3028                                        getString(
3029                                                R.string.contact_has_read_up_to_this_point,
3030                                                UIHelper.getDisplayName(shownMarkers.get(0))));
3031                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
3032                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
3033                    } else {
3034                        statusMessage = null;
3035                    }
3036                    if (statusMessage != null) {
3037                        this.messageList.add(i + 1, statusMessage);
3038                    }
3039                    addedMarkers.add(markerForSender);
3040                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
3041                        break;
3042                    }
3043                }
3044            }
3045            if (users.size() > 0) {
3046                Message statusMessage;
3047                if (users.size() == 1) {
3048                    MucOptions.User user = users.get(0);
3049                    int id =
3050                            state == ChatState.COMPOSING
3051                                    ? R.string.contact_is_typing
3052                                    : R.string.contact_has_stopped_typing;
3053                    statusMessage =
3054                            Message.createStatusMessage(
3055                                    conversation, getString(id, UIHelper.getDisplayName(user)));
3056                    statusMessage.setTrueCounterpart(user.getRealJid());
3057                    statusMessage.setCounterpart(user.getFullJid());
3058                } else {
3059                    int id =
3060                            state == ChatState.COMPOSING
3061                                    ? R.string.contacts_are_typing
3062                                    : R.string.contacts_have_stopped_typing;
3063                    statusMessage =
3064                            Message.createStatusMessage(
3065                                    conversation, getString(id, UIHelper.concatNames(users)));
3066                    statusMessage.setCounterparts(users);
3067                }
3068                this.messageList.add(statusMessage);
3069            }
3070        }
3071    }
3072
3073    private void stopScrolling() {
3074        long now = SystemClock.uptimeMillis();
3075        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
3076        binding.messagesView.dispatchTouchEvent(cancel);
3077    }
3078
3079    private boolean showLoadMoreMessages(final Conversation c) {
3080        if (activity == null || activity.xmppConnectionService == null) {
3081            return false;
3082        }
3083        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
3084        final MessageArchiveService service =
3085                activity.xmppConnectionService.getMessageArchiveService();
3086        return mam
3087                && (c.getLastClearHistory().getTimestamp() != 0
3088                        || (c.countMessages() == 0
3089                                && c.messagesLoaded.get()
3090                                && c.hasMessagesLeftOnServer()
3091                                && !service.queryInProgress(c)));
3092    }
3093
3094    private boolean hasMamSupport(final Conversation c) {
3095        if (c.getMode() == Conversation.MODE_SINGLE) {
3096            final XmppConnection connection = c.getAccount().getXmppConnection();
3097            return connection != null && connection.getFeatures().mam();
3098        } else {
3099            return c.getMucOptions().mamSupport();
3100        }
3101    }
3102
3103    protected void showSnackbar(
3104            final int message, final int action, final OnClickListener clickListener) {
3105        showSnackbar(message, action, clickListener, null);
3106    }
3107
3108    protected void showSnackbar(
3109            final int message,
3110            final int action,
3111            final OnClickListener clickListener,
3112            final View.OnLongClickListener longClickListener) {
3113        this.binding.snackbar.setVisibility(View.VISIBLE);
3114        this.binding.snackbar.setOnClickListener(null);
3115        this.binding.snackbarMessage.setText(message);
3116        this.binding.snackbarMessage.setOnClickListener(null);
3117        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
3118        if (action != 0) {
3119            this.binding.snackbarAction.setText(action);
3120        }
3121        this.binding.snackbarAction.setOnClickListener(clickListener);
3122        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
3123    }
3124
3125    protected void hideSnackbar() {
3126        this.binding.snackbar.setVisibility(View.GONE);
3127    }
3128
3129    protected void sendMessage(Message message) {
3130        activity.xmppConnectionService.sendMessage(message);
3131        messageSent();
3132    }
3133
3134    protected void sendPgpMessage(final Message message) {
3135        final XmppConnectionService xmppService = activity.xmppConnectionService;
3136        final Contact contact = message.getConversation().getContact();
3137        if (!activity.hasPgp()) {
3138            activity.showInstallPgpDialog();
3139            return;
3140        }
3141        if (conversation.getAccount().getPgpSignature() == null) {
3142            activity.announcePgp(
3143                    conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
3144            return;
3145        }
3146        if (!mSendingPgpMessage.compareAndSet(false, true)) {
3147            Log.d(Config.LOGTAG, "sending pgp message already in progress");
3148        }
3149        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3150            if (contact.getPgpKeyId() != 0) {
3151                xmppService
3152                        .getPgpEngine()
3153                        .hasKey(
3154                                contact,
3155                                new UiCallback<Contact>() {
3156
3157                                    @Override
3158                                    public void userInputRequired(
3159                                            PendingIntent pi, Contact contact) {
3160                                        startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
3161                                    }
3162
3163                                    @Override
3164                                    public void success(Contact contact) {
3165                                        encryptTextMessage(message);
3166                                    }
3167
3168                                    @Override
3169                                    public void error(int error, Contact contact) {
3170                                        activity.runOnUiThread(
3171                                                () ->
3172                                                        Toast.makeText(
3173                                                                        activity,
3174                                                                        R.string
3175                                                                                .unable_to_connect_to_keychain,
3176                                                                        Toast.LENGTH_SHORT)
3177                                                                .show());
3178                                        mSendingPgpMessage.set(false);
3179                                    }
3180                                });
3181
3182            } else {
3183                showNoPGPKeyDialog(
3184                        false,
3185                        (dialog, which) -> {
3186                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3187                            xmppService.updateConversation(conversation);
3188                            message.setEncryption(Message.ENCRYPTION_NONE);
3189                            xmppService.sendMessage(message);
3190                            messageSent();
3191                        });
3192            }
3193        } else {
3194            if (conversation.getMucOptions().pgpKeysInUse()) {
3195                if (!conversation.getMucOptions().everybodyHasKeys()) {
3196                    Toast warning =
3197                            Toast.makeText(
3198                                    getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
3199                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
3200                    warning.show();
3201                }
3202                encryptTextMessage(message);
3203            } else {
3204                showNoPGPKeyDialog(
3205                        true,
3206                        (dialog, which) -> {
3207                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3208                            message.setEncryption(Message.ENCRYPTION_NONE);
3209                            xmppService.updateConversation(conversation);
3210                            xmppService.sendMessage(message);
3211                            messageSent();
3212                        });
3213            }
3214        }
3215    }
3216
3217    public void encryptTextMessage(Message message) {
3218        activity.xmppConnectionService
3219                .getPgpEngine()
3220                .encrypt(
3221                        message,
3222                        new UiCallback<Message>() {
3223
3224                            @Override
3225                            public void userInputRequired(PendingIntent pi, Message message) {
3226                                startPendingIntent(pi, REQUEST_SEND_MESSAGE);
3227                            }
3228
3229                            @Override
3230                            public void success(Message message) {
3231                                // TODO the following two call can be made before the callback
3232                                getActivity().runOnUiThread(() -> messageSent());
3233                            }
3234
3235                            @Override
3236                            public void error(final int error, Message message) {
3237                                getActivity()
3238                                        .runOnUiThread(
3239                                                () -> {
3240                                                    doneSendingPgpMessage();
3241                                                    Toast.makeText(
3242                                                                    getActivity(),
3243                                                                    error == 0
3244                                                                            ? R.string
3245                                                                                    .unable_to_connect_to_keychain
3246                                                                            : error,
3247                                                                    Toast.LENGTH_SHORT)
3248                                                            .show();
3249                                                });
3250                            }
3251                        });
3252    }
3253
3254    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
3255        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
3256        builder.setIconAttribute(android.R.attr.alertDialogIcon);
3257        if (plural) {
3258            builder.setTitle(getString(R.string.no_pgp_keys));
3259            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
3260        } else {
3261            builder.setTitle(getString(R.string.no_pgp_key));
3262            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
3263        }
3264        builder.setNegativeButton(getString(R.string.cancel), null);
3265        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
3266        builder.create().show();
3267    }
3268
3269    public void appendText(String text, final boolean doNotAppend) {
3270        if (text == null) {
3271            return;
3272        }
3273        final Editable editable = this.binding.textinput.getText();
3274        String previous = editable == null ? "" : editable.toString();
3275        if (doNotAppend && !TextUtils.isEmpty(previous)) {
3276            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG)
3277                    .show();
3278            return;
3279        }
3280        if (UIHelper.isLastLineQuote(previous)) {
3281            text = '\n' + text;
3282        } else if (previous.length() != 0
3283                && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
3284            text = " " + text;
3285        }
3286        this.binding.textinput.append(text);
3287    }
3288
3289    @Override
3290    public boolean onEnterPressed(final boolean isCtrlPressed) {
3291        if (isCtrlPressed || enterIsSend()) {
3292            sendMessage();
3293            return true;
3294        }
3295        return false;
3296    }
3297
3298    private boolean enterIsSend() {
3299        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
3300        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
3301    }
3302
3303    public boolean onArrowUpCtrlPressed() {
3304        final Message lastEditableMessage =
3305                conversation == null ? null : conversation.getLastEditableMessage();
3306        if (lastEditableMessage != null) {
3307            correctMessage(lastEditableMessage);
3308            return true;
3309        } else {
3310            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG)
3311                    .show();
3312            return false;
3313        }
3314    }
3315
3316    @Override
3317    public void onTypingStarted() {
3318        final XmppConnectionService service =
3319                activity == null ? null : activity.xmppConnectionService;
3320        if (service == null) {
3321            return;
3322        }
3323        final Account.State status = conversation.getAccount().getStatus();
3324        if (status == Account.State.ONLINE
3325                && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
3326            service.sendChatState(conversation);
3327        }
3328        runOnUiThread(this::updateSendButton);
3329    }
3330
3331    @Override
3332    public void onTypingStopped() {
3333        final XmppConnectionService service =
3334                activity == null ? null : activity.xmppConnectionService;
3335        if (service == null) {
3336            return;
3337        }
3338        final Account.State status = conversation.getAccount().getStatus();
3339        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
3340            service.sendChatState(conversation);
3341        }
3342    }
3343
3344    @Override
3345    public void onTextDeleted() {
3346        final XmppConnectionService service =
3347                activity == null ? null : activity.xmppConnectionService;
3348        if (service == null) {
3349            return;
3350        }
3351        final Account.State status = conversation.getAccount().getStatus();
3352        if (status == Account.State.ONLINE
3353                && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
3354            service.sendChatState(conversation);
3355        }
3356        if (storeNextMessage()) {
3357            runOnUiThread(
3358                    () -> {
3359                        if (activity == null) {
3360                            return;
3361                        }
3362                        activity.onConversationsListItemUpdated();
3363                    });
3364        }
3365        runOnUiThread(this::updateSendButton);
3366    }
3367
3368    @Override
3369    public void onTextChanged() {
3370        if (conversation != null && conversation.getCorrectingMessage() != null) {
3371            runOnUiThread(this::updateSendButton);
3372        }
3373    }
3374
3375    @Override
3376    public boolean onTabPressed(boolean repeated) {
3377        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
3378            return false;
3379        }
3380        if (repeated) {
3381            completionIndex++;
3382        } else {
3383            lastCompletionLength = 0;
3384            completionIndex = 0;
3385            final String content = this.binding.textinput.getText().toString();
3386            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
3387            int start =
3388                    lastCompletionCursor > 0
3389                            ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1
3390                            : 0;
3391            firstWord = start == 0;
3392            incomplete = content.substring(start, lastCompletionCursor);
3393        }
3394        List<String> completions = new ArrayList<>();
3395        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
3396            String name = user.getName();
3397            if (name != null && name.startsWith(incomplete)) {
3398                completions.add(name + (firstWord ? ": " : " "));
3399            }
3400        }
3401        Collections.sort(completions);
3402        if (completions.size() > completionIndex) {
3403            String completion = completions.get(completionIndex).substring(incomplete.length());
3404            this.binding
3405                    .textinput
3406                    .getEditableText()
3407                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3408            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
3409            lastCompletionLength = completion.length();
3410        } else {
3411            completionIndex = -1;
3412            this.binding
3413                    .textinput
3414                    .getEditableText()
3415                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3416            lastCompletionLength = 0;
3417        }
3418        return true;
3419    }
3420
3421    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
3422        try {
3423            getActivity()
3424                    .startIntentSenderForResult(
3425                            pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
3426        } catch (final SendIntentException ignored) {
3427        }
3428    }
3429
3430    @Override
3431    public void onBackendConnected() {
3432        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
3433        String uuid = pendingConversationsUuid.pop();
3434        if (uuid != null) {
3435            if (!findAndReInitByUuidOrArchive(uuid)) {
3436                return;
3437            }
3438        } else {
3439            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
3440                clearPending();
3441                activity.onConversationArchived(conversation);
3442                return;
3443            }
3444        }
3445        ActivityResult activityResult = postponedActivityResult.pop();
3446        if (activityResult != null) {
3447            handleActivityResult(activityResult);
3448        }
3449        clearPending();
3450    }
3451
3452    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
3453        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
3454        if (conversation == null) {
3455            clearPending();
3456            activity.onConversationArchived(null);
3457            return false;
3458        }
3459        reInit(conversation);
3460        ScrollState scrollState = pendingScrollState.pop();
3461        String lastMessageUuid = pendingLastMessageUuid.pop();
3462        List<Attachment> attachments = pendingMediaPreviews.pop();
3463        if (scrollState != null) {
3464            setScrollPosition(scrollState, lastMessageUuid);
3465        }
3466        if (attachments != null && attachments.size() > 0) {
3467            Log.d(Config.LOGTAG, "had attachments on restore");
3468            mediaPreviewAdapter.addMediaPreviews(attachments);
3469            toggleInputMethod();
3470        }
3471        return true;
3472    }
3473
3474    private void clearPending() {
3475        if (postponedActivityResult.clear()) {
3476            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
3477            if (pendingTakePhotoUri.clear()) {
3478                Log.e(Config.LOGTAG, "cleared pending photo uri");
3479            }
3480        }
3481        if (pendingScrollState.clear()) {
3482            Log.e(Config.LOGTAG, "cleared scroll state");
3483        }
3484        if (pendingConversationsUuid.clear()) {
3485            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
3486        }
3487        if (pendingMediaPreviews.clear()) {
3488            Log.e(Config.LOGTAG, "cleared pending media previews");
3489        }
3490    }
3491
3492    public Conversation getConversation() {
3493        return conversation;
3494    }
3495
3496    @Override
3497    public void onContactPictureLongClicked(View v, final Message message) {
3498        final String fingerprint;
3499        if (message.getEncryption() == Message.ENCRYPTION_PGP
3500                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3501            fingerprint = "pgp";
3502        } else {
3503            fingerprint = message.getFingerprint();
3504        }
3505        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
3506        final Contact contact = message.getContact();
3507        if (message.getStatus() <= Message.STATUS_RECEIVED
3508                && (contact == null || !contact.isSelf())) {
3509            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
3510                final Jid cp = message.getCounterpart();
3511                if (cp == null || cp.isBareJid()) {
3512                    return;
3513                }
3514                final Jid tcp = message.getTrueCounterpart();
3515                final User userByRealJid =
3516                        tcp != null
3517                                ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp)
3518                                : null;
3519                final User user =
3520                        userByRealJid != null
3521                                ? userByRealJid
3522                                : conversation.getMucOptions().findUserByFullJid(cp);
3523                popupMenu.inflate(R.menu.muc_details_context);
3524                final Menu menu = popupMenu.getMenu();
3525                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(
3526                        activity, menu, conversation, user);
3527                popupMenu.setOnMenuItemClickListener(
3528                        menuItem ->
3529                                MucDetailsContextMenuHelper.onContextItemSelected(
3530                                        menuItem, user, activity, fingerprint));
3531            } else {
3532                popupMenu.inflate(R.menu.one_on_one_context);
3533                popupMenu.setOnMenuItemClickListener(
3534                        item -> {
3535                            switch (item.getItemId()) {
3536                                case R.id.action_contact_details:
3537                                    activity.switchToContactDetails(
3538                                            message.getContact(), fingerprint);
3539                                    break;
3540                                case R.id.action_show_qr_code:
3541                                    activity.showQrCode(
3542                                            "xmpp:"
3543                                                    + message.getContact()
3544                                                            .getJid()
3545                                                            .asBareJid()
3546                                                            .toEscapedString());
3547                                    break;
3548                            }
3549                            return true;
3550                        });
3551            }
3552        } else {
3553            popupMenu.inflate(R.menu.account_context);
3554            final Menu menu = popupMenu.getMenu();
3555            menu.findItem(R.id.action_manage_accounts)
3556                    .setVisible(QuickConversationsService.isConversations());
3557            popupMenu.setOnMenuItemClickListener(
3558                    item -> {
3559                        final XmppActivity activity = this.activity;
3560                        if (activity == null) {
3561                            Log.e(Config.LOGTAG, "Unable to perform action. no context provided");
3562                            return true;
3563                        }
3564                        switch (item.getItemId()) {
3565                            case R.id.action_show_qr_code:
3566                                activity.showQrCode(conversation.getAccount().getShareableUri());
3567                                break;
3568                            case R.id.action_account_details:
3569                                activity.switchToAccount(
3570                                        message.getConversation().getAccount(), fingerprint);
3571                                break;
3572                            case R.id.action_manage_accounts:
3573                                AccountUtils.launchManageAccounts(activity);
3574                                break;
3575                        }
3576                        return true;
3577                    });
3578        }
3579        popupMenu.show();
3580    }
3581
3582    @Override
3583    public void onContactPictureClicked(Message message) {
3584        String fingerprint;
3585        if (message.getEncryption() == Message.ENCRYPTION_PGP
3586                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3587            fingerprint = "pgp";
3588        } else {
3589            fingerprint = message.getFingerprint();
3590        }
3591        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3592        if (received) {
3593            if (message.getConversation() instanceof Conversation
3594                    && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3595                Jid tcp = message.getTrueCounterpart();
3596                Jid user = message.getCounterpart();
3597                if (user != null && !user.isBareJid()) {
3598                    final MucOptions mucOptions =
3599                            ((Conversation) message.getConversation()).getMucOptions();
3600                    if (mucOptions.participating()
3601                            || ((Conversation) message.getConversation()).getNextCounterpart()
3602                                    != null) {
3603                        if (!mucOptions.isUserInRoom(user)
3604                                && mucOptions.findUserByRealJid(
3605                                                tcp == null ? null : tcp.asBareJid())
3606                                        == null) {
3607                            Toast.makeText(
3608                                            getActivity(),
3609                                            activity.getString(
3610                                                    R.string.user_has_left_conference,
3611                                                    user.getResource()),
3612                                            Toast.LENGTH_SHORT)
3613                                    .show();
3614                        }
3615                        highlightInConference(user.getResource());
3616                    } else {
3617                        Toast.makeText(
3618                                        getActivity(),
3619                                        R.string.you_are_not_participating,
3620                                        Toast.LENGTH_SHORT)
3621                                .show();
3622                    }
3623                }
3624                return;
3625            } else {
3626                if (!message.getContact().isSelf()) {
3627                    activity.switchToContactDetails(message.getContact(), fingerprint);
3628                    return;
3629                }
3630            }
3631        }
3632        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3633    }
3634
3635    private Activity requireActivity() {
3636        final Activity activity = getActivity();
3637        if (activity == null) {
3638            throw new IllegalStateException("Activity not attached");
3639        }
3640        return activity;
3641    }
3642
3643    public class StaticPagerAdapter extends PagerAdapter {
3644        ViewPager mPager;
3645
3646        StaticPagerAdapter(ViewPager pager) {
3647            mPager = pager;
3648        }
3649
3650        @NonNull
3651        @Override
3652        public View instantiateItem(@NonNull ViewGroup container, int position) {
3653            return mPager.getChildAt(position);
3654        }
3655
3656        @Override
3657        public int getCount() {
3658            return 2;
3659        }
3660
3661        @Override
3662        public boolean isViewFromObject(@NonNull View view, @NonNull Object o) {
3663            return view == o;
3664        }
3665
3666        @Nullable
3667        @Override
3668        public CharSequence getPageTitle(int position) {
3669            switch (position) {
3670                case 0:
3671                    return "Conversation";
3672                case 1:
3673                    return "Commands";
3674                default:
3675                    return super.getPageTitle(position);
3676            }
3677        }
3678    }
3679}