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
1251        commandAdapter = new CommandAdapter((XmppActivity) getActivity());
1252        binding.commandsView.setAdapter(commandAdapter);
1253        Presences presences = conversation.getContact().getPresences();
1254        for (Map.Entry<String, Presence> entry : presences.getPresencesMap().entrySet()) {
1255            String resource = entry.getKey();
1256            Presence presence = entry.getValue();
1257            if (presence.getServiceDiscoveryResult().getFeatures().contains("http://jabber.org/protocol/commands")) {
1258                binding.tabLayout.setVisibility(View.VISIBLE);
1259                binding.conversationViewPager.setCurrentItem(1);
1260                Jid jid = conversation.getContact().getJid();
1261                if (resource != null && !resource.equals("")) jid = jid.withResource(resource);
1262                activity.xmppConnectionService.fetchCommands(conversation.getAccount(), jid, (a, iq) -> {
1263                    if (iq.getType() == IqPacket.TYPE.RESULT) {
1264                        activity.runOnUiThread(() -> {
1265                            for (Element child : iq.query().getChildren()) {
1266                                if (!"item".equals(child.getName()) || !Namespace.DISCO_ITEMS.equals(child.getNamespace())) continue;
1267                                commandAdapter.add(child);
1268                            }
1269                        });
1270                    } else {
1271                        binding.tabLayout.setVisibility(View.GONE);
1272                        binding.conversationViewPager.setCurrentItem(0);
1273                    }
1274                });
1275                break;
1276            }
1277        }
1278
1279        return binding.getRoot();
1280    }
1281
1282    @Override
1283    public void onDestroyView() {
1284        super.onDestroyView();
1285        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1286        messageListAdapter.setOnContactPictureClicked(null);
1287        messageListAdapter.setOnContactPictureLongClicked(null);
1288    }
1289
1290    private void quoteText(String text) {
1291        if (binding.textinput.isEnabled()) {
1292            binding.textinput.insertAsQuote(text);
1293            binding.textinput.requestFocus();
1294            InputMethodManager inputMethodManager =
1295                    (InputMethodManager)
1296                            getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1297            if (inputMethodManager != null) {
1298                inputMethodManager.showSoftInput(
1299                        binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1300            }
1301        }
1302    }
1303
1304    private void quoteMessage(Message message) {
1305        quoteText(MessageUtils.prepareQuote(message));
1306    }
1307
1308    @Override
1309    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1310        // This should cancel any remaining click events that would otherwise trigger links
1311        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1312        synchronized (this.messageList) {
1313            super.onCreateContextMenu(menu, v, menuInfo);
1314            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1315            this.selectedMessage = this.messageList.get(acmi.position);
1316            populateContextMenu(menu);
1317        }
1318    }
1319
1320    private void populateContextMenu(ContextMenu menu) {
1321        final Message m = this.selectedMessage;
1322        final Transferable t = m.getTransferable();
1323        Message relevantForCorrection = m;
1324        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1325            relevantForCorrection = relevantForCorrection.next();
1326        }
1327        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1328
1329            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE
1330                    || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1331                return;
1332            }
1333
1334            if (m.getStatus() == Message.STATUS_RECEIVED
1335                    && t != null
1336                    && (t.getStatus() == Transferable.STATUS_CANCELLED
1337                            || t.getStatus() == Transferable.STATUS_FAILED)) {
1338                return;
1339            }
1340
1341            final boolean deleted = m.isDeleted();
1342            final boolean encrypted =
1343                    m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1344                            || m.getEncryption() == Message.ENCRYPTION_PGP;
1345            final boolean receiving =
1346                    m.getStatus() == Message.STATUS_RECEIVED
1347                            && (t instanceof JingleFileTransferConnection
1348                                    || t instanceof HttpDownloadConnection);
1349            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1350            menu.setHeaderTitle(R.string.message_options);
1351            MenuItem openWith = menu.findItem(R.id.open_with);
1352            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1353            MenuItem copyLink = menu.findItem(R.id.copy_link);
1354            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1355            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1356            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1357            MenuItem shareWith = menu.findItem(R.id.share_with);
1358            MenuItem sendAgain = menu.findItem(R.id.send_again);
1359            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1360            MenuItem downloadFile = menu.findItem(R.id.download_file);
1361            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1362            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1363            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1364            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1365            final boolean showError =
1366                    m.getStatus() == Message.STATUS_SEND_FAILED
1367                            && m.getErrorMessage() != null
1368                            && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1369            if (!m.isFileOrImage()
1370                    && !encrypted
1371                    && !m.isGeoUri()
1372                    && !m.treatAsDownloadable()
1373                    && !unInitiatedButKnownSize
1374                    && t == null) {
1375                copyMessage.setVisible(true);
1376                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1377                String body = m.getMergedBody().toString();
1378                if (ShareUtil.containsXmppUri(body)) {
1379                    copyLink.setTitle(R.string.copy_jabber_id);
1380                    copyLink.setVisible(true);
1381                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1382                    copyLink.setVisible(true);
1383                }
1384            }
1385            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1386                retryDecryption.setVisible(true);
1387            }
1388            if (!showError
1389                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1390                    && !m.isGeoUri()
1391                    && relevantForCorrection.isLastCorrectableMessage()
1392                    && m.getConversation() instanceof Conversation) {
1393                correctMessage.setVisible(true);
1394            }
1395            if ((m.isFileOrImage() && !deleted && !receiving)
1396                    || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())
1397                            && !unInitiatedButKnownSize
1398                            && t == null) {
1399                shareWith.setVisible(true);
1400            }
1401            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1402                sendAgain.setVisible(true);
1403            }
1404            if (m.hasFileOnRemoteHost()
1405                    || m.isGeoUri()
1406                    || m.treatAsDownloadable()
1407                    || unInitiatedButKnownSize
1408                    || t instanceof HttpDownloadConnection) {
1409                copyUrl.setVisible(true);
1410            }
1411            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1412                downloadFile.setVisible(true);
1413                downloadFile.setTitle(
1414                        activity.getString(
1415                                R.string.download_x_file,
1416                                UIHelper.getFileDescriptionString(activity, m)));
1417            }
1418            final boolean waitingOfferedSending =
1419                    m.getStatus() == Message.STATUS_WAITING
1420                            || m.getStatus() == Message.STATUS_UNSEND
1421                            || m.getStatus() == Message.STATUS_OFFERED;
1422            final boolean cancelable =
1423                    (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1424            if (cancelable) {
1425                cancelTransmission.setVisible(true);
1426            }
1427            if (m.isFileOrImage() && !deleted && !cancelable) {
1428                final String path = m.getRelativeFilePath();
1429                if (path == null
1430                        || !path.startsWith("/")
1431                        || FileBackend.inConversationsDirectory(requireActivity(), path)) {
1432                    deleteFile.setVisible(true);
1433                    deleteFile.setTitle(
1434                            activity.getString(
1435                                    R.string.delete_x_file,
1436                                    UIHelper.getFileDescriptionString(activity, m)));
1437                }
1438            }
1439            if (showError) {
1440                showErrorMessage.setVisible(true);
1441            }
1442            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1443            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m))
1444                    || (mime != null && mime.startsWith("audio/"))) {
1445                openWith.setVisible(true);
1446            }
1447        }
1448    }
1449
1450    @Override
1451    public boolean onContextItemSelected(MenuItem item) {
1452        switch (item.getItemId()) {
1453            case R.id.share_with:
1454                ShareUtil.share(activity, selectedMessage);
1455                return true;
1456            case R.id.correct_message:
1457                correctMessage(selectedMessage);
1458                return true;
1459            case R.id.copy_message:
1460                ShareUtil.copyToClipboard(activity, selectedMessage);
1461                return true;
1462            case R.id.copy_link:
1463                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1464                return true;
1465            case R.id.quote_message:
1466                quoteMessage(selectedMessage);
1467                return true;
1468            case R.id.send_again:
1469                resendMessage(selectedMessage);
1470                return true;
1471            case R.id.copy_url:
1472                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1473                return true;
1474            case R.id.download_file:
1475                startDownloadable(selectedMessage);
1476                return true;
1477            case R.id.cancel_transmission:
1478                cancelTransmission(selectedMessage);
1479                return true;
1480            case R.id.retry_decryption:
1481                retryDecryption(selectedMessage);
1482                return true;
1483            case R.id.delete_file:
1484                deleteFile(selectedMessage);
1485                return true;
1486            case R.id.show_error_message:
1487                showErrorMessage(selectedMessage);
1488                return true;
1489            case R.id.open_with:
1490                openWith(selectedMessage);
1491                return true;
1492            default:
1493                return super.onContextItemSelected(item);
1494        }
1495    }
1496
1497    @Override
1498    public boolean onOptionsItemSelected(final MenuItem item) {
1499        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1500            return false;
1501        } else if (conversation == null) {
1502            return super.onOptionsItemSelected(item);
1503        }
1504        switch (item.getItemId()) {
1505            case R.id.encryption_choice_axolotl:
1506            case R.id.encryption_choice_pgp:
1507            case R.id.encryption_choice_none:
1508                handleEncryptionSelection(item);
1509                break;
1510            case R.id.attach_choose_picture:
1511            case R.id.attach_take_picture:
1512            case R.id.attach_record_video:
1513            case R.id.attach_choose_file:
1514            case R.id.attach_record_voice:
1515            case R.id.attach_location:
1516                handleAttachmentSelection(item);
1517                break;
1518            case R.id.action_search:
1519                startSearch();
1520                break;
1521            case R.id.action_archive:
1522                activity.xmppConnectionService.archiveConversation(conversation);
1523                break;
1524            case R.id.action_contact_details:
1525                activity.switchToContactDetails(conversation.getContact());
1526                break;
1527            case R.id.action_muc_details:
1528                ConferenceDetailsActivity.open(getActivity(), conversation);
1529                break;
1530            case R.id.action_invite:
1531                startActivityForResult(
1532                        ChooseContactActivity.create(activity, conversation),
1533                        REQUEST_INVITE_TO_CONVERSATION);
1534                break;
1535            case R.id.action_clear_history:
1536                clearHistoryDialog(conversation);
1537                break;
1538            case R.id.action_mute:
1539                muteConversationDialog(conversation);
1540                break;
1541            case R.id.action_unmute:
1542                unMuteConversation(conversation);
1543                break;
1544            case R.id.action_block:
1545            case R.id.action_unblock:
1546                final Activity activity = getActivity();
1547                if (activity instanceof XmppActivity) {
1548                    BlockContactDialog.show((XmppActivity) activity, conversation);
1549                }
1550                break;
1551            case R.id.action_audio_call:
1552                checkPermissionAndTriggerAudioCall();
1553                break;
1554            case R.id.action_video_call:
1555                checkPermissionAndTriggerVideoCall();
1556                break;
1557            case R.id.action_ongoing_call:
1558                returnToOngoingCall();
1559                break;
1560            case R.id.action_toggle_pinned:
1561                togglePinned();
1562                break;
1563            default:
1564                break;
1565        }
1566        return super.onOptionsItemSelected(item);
1567    }
1568
1569    private void startSearch() {
1570        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1571        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1572        startActivity(intent);
1573    }
1574
1575    private void returnToOngoingCall() {
1576        final Optional<OngoingRtpSession> ongoingRtpSession =
1577                activity.xmppConnectionService
1578                        .getJingleConnectionManager()
1579                        .getOngoingRtpConnection(conversation.getContact());
1580        if (ongoingRtpSession.isPresent()) {
1581            final OngoingRtpSession id = ongoingRtpSession.get();
1582            final Intent intent = new Intent(activity, RtpSessionActivity.class);
1583            intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, id.getAccount().getJid().asBareJid().toEscapedString());
1584            intent.putExtra(
1585                    RtpSessionActivity.EXTRA_ACCOUNT,
1586                    id.getAccount().getJid().asBareJid().toEscapedString());
1587            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1588            if (id instanceof AbstractJingleConnection.Id) {
1589                intent.setAction(Intent.ACTION_VIEW);
1590                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1591            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1592                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1593                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1594                } else {
1595                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1596                }
1597            }
1598            activity.startActivity(intent);
1599        }
1600    }
1601
1602    private void togglePinned() {
1603        final boolean pinned =
1604                conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1605        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1606        activity.xmppConnectionService.updateConversation(conversation);
1607        activity.invalidateOptionsMenu();
1608    }
1609
1610    private void checkPermissionAndTriggerAudioCall() {
1611        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1612            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1613            return;
1614        }
1615        final List<String> permissions;
1616        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1617            permissions =
1618                    Arrays.asList(
1619                            Manifest.permission.RECORD_AUDIO,
1620                            Manifest.permission.BLUETOOTH_CONNECT);
1621        } else {
1622            permissions = Collections.singletonList(Manifest.permission.RECORD_AUDIO);
1623        }
1624        if (hasPermissions(REQUEST_START_AUDIO_CALL, permissions)) {
1625            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1626        }
1627    }
1628
1629    private void checkPermissionAndTriggerVideoCall() {
1630        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1631            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1632            return;
1633        }
1634        final List<String> permissions;
1635        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1636            permissions =
1637                    Arrays.asList(
1638                            Manifest.permission.RECORD_AUDIO,
1639                            Manifest.permission.CAMERA,
1640                            Manifest.permission.BLUETOOTH_CONNECT);
1641        } else {
1642            permissions =
1643                    Arrays.asList(Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA);
1644        }
1645        if (hasPermissions(REQUEST_START_VIDEO_CALL, permissions)) {
1646            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1647        }
1648    }
1649
1650    private void triggerRtpSession(final String action) {
1651        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy() != null) {
1652            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG)
1653                    .show();
1654            return;
1655        }
1656        final Contact contact = conversation.getContact();
1657        if (contact.getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1658            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1659        } else {
1660            final RtpCapability.Capability capability;
1661            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1662                capability = RtpCapability.Capability.VIDEO;
1663            } else {
1664                capability = RtpCapability.Capability.AUDIO;
1665            }
1666            PresenceSelector.selectFullJidForDirectRtpConnection(
1667                    activity,
1668                    contact,
1669                    capability,
1670                    fullJid -> {
1671                        triggerRtpSession(contact.getAccount(), fullJid, action);
1672                    });
1673        }
1674    }
1675
1676    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1677        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1678        intent.setAction(action);
1679        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1680        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1681        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1682        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1683        startActivity(intent);
1684    }
1685
1686    private void handleAttachmentSelection(MenuItem item) {
1687        switch (item.getItemId()) {
1688            case R.id.attach_choose_picture:
1689                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1690                break;
1691            case R.id.attach_take_picture:
1692                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1693                break;
1694            case R.id.attach_record_video:
1695                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1696                break;
1697            case R.id.attach_choose_file:
1698                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1699                break;
1700            case R.id.attach_record_voice:
1701                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1702                break;
1703            case R.id.attach_location:
1704                attachFile(ATTACHMENT_CHOICE_LOCATION);
1705                break;
1706        }
1707    }
1708
1709    private void handleEncryptionSelection(MenuItem item) {
1710        if (conversation == null) {
1711            return;
1712        }
1713        final boolean updated;
1714        switch (item.getItemId()) {
1715            case R.id.encryption_choice_none:
1716                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1717                item.setChecked(true);
1718                break;
1719            case R.id.encryption_choice_pgp:
1720                if (activity.hasPgp()) {
1721                    if (conversation.getAccount().getPgpSignature() != null) {
1722                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1723                        item.setChecked(true);
1724                    } else {
1725                        updated = false;
1726                        activity.announcePgp(
1727                                conversation.getAccount(),
1728                                conversation,
1729                                null,
1730                                activity.onOpenPGPKeyPublished);
1731                    }
1732                } else {
1733                    activity.showInstallPgpDialog();
1734                    updated = false;
1735                }
1736                break;
1737            case R.id.encryption_choice_axolotl:
1738                Log.d(
1739                        Config.LOGTAG,
1740                        AxolotlService.getLogprefix(conversation.getAccount())
1741                                + "Enabled axolotl for Contact "
1742                                + conversation.getContact().getJid());
1743                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1744                item.setChecked(true);
1745                break;
1746            default:
1747                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1748                break;
1749        }
1750        if (updated) {
1751            activity.xmppConnectionService.updateConversation(conversation);
1752        }
1753        updateChatMsgHint();
1754        getActivity().invalidateOptionsMenu();
1755        activity.refreshUi();
1756    }
1757
1758    public void attachFile(final int attachmentChoice) {
1759        attachFile(attachmentChoice, true);
1760    }
1761
1762    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1763        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1764            if (!hasPermissions(
1765                    attachmentChoice,
1766                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1767                    Manifest.permission.RECORD_AUDIO)) {
1768                return;
1769            }
1770        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO
1771                || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1772            if (!hasPermissions(
1773                    attachmentChoice,
1774                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1775                    Manifest.permission.CAMERA)) {
1776                return;
1777            }
1778        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1779            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1780                return;
1781            }
1782        }
1783        if (updateRecentlyUsed) {
1784            storeRecentlyUsedQuickAction(attachmentChoice);
1785        }
1786        final int encryption = conversation.getNextEncryption();
1787        final int mode = conversation.getMode();
1788        if (encryption == Message.ENCRYPTION_PGP) {
1789            if (activity.hasPgp()) {
1790                if (mode == Conversation.MODE_SINGLE
1791                        && conversation.getContact().getPgpKeyId() != 0) {
1792                    activity.xmppConnectionService
1793                            .getPgpEngine()
1794                            .hasKey(
1795                                    conversation.getContact(),
1796                                    new UiCallback<Contact>() {
1797
1798                                        @Override
1799                                        public void userInputRequired(
1800                                                PendingIntent pi, Contact contact) {
1801                                            startPendingIntent(pi, attachmentChoice);
1802                                        }
1803
1804                                        @Override
1805                                        public void success(Contact contact) {
1806                                            invokeAttachFileIntent(attachmentChoice);
1807                                        }
1808
1809                                        @Override
1810                                        public void error(int error, Contact contact) {
1811                                            activity.replaceToast(getString(error));
1812                                        }
1813                                    });
1814                } else if (mode == Conversation.MODE_MULTI
1815                        && conversation.getMucOptions().pgpKeysInUse()) {
1816                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1817                        Toast warning =
1818                                Toast.makeText(
1819                                        getActivity(),
1820                                        R.string.missing_public_keys,
1821                                        Toast.LENGTH_LONG);
1822                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1823                        warning.show();
1824                    }
1825                    invokeAttachFileIntent(attachmentChoice);
1826                } else {
1827                    showNoPGPKeyDialog(
1828                            false,
1829                            (dialog, which) -> {
1830                                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1831                                activity.xmppConnectionService.updateConversation(conversation);
1832                                invokeAttachFileIntent(attachmentChoice);
1833                            });
1834                }
1835            } else {
1836                activity.showInstallPgpDialog();
1837            }
1838        } else {
1839            invokeAttachFileIntent(attachmentChoice);
1840        }
1841    }
1842
1843    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1844        try {
1845            activity.getPreferences()
1846                    .edit()
1847                    .putString(
1848                            RECENTLY_USED_QUICK_ACTION,
1849                            SendButtonAction.of(attachmentChoice).toString())
1850                    .apply();
1851        } catch (IllegalArgumentException e) {
1852            // just do not save
1853        }
1854    }
1855
1856    @Override
1857    public void onRequestPermissionsResult(
1858            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1859        final PermissionUtils.PermissionResult permissionResult =
1860                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
1861        if (grantResults.length > 0) {
1862            if (allGranted(permissionResult.grantResults)) {
1863                switch (requestCode) {
1864                    case REQUEST_START_DOWNLOAD:
1865                        if (this.mPendingDownloadableMessage != null) {
1866                            startDownloadable(this.mPendingDownloadableMessage);
1867                        }
1868                        break;
1869                    case REQUEST_ADD_EDITOR_CONTENT:
1870                        if (this.mPendingEditorContent != null) {
1871                            attachEditorContentToConversation(this.mPendingEditorContent);
1872                        }
1873                        break;
1874                    case REQUEST_COMMIT_ATTACHMENTS:
1875                        commitAttachments();
1876                        break;
1877                    case REQUEST_START_AUDIO_CALL:
1878                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1879                        break;
1880                    case REQUEST_START_VIDEO_CALL:
1881                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1882                        break;
1883                    default:
1884                        attachFile(requestCode);
1885                        break;
1886                }
1887            } else {
1888                @StringRes int res;
1889                String firstDenied =
1890                        getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
1891                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1892                    res = R.string.no_microphone_permission;
1893                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1894                    res = R.string.no_camera_permission;
1895                } else {
1896                    res = R.string.no_storage_permission;
1897                }
1898                Toast.makeText(
1899                                getActivity(),
1900                                getString(res, getString(R.string.app_name)),
1901                                Toast.LENGTH_SHORT)
1902                        .show();
1903            }
1904        }
1905        if (writeGranted(grantResults, permissions)) {
1906            if (activity != null && activity.xmppConnectionService != null) {
1907                activity.xmppConnectionService.getBitmapCache().evictAll();
1908                activity.xmppConnectionService.restartFileObserver();
1909            }
1910            refresh();
1911        }
1912    }
1913
1914    public void startDownloadable(Message message) {
1915        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1916            this.mPendingDownloadableMessage = message;
1917            return;
1918        }
1919        Transferable transferable = message.getTransferable();
1920        if (transferable != null) {
1921            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1922                createNewConnection(message);
1923                return;
1924            }
1925            if (!transferable.start()) {
1926                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1927                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1928                        .show();
1929            }
1930        } else if (message.treatAsDownloadable()
1931                || message.hasFileOnRemoteHost()
1932                || MessageUtils.unInitiatedButKnownSize(message)) {
1933            createNewConnection(message);
1934        } else {
1935            Log.d(
1936                    Config.LOGTAG,
1937                    message.getConversation().getAccount() + ": unable to start downloadable");
1938        }
1939    }
1940
1941    private void createNewConnection(final Message message) {
1942        if (!activity.xmppConnectionService.hasInternetConnection()) {
1943            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1944                    .show();
1945            return;
1946        }
1947        activity.xmppConnectionService
1948                .getHttpConnectionManager()
1949                .createNewDownloadConnection(message, true);
1950    }
1951
1952    @SuppressLint("InflateParams")
1953    protected void clearHistoryDialog(final Conversation conversation) {
1954        final AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
1955        builder.setTitle(getString(R.string.clear_conversation_history));
1956        final View dialogView =
1957                requireActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1958        final CheckBox endConversationCheckBox =
1959                dialogView.findViewById(R.id.end_conversation_checkbox);
1960        builder.setView(dialogView);
1961        builder.setNegativeButton(getString(R.string.cancel), null);
1962        builder.setPositiveButton(
1963                getString(R.string.confirm),
1964                (dialog, which) -> {
1965                    this.activity.xmppConnectionService.clearConversationHistory(conversation);
1966                    if (endConversationCheckBox.isChecked()) {
1967                        this.activity.xmppConnectionService.archiveConversation(conversation);
1968                        this.activity.onConversationArchived(conversation);
1969                    } else {
1970                        activity.onConversationsListItemUpdated();
1971                        refresh();
1972                    }
1973                });
1974        builder.create().show();
1975    }
1976
1977    protected void muteConversationDialog(final Conversation conversation) {
1978        final AlertDialog.Builder builder = new AlertDialog.Builder(activity);
1979        builder.setTitle(R.string.disable_notifications);
1980        final int[] durations = activity.getResources().getIntArray(R.array.mute_options_durations);
1981        final CharSequence[] labels = new CharSequence[durations.length];
1982        for (int i = 0; i < durations.length; ++i) {
1983            if (durations[i] == -1) {
1984                labels[i] = activity.getString(R.string.until_further_notice);
1985            } else {
1986                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1987            }
1988        }
1989        builder.setItems(
1990                labels,
1991                (dialog, which) -> {
1992                    final long till;
1993                    if (durations[which] == -1) {
1994                        till = Long.MAX_VALUE;
1995                    } else {
1996                        till = System.currentTimeMillis() + (durations[which] * 1000L);
1997                    }
1998                    conversation.setMutedTill(till);
1999                    activity.xmppConnectionService.updateConversation(conversation);
2000                    activity.onConversationsListItemUpdated();
2001                    refresh();
2002                    activity.invalidateOptionsMenu();
2003                });
2004        builder.create().show();
2005    }
2006
2007    private boolean hasPermissions(int requestCode, List<String> permissions) {
2008        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
2009            final List<String> missingPermissions = new ArrayList<>();
2010            for (String permission : permissions) {
2011                if (Config.ONLY_INTERNAL_STORAGE
2012                        && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
2013                    continue;
2014                }
2015                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
2016                    missingPermissions.add(permission);
2017                }
2018            }
2019            if (missingPermissions.size() == 0) {
2020                return true;
2021            } else {
2022                requestPermissions(
2023                        missingPermissions.toArray(new String[0]),
2024                        requestCode);
2025                return false;
2026            }
2027        } else {
2028            return true;
2029        }
2030    }
2031
2032    private boolean hasPermissions(int requestCode, String... permissions) {
2033        return hasPermissions(requestCode, ImmutableList.copyOf(permissions));
2034    }
2035
2036    public void unMuteConversation(final Conversation conversation) {
2037        conversation.setMutedTill(0);
2038        this.activity.xmppConnectionService.updateConversation(conversation);
2039        this.activity.onConversationsListItemUpdated();
2040        refresh();
2041        this.activity.invalidateOptionsMenu();
2042    }
2043
2044    protected void invokeAttachFileIntent(final int attachmentChoice) {
2045        Intent intent = new Intent();
2046        boolean chooser = false;
2047        switch (attachmentChoice) {
2048            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
2049                intent.setAction(Intent.ACTION_GET_CONTENT);
2050                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2051                intent.setType("image/*");
2052                chooser = true;
2053                break;
2054            case ATTACHMENT_CHOICE_RECORD_VIDEO:
2055                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
2056                break;
2057            case ATTACHMENT_CHOICE_TAKE_PHOTO:
2058                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
2059                pendingTakePhotoUri.push(uri);
2060                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
2061                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
2062                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
2063                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
2064                break;
2065            case ATTACHMENT_CHOICE_CHOOSE_FILE:
2066                chooser = true;
2067                intent.setType("*/*");
2068                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2069                intent.addCategory(Intent.CATEGORY_OPENABLE);
2070                intent.setAction(Intent.ACTION_GET_CONTENT);
2071                break;
2072            case ATTACHMENT_CHOICE_RECORD_VOICE:
2073                intent = new Intent(getActivity(), RecordingActivity.class);
2074                break;
2075            case ATTACHMENT_CHOICE_LOCATION:
2076                intent = GeoHelper.getFetchIntent(activity);
2077                break;
2078        }
2079        final Context context = getActivity();
2080        if (context == null) {
2081            return;
2082        }
2083        try {
2084            if (chooser) {
2085                startActivityForResult(
2086                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
2087                        attachmentChoice);
2088            } else {
2089                startActivityForResult(intent, attachmentChoice);
2090            }
2091        } catch (final ActivityNotFoundException e) {
2092            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
2093        }
2094    }
2095
2096    @Override
2097    public void onResume() {
2098        super.onResume();
2099        binding.messagesView.post(this::fireReadEvent);
2100    }
2101
2102    private void fireReadEvent() {
2103        if (activity != null && this.conversation != null) {
2104            String uuid = getLastVisibleMessageUuid();
2105            if (uuid != null) {
2106                activity.onConversationRead(this.conversation, uuid);
2107            }
2108        }
2109    }
2110
2111    private String getLastVisibleMessageUuid() {
2112        if (binding == null) {
2113            return null;
2114        }
2115        synchronized (this.messageList) {
2116            int pos = binding.messagesView.getLastVisiblePosition();
2117            if (pos >= 0) {
2118                Message message = null;
2119                for (int i = pos; i >= 0; --i) {
2120                    try {
2121                        message = (Message) binding.messagesView.getItemAtPosition(i);
2122                    } catch (IndexOutOfBoundsException e) {
2123                        // should not happen if we synchronize properly. however if that fails we
2124                        // just gonna try item -1
2125                        continue;
2126                    }
2127                    if (message.getType() != Message.TYPE_STATUS) {
2128                        break;
2129                    }
2130                }
2131                if (message != null) {
2132                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
2133                        message = message.next();
2134                    }
2135                    return message.getUuid();
2136                }
2137            }
2138        }
2139        return null;
2140    }
2141
2142    private void openWith(final Message message) {
2143        if (message.isGeoUri()) {
2144            GeoHelper.view(getActivity(), message);
2145        } else {
2146            final DownloadableFile file =
2147                    activity.xmppConnectionService.getFileBackend().getFile(message);
2148            ViewUtil.view(activity, file);
2149        }
2150    }
2151
2152    private void showErrorMessage(final Message message) {
2153        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2154        builder.setTitle(R.string.error_message);
2155        final String errorMessage = message.getErrorMessage();
2156        final String[] errorMessageParts =
2157                errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
2158        final String displayError;
2159        if (errorMessageParts.length == 2) {
2160            displayError = errorMessageParts[1];
2161        } else {
2162            displayError = errorMessage;
2163        }
2164        builder.setMessage(displayError);
2165        builder.setNegativeButton(
2166                R.string.copy_to_clipboard,
2167                (dialog, which) -> {
2168                    activity.copyTextToClipboard(displayError, R.string.error_message);
2169                    Toast.makeText(
2170                                    activity,
2171                                    R.string.error_message_copied_to_clipboard,
2172                                    Toast.LENGTH_SHORT)
2173                            .show();
2174                });
2175        builder.setPositiveButton(R.string.confirm, null);
2176        builder.create().show();
2177    }
2178
2179    private void deleteFile(final Message message) {
2180        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2181        builder.setNegativeButton(R.string.cancel, null);
2182        builder.setTitle(R.string.delete_file_dialog);
2183        builder.setMessage(R.string.delete_file_dialog_msg);
2184        builder.setPositiveButton(
2185                R.string.confirm,
2186                (dialog, which) -> {
2187                    if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
2188                        message.setDeleted(true);
2189                        activity.xmppConnectionService.evictPreview(message.getUuid());
2190                        activity.xmppConnectionService.updateMessage(message, false);
2191                        activity.onConversationsListItemUpdated();
2192                        refresh();
2193                    }
2194                });
2195        builder.create().show();
2196    }
2197
2198    private void resendMessage(final Message message) {
2199        if (message.isFileOrImage()) {
2200            if (!(message.getConversation() instanceof Conversation)) {
2201                return;
2202            }
2203            final Conversation conversation = (Conversation) message.getConversation();
2204            final DownloadableFile file =
2205                    activity.xmppConnectionService.getFileBackend().getFile(message);
2206            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
2207                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
2208                if (!message.hasFileOnRemoteHost()
2209                        && xmppConnection != null
2210                        && conversation.getMode() == Conversational.MODE_SINGLE
2211                        && !xmppConnection
2212                                .getFeatures()
2213                                .httpUpload(message.getFileParams().getSize())) {
2214                    activity.selectPresence(
2215                            conversation,
2216                            () -> {
2217                                message.setCounterpart(conversation.getNextCounterpart());
2218                                activity.xmppConnectionService.resendFailedMessages(message);
2219                                new Handler()
2220                                        .post(
2221                                                () -> {
2222                                                    int size = messageList.size();
2223                                                    this.binding.messagesView.setSelection(
2224                                                            size - 1);
2225                                                });
2226                            });
2227                    return;
2228                }
2229            } else if (!Compatibility.hasStoragePermission(getActivity())) {
2230                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
2231                return;
2232            } else {
2233                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
2234                message.setDeleted(true);
2235                activity.xmppConnectionService.updateMessage(message, false);
2236                activity.onConversationsListItemUpdated();
2237                refresh();
2238                return;
2239            }
2240        }
2241        activity.xmppConnectionService.resendFailedMessages(message);
2242        new Handler()
2243                .post(
2244                        () -> {
2245                            int size = messageList.size();
2246                            this.binding.messagesView.setSelection(size - 1);
2247                        });
2248    }
2249
2250    private void cancelTransmission(Message message) {
2251        Transferable transferable = message.getTransferable();
2252        if (transferable != null) {
2253            transferable.cancel();
2254        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
2255            activity.xmppConnectionService.markMessage(
2256                    message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
2257        }
2258    }
2259
2260    private void retryDecryption(Message message) {
2261        message.setEncryption(Message.ENCRYPTION_PGP);
2262        activity.onConversationsListItemUpdated();
2263        refresh();
2264        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
2265    }
2266
2267    public void privateMessageWith(final Jid counterpart) {
2268        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2269            activity.xmppConnectionService.sendChatState(conversation);
2270        }
2271        this.binding.textinput.setText("");
2272        this.conversation.setNextCounterpart(counterpart);
2273        updateChatMsgHint();
2274        updateSendButton();
2275        updateEditablity();
2276    }
2277
2278    private void correctMessage(Message message) {
2279        while (message.mergeable(message.next())) {
2280            message = message.next();
2281        }
2282        this.conversation.setCorrectingMessage(message);
2283        final Editable editable = binding.textinput.getText();
2284        this.conversation.setDraftMessage(editable.toString());
2285        this.binding.textinput.setText("");
2286        this.binding.textinput.append(message.getBody());
2287    }
2288
2289    private void highlightInConference(String nick) {
2290        final Editable editable = this.binding.textinput.getText();
2291        String oldString = editable.toString().trim();
2292        final int pos = this.binding.textinput.getSelectionStart();
2293        if (oldString.isEmpty() || pos == 0) {
2294            editable.insert(0, nick + ": ");
2295        } else {
2296            final char before = editable.charAt(pos - 1);
2297            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
2298            if (before == '\n') {
2299                editable.insert(pos, nick + ": ");
2300            } else {
2301                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
2302                    if (NickValidityChecker.check(
2303                            conversation,
2304                            Arrays.asList(
2305                                    editable.subSequence(0, pos - 2).toString().split(", ")))) {
2306                        editable.insert(pos - 2, ", " + nick);
2307                        return;
2308                    }
2309                }
2310                editable.insert(
2311                        pos,
2312                        (Character.isWhitespace(before) ? "" : " ")
2313                                + nick
2314                                + (Character.isWhitespace(after) ? "" : " "));
2315                if (Character.isWhitespace(after)) {
2316                    this.binding.textinput.setSelection(
2317                            this.binding.textinput.getSelectionStart() + 1);
2318                }
2319            }
2320        }
2321    }
2322
2323    @Override
2324    public void startActivityForResult(Intent intent, int requestCode) {
2325        final Activity activity = getActivity();
2326        if (activity instanceof ConversationsActivity) {
2327            ((ConversationsActivity) activity).clearPendingViewIntent();
2328        }
2329        super.startActivityForResult(intent, requestCode);
2330    }
2331
2332    @Override
2333    public void onSaveInstanceState(@NotNull Bundle outState) {
2334        super.onSaveInstanceState(outState);
2335        if (conversation != null) {
2336            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
2337            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
2338            final Uri uri = pendingTakePhotoUri.peek();
2339            if (uri != null) {
2340                outState.putString(STATE_PHOTO_URI, uri.toString());
2341            }
2342            final ScrollState scrollState = getScrollPosition();
2343            if (scrollState != null) {
2344                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
2345            }
2346            final ArrayList<Attachment> attachments =
2347                    mediaPreviewAdapter == null
2348                            ? new ArrayList<>()
2349                            : mediaPreviewAdapter.getAttachments();
2350            if (attachments.size() > 0) {
2351                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
2352            }
2353        }
2354    }
2355
2356    @Override
2357    public void onActivityCreated(Bundle savedInstanceState) {
2358        super.onActivityCreated(savedInstanceState);
2359        if (savedInstanceState == null) {
2360            return;
2361        }
2362        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
2363        ArrayList<Attachment> attachments =
2364                savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
2365        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
2366        if (uuid != null) {
2367            QuickLoader.set(uuid);
2368            this.pendingConversationsUuid.push(uuid);
2369            if (attachments != null && attachments.size() > 0) {
2370                this.pendingMediaPreviews.push(attachments);
2371            }
2372            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
2373            if (takePhotoUri != null) {
2374                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2375            }
2376            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2377        }
2378    }
2379
2380    @Override
2381    public void onStart() {
2382        super.onStart();
2383        if (this.reInitRequiredOnStart && this.conversation != null) {
2384            final Bundle extras = pendingExtras.pop();
2385            reInit(this.conversation, extras != null);
2386            if (extras != null) {
2387                processExtras(extras);
2388            }
2389        } else if (conversation == null
2390                && activity != null
2391                && activity.xmppConnectionService != null) {
2392            final String uuid = pendingConversationsUuid.pop();
2393            Log.d(
2394                    Config.LOGTAG,
2395                    "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid="
2396                            + uuid);
2397            if (uuid != null) {
2398                findAndReInitByUuidOrArchive(uuid);
2399            }
2400        }
2401    }
2402
2403    @Override
2404    public void onStop() {
2405        super.onStop();
2406        final Activity activity = getActivity();
2407        messageListAdapter.unregisterListenerInAudioPlayer();
2408        if (activity == null || !activity.isChangingConfigurations()) {
2409            hideSoftKeyboard(activity);
2410            messageListAdapter.stopAudioPlayer();
2411        }
2412        if (this.conversation != null) {
2413            final String msg = this.binding.textinput.getText().toString();
2414            storeNextMessage(msg);
2415            updateChatState(this.conversation, msg);
2416            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2417        }
2418        this.reInitRequiredOnStart = true;
2419    }
2420
2421    private void updateChatState(final Conversation conversation, final String msg) {
2422        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2423        Account.State status = conversation.getAccount().getStatus();
2424        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2425            activity.xmppConnectionService.sendChatState(conversation);
2426        }
2427    }
2428
2429    private void saveMessageDraftStopAudioPlayer() {
2430        final Conversation previousConversation = this.conversation;
2431        if (this.activity == null || this.binding == null || previousConversation == null) {
2432            return;
2433        }
2434        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2435        final String msg = this.binding.textinput.getText().toString();
2436        storeNextMessage(msg);
2437        updateChatState(this.conversation, msg);
2438        messageListAdapter.stopAudioPlayer();
2439        mediaPreviewAdapter.clearPreviews();
2440        toggleInputMethod();
2441    }
2442
2443    public void reInit(final Conversation conversation, final Bundle extras) {
2444        QuickLoader.set(conversation.getUuid());
2445        final boolean changedConversation = this.conversation != conversation;
2446        if (changedConversation) {
2447            this.saveMessageDraftStopAudioPlayer();
2448        }
2449        this.clearPending();
2450        if (this.reInit(conversation, extras != null)) {
2451            if (extras != null) {
2452                processExtras(extras);
2453            }
2454            this.reInitRequiredOnStart = false;
2455        } else {
2456            this.reInitRequiredOnStart = true;
2457            pendingExtras.push(extras);
2458        }
2459        resetUnreadMessagesCount();
2460    }
2461
2462    private void reInit(Conversation conversation) {
2463        reInit(conversation, false);
2464    }
2465
2466    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2467        if (conversation == null) {
2468            return false;
2469        }
2470        this.conversation = conversation;
2471        // once we set the conversation all is good and it will automatically do the right thing in
2472        // onStart()
2473        if (this.activity == null || this.binding == null) {
2474            return false;
2475        }
2476
2477        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2478            activity.onConversationArchived(this.conversation);
2479            return false;
2480        }
2481
2482        stopScrolling();
2483        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
2484
2485        if (this.conversation.isRead() && hasExtras) {
2486            Log.d(Config.LOGTAG, "trimming conversation");
2487            this.conversation.trim();
2488        }
2489
2490        setupIme();
2491
2492        final boolean scrolledToBottomAndNoPending =
2493                this.scrolledToBottom() && pendingScrollState.peek() == null;
2494
2495        this.binding.textSendButton.setContentDescription(
2496                activity.getString(R.string.send_message_to_x, conversation.getName()));
2497        this.binding.textinput.setKeyboardListener(null);
2498        this.binding.textinput.setText("");
2499        final boolean participating =
2500                conversation.getMode() == Conversational.MODE_SINGLE
2501                        || conversation.getMucOptions().participating();
2502        if (participating) {
2503            this.binding.textinput.append(this.conversation.getNextMessage());
2504        }
2505        this.binding.textinput.setKeyboardListener(this);
2506        messageListAdapter.updatePreferences();
2507        refresh(false);
2508        activity.invalidateOptionsMenu();
2509        this.conversation.messagesLoaded.set(true);
2510        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
2511
2512        if (hasExtras || scrolledToBottomAndNoPending) {
2513            resetUnreadMessagesCount();
2514            synchronized (this.messageList) {
2515                Log.d(Config.LOGTAG, "jump to first unread message");
2516                final Message first = conversation.getFirstUnreadMessage();
2517                final int bottom = Math.max(0, this.messageList.size() - 1);
2518                final int pos;
2519                final boolean jumpToBottom;
2520                if (first == null) {
2521                    pos = bottom;
2522                    jumpToBottom = true;
2523                } else {
2524                    int i = getIndexOf(first.getUuid(), this.messageList);
2525                    pos = i < 0 ? bottom : i;
2526                    jumpToBottom = false;
2527                }
2528                setSelection(pos, jumpToBottom);
2529            }
2530        }
2531
2532        this.binding.messagesView.post(this::fireReadEvent);
2533        // TODO if we only do this when this fragment is running on main it won't *bing* in tablet
2534        // layout which might be unnecessary since we can *see* it
2535        activity.xmppConnectionService
2536                .getNotificationService()
2537                .setOpenConversation(this.conversation);
2538        return true;
2539    }
2540
2541    private void resetUnreadMessagesCount() {
2542        lastMessageUuid = null;
2543        hideUnreadMessagesCount();
2544    }
2545
2546    private void hideUnreadMessagesCount() {
2547        if (this.binding == null) {
2548            return;
2549        }
2550        this.binding.scrollToBottomButton.setEnabled(false);
2551        this.binding.scrollToBottomButton.hide();
2552        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2553    }
2554
2555    private void setSelection(int pos, boolean jumpToBottom) {
2556        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2557        this.binding.messagesView.post(
2558                () -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2559        this.binding.messagesView.post(this::fireReadEvent);
2560    }
2561
2562    private boolean scrolledToBottom() {
2563        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2564    }
2565
2566    private void processExtras(final Bundle extras) {
2567        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2568        final String text = extras.getString(Intent.EXTRA_TEXT);
2569        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2570        final String postInitAction =
2571                extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2572        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2573        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2574        final boolean doNotAppend =
2575                extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2576        final String type = extras.getString(ConversationsActivity.EXTRA_TYPE);
2577        final List<Uri> uris = extractUris(extras);
2578        if (uris != null && uris.size() > 0) {
2579            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2580                mediaPreviewAdapter.addMediaPreviews(
2581                        Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2582            } else {
2583                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2584                mediaPreviewAdapter.addMediaPreviews(
2585                        Attachment.of(getActivity(), cleanedUris, type));
2586            }
2587            toggleInputMethod();
2588            return;
2589        }
2590        if (nick != null) {
2591            if (pm) {
2592                Jid jid = conversation.getJid();
2593                try {
2594                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2595                    privateMessageWith(next);
2596                } catch (final IllegalArgumentException ignored) {
2597                    // do nothing
2598                }
2599            } else {
2600                final MucOptions mucOptions = conversation.getMucOptions();
2601                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2602                    highlightInConference(nick);
2603                }
2604            }
2605        } else {
2606            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2607                mediaPreviewAdapter.addMediaPreviews(
2608                        Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2609                toggleInputMethod();
2610                return;
2611            } else if (text != null && asQuote) {
2612                quoteText(text);
2613            } else {
2614                appendText(text, doNotAppend);
2615            }
2616        }
2617        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2618            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2619            return;
2620        }
2621        final Message message =
2622                downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2623        if (message != null) {
2624            startDownloadable(message);
2625        }
2626    }
2627
2628    private List<Uri> extractUris(final Bundle extras) {
2629        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2630        if (uris != null) {
2631            return uris;
2632        }
2633        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2634        if (uri != null) {
2635            return Collections.singletonList(uri);
2636        } else {
2637            return null;
2638        }
2639    }
2640
2641    private List<Uri> cleanUris(final List<Uri> uris) {
2642        final Iterator<Uri> iterator = uris.iterator();
2643        while (iterator.hasNext()) {
2644            final Uri uri = iterator.next();
2645            if (FileBackend.weOwnFile(uri)) {
2646                iterator.remove();
2647                Toast.makeText(
2648                                getActivity(),
2649                                R.string.security_violation_not_attaching_file,
2650                                Toast.LENGTH_SHORT)
2651                        .show();
2652            }
2653        }
2654        return uris;
2655    }
2656
2657    private boolean showBlockSubmenu(View view) {
2658        final Jid jid = conversation.getJid();
2659        final boolean showReject =
2660                !conversation.isWithStranger()
2661                        && conversation
2662                                .getContact()
2663                                .getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2664        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2665        popupMenu.inflate(R.menu.block);
2666        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2667        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2668        popupMenu.setOnMenuItemClickListener(
2669                menuItem -> {
2670                    Blockable blockable;
2671                    switch (menuItem.getItemId()) {
2672                        case R.id.reject:
2673                            activity.xmppConnectionService.stopPresenceUpdatesTo(
2674                                    conversation.getContact());
2675                            updateSnackBar(conversation);
2676                            return true;
2677                        case R.id.block_domain:
2678                            blockable =
2679                                    conversation
2680                                            .getAccount()
2681                                            .getRoster()
2682                                            .getContact(jid.getDomain());
2683                            break;
2684                        default:
2685                            blockable = conversation;
2686                    }
2687                    BlockContactDialog.show(activity, blockable);
2688                    return true;
2689                });
2690        popupMenu.show();
2691        return true;
2692    }
2693
2694    private void updateSnackBar(final Conversation conversation) {
2695        final Account account = conversation.getAccount();
2696        final XmppConnection connection = account.getXmppConnection();
2697        final int mode = conversation.getMode();
2698        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2699        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2700            return;
2701        }
2702        if (account.getStatus() == Account.State.DISABLED) {
2703            showSnackbar(
2704                    R.string.this_account_is_disabled,
2705                    R.string.enable,
2706                    this.mEnableAccountListener);
2707        } else if (conversation.isBlocked()) {
2708            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2709        } else if (contact != null
2710                && !contact.showInRoster()
2711                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2712            showSnackbar(
2713                    R.string.contact_added_you,
2714                    R.string.add_back,
2715                    this.mAddBackClickListener,
2716                    this.mLongPressBlockListener);
2717        } else if (contact != null
2718                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2719            showSnackbar(
2720                    R.string.contact_asks_for_presence_subscription,
2721                    R.string.allow,
2722                    this.mAllowPresenceSubscription,
2723                    this.mLongPressBlockListener);
2724        } else if (mode == Conversation.MODE_MULTI
2725                && !conversation.getMucOptions().online()
2726                && account.getStatus() == Account.State.ONLINE) {
2727            switch (conversation.getMucOptions().getError()) {
2728                case NICK_IN_USE:
2729                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2730                    break;
2731                case NO_RESPONSE:
2732                    showSnackbar(R.string.joining_conference, 0, null);
2733                    break;
2734                case SERVER_NOT_FOUND:
2735                    if (conversation.receivedMessagesCount() > 0) {
2736                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2737                    } else {
2738                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2739                    }
2740                    break;
2741                case REMOTE_SERVER_TIMEOUT:
2742                    if (conversation.receivedMessagesCount() > 0) {
2743                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2744                    } else {
2745                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2746                    }
2747                    break;
2748                case PASSWORD_REQUIRED:
2749                    showSnackbar(
2750                            R.string.conference_requires_password,
2751                            R.string.enter_password,
2752                            enterPassword);
2753                    break;
2754                case BANNED:
2755                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2756                    break;
2757                case MEMBERS_ONLY:
2758                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2759                    break;
2760                case RESOURCE_CONSTRAINT:
2761                    showSnackbar(
2762                            R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2763                    break;
2764                case KICKED:
2765                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2766                    break;
2767                case UNKNOWN:
2768                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2769                    break;
2770                case INVALID_NICK:
2771                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2772                case SHUTDOWN:
2773                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2774                    break;
2775                case DESTROYED:
2776                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2777                    break;
2778                case NON_ANONYMOUS:
2779                    showSnackbar(
2780                            R.string.group_chat_will_make_your_jabber_id_public,
2781                            R.string.join,
2782                            acceptJoin);
2783                    break;
2784                default:
2785                    hideSnackbar();
2786                    break;
2787            }
2788        } else if (account.hasPendingPgpIntent(conversation)) {
2789            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2790        } else if (connection != null
2791                && connection.getFeatures().blocking()
2792                && conversation.countMessages() != 0
2793                && !conversation.isBlocked()
2794                && conversation.isWithStranger()) {
2795            showSnackbar(
2796                    R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2797        } else {
2798            hideSnackbar();
2799        }
2800    }
2801
2802    @Override
2803    public void refresh() {
2804        if (this.binding == null) {
2805            Log.d(
2806                    Config.LOGTAG,
2807                    "ConversationFragment.refresh() skipped updated because view binding was null");
2808            return;
2809        }
2810        if (this.conversation != null
2811                && this.activity != null
2812                && this.activity.xmppConnectionService != null) {
2813            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2814                activity.onConversationArchived(this.conversation);
2815                return;
2816            }
2817        }
2818        this.refresh(true);
2819    }
2820
2821    private void refresh(boolean notifyConversationRead) {
2822        synchronized (this.messageList) {
2823            if (this.conversation != null) {
2824                conversation.populateWithMessages(this.messageList);
2825                updateSnackBar(conversation);
2826                updateStatusMessages();
2827                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2828                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2829                    binding.unreadCountCustomView.setUnreadCount(
2830                            conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2831                }
2832                this.messageListAdapter.notifyDataSetChanged();
2833                updateChatMsgHint();
2834                if (notifyConversationRead && activity != null) {
2835                    binding.messagesView.post(this::fireReadEvent);
2836                }
2837                updateSendButton();
2838                updateEditablity();
2839            }
2840        }
2841    }
2842
2843    protected void messageSent() {
2844        mSendingPgpMessage.set(false);
2845        this.binding.textinput.setText("");
2846        if (conversation.setCorrectingMessage(null)) {
2847            this.binding.textinput.append(conversation.getDraftMessage());
2848            conversation.setDraftMessage(null);
2849        }
2850        storeNextMessage();
2851        updateChatMsgHint();
2852        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2853        final boolean prefScrollToBottom =
2854                p.getBoolean(
2855                        "scroll_to_bottom",
2856                        activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2857        if (prefScrollToBottom || scrolledToBottom()) {
2858            new Handler()
2859                    .post(
2860                            () -> {
2861                                int size = messageList.size();
2862                                this.binding.messagesView.setSelection(size - 1);
2863                            });
2864        }
2865    }
2866
2867    private boolean storeNextMessage() {
2868        return storeNextMessage(this.binding.textinput.getText().toString());
2869    }
2870
2871    private boolean storeNextMessage(String msg) {
2872        final boolean participating =
2873                conversation.getMode() == Conversational.MODE_SINGLE
2874                        || conversation.getMucOptions().participating();
2875        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED
2876                && participating
2877                && this.conversation.setNextMessage(msg)) {
2878            this.activity.xmppConnectionService.updateConversation(this.conversation);
2879            return true;
2880        }
2881        return false;
2882    }
2883
2884    public void doneSendingPgpMessage() {
2885        mSendingPgpMessage.set(false);
2886    }
2887
2888    public long getMaxHttpUploadSize(Conversation conversation) {
2889        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2890        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2891    }
2892
2893    private void updateEditablity() {
2894        boolean canWrite =
2895                this.conversation.getMode() == Conversation.MODE_SINGLE
2896                        || this.conversation.getMucOptions().participating()
2897                        || this.conversation.getNextCounterpart() != null;
2898        this.binding.textinput.setFocusable(canWrite);
2899        this.binding.textinput.setFocusableInTouchMode(canWrite);
2900        this.binding.textSendButton.setEnabled(canWrite);
2901        this.binding.textinput.setCursorVisible(canWrite);
2902        this.binding.textinput.setEnabled(canWrite);
2903    }
2904
2905    public void updateSendButton() {
2906        boolean hasAttachments =
2907                mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2908        final Conversation c = this.conversation;
2909        final Presence.Status status;
2910        final String text =
2911                this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2912        final SendButtonAction action;
2913        if (hasAttachments) {
2914            action = SendButtonAction.TEXT;
2915        } else {
2916            action = SendButtonTool.getAction(getActivity(), c, text);
2917        }
2918        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2919            if (activity != null
2920                    && activity.xmppConnectionService != null
2921                    && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2922                status = Presence.Status.OFFLINE;
2923            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2924                status = c.getContact().getShownStatus();
2925            } else {
2926                status =
2927                        c.getMucOptions().online()
2928                                ? Presence.Status.ONLINE
2929                                : Presence.Status.OFFLINE;
2930            }
2931        } else {
2932            status = Presence.Status.OFFLINE;
2933        }
2934        this.binding.textSendButton.setTag(action);
2935        final Activity activity = getActivity();
2936        if (activity != null) {
2937            this.binding.textSendButton.setImageResource(
2938                    SendButtonTool.getSendButtonImageResource(activity, action, status));
2939        }
2940    }
2941
2942    protected void updateStatusMessages() {
2943        DateSeparator.addAll(this.messageList);
2944        if (showLoadMoreMessages(conversation)) {
2945            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2946        }
2947        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2948            ChatState state = conversation.getIncomingChatState();
2949            if (state == ChatState.COMPOSING) {
2950                this.messageList.add(
2951                        Message.createStatusMessage(
2952                                conversation,
2953                                getString(R.string.contact_is_typing, conversation.getName())));
2954            } else if (state == ChatState.PAUSED) {
2955                this.messageList.add(
2956                        Message.createStatusMessage(
2957                                conversation,
2958                                getString(
2959                                        R.string.contact_has_stopped_typing,
2960                                        conversation.getName())));
2961            } else {
2962                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2963                    final Message message = this.messageList.get(i);
2964                    if (message.getType() != Message.TYPE_STATUS) {
2965                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2966                            return;
2967                        } else {
2968                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2969                                this.messageList.add(
2970                                        i + 1,
2971                                        Message.createStatusMessage(
2972                                                conversation,
2973                                                getString(
2974                                                        R.string.contact_has_read_up_to_this_point,
2975                                                        conversation.getName())));
2976                                return;
2977                            }
2978                        }
2979                    }
2980                }
2981            }
2982        } else {
2983            final MucOptions mucOptions = conversation.getMucOptions();
2984            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2985            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2986            ChatState state = ChatState.COMPOSING;
2987            List<MucOptions.User> users =
2988                    conversation.getMucOptions().getUsersWithChatState(state, 5);
2989            if (users.size() == 0) {
2990                state = ChatState.PAUSED;
2991                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2992            }
2993            if (mucOptions.isPrivateAndNonAnonymous()) {
2994                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2995                    final Set<ReadByMarker> markersForMessage =
2996                            messageList.get(i).getReadByMarkers();
2997                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2998                    for (ReadByMarker marker : markersForMessage) {
2999                        if (!ReadByMarker.contains(marker, addedMarkers)) {
3000                            addedMarkers.add(
3001                                    marker); // may be put outside this condition. set should do
3002                                             // dedup anyway
3003                            MucOptions.User user = mucOptions.findUser(marker);
3004                            if (user != null && !users.contains(user)) {
3005                                shownMarkers.add(user);
3006                            }
3007                        }
3008                    }
3009                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
3010                    final Message statusMessage;
3011                    final int size = shownMarkers.size();
3012                    if (size > 1) {
3013                        final String body;
3014                        if (size <= 4) {
3015                            body =
3016                                    getString(
3017                                            R.string.contacts_have_read_up_to_this_point,
3018                                            UIHelper.concatNames(shownMarkers));
3019                        } else if (ReadByMarker.allUsersRepresented(
3020                                allUsers, markersForMessage, markerForSender)) {
3021                            body = getString(R.string.everyone_has_read_up_to_this_point);
3022                        } else {
3023                            body =
3024                                    getString(
3025                                            R.string.contacts_and_n_more_have_read_up_to_this_point,
3026                                            UIHelper.concatNames(shownMarkers, 3),
3027                                            size - 3);
3028                        }
3029                        statusMessage = Message.createStatusMessage(conversation, body);
3030                        statusMessage.setCounterparts(shownMarkers);
3031                    } else if (size == 1) {
3032                        statusMessage =
3033                                Message.createStatusMessage(
3034                                        conversation,
3035                                        getString(
3036                                                R.string.contact_has_read_up_to_this_point,
3037                                                UIHelper.getDisplayName(shownMarkers.get(0))));
3038                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
3039                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
3040                    } else {
3041                        statusMessage = null;
3042                    }
3043                    if (statusMessage != null) {
3044                        this.messageList.add(i + 1, statusMessage);
3045                    }
3046                    addedMarkers.add(markerForSender);
3047                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
3048                        break;
3049                    }
3050                }
3051            }
3052            if (users.size() > 0) {
3053                Message statusMessage;
3054                if (users.size() == 1) {
3055                    MucOptions.User user = users.get(0);
3056                    int id =
3057                            state == ChatState.COMPOSING
3058                                    ? R.string.contact_is_typing
3059                                    : R.string.contact_has_stopped_typing;
3060                    statusMessage =
3061                            Message.createStatusMessage(
3062                                    conversation, getString(id, UIHelper.getDisplayName(user)));
3063                    statusMessage.setTrueCounterpart(user.getRealJid());
3064                    statusMessage.setCounterpart(user.getFullJid());
3065                } else {
3066                    int id =
3067                            state == ChatState.COMPOSING
3068                                    ? R.string.contacts_are_typing
3069                                    : R.string.contacts_have_stopped_typing;
3070                    statusMessage =
3071                            Message.createStatusMessage(
3072                                    conversation, getString(id, UIHelper.concatNames(users)));
3073                    statusMessage.setCounterparts(users);
3074                }
3075                this.messageList.add(statusMessage);
3076            }
3077        }
3078    }
3079
3080    private void stopScrolling() {
3081        long now = SystemClock.uptimeMillis();
3082        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
3083        binding.messagesView.dispatchTouchEvent(cancel);
3084    }
3085
3086    private boolean showLoadMoreMessages(final Conversation c) {
3087        if (activity == null || activity.xmppConnectionService == null) {
3088            return false;
3089        }
3090        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
3091        final MessageArchiveService service =
3092                activity.xmppConnectionService.getMessageArchiveService();
3093        return mam
3094                && (c.getLastClearHistory().getTimestamp() != 0
3095                        || (c.countMessages() == 0
3096                                && c.messagesLoaded.get()
3097                                && c.hasMessagesLeftOnServer()
3098                                && !service.queryInProgress(c)));
3099    }
3100
3101    private boolean hasMamSupport(final Conversation c) {
3102        if (c.getMode() == Conversation.MODE_SINGLE) {
3103            final XmppConnection connection = c.getAccount().getXmppConnection();
3104            return connection != null && connection.getFeatures().mam();
3105        } else {
3106            return c.getMucOptions().mamSupport();
3107        }
3108    }
3109
3110    protected void showSnackbar(
3111            final int message, final int action, final OnClickListener clickListener) {
3112        showSnackbar(message, action, clickListener, null);
3113    }
3114
3115    protected void showSnackbar(
3116            final int message,
3117            final int action,
3118            final OnClickListener clickListener,
3119            final View.OnLongClickListener longClickListener) {
3120        this.binding.snackbar.setVisibility(View.VISIBLE);
3121        this.binding.snackbar.setOnClickListener(null);
3122        this.binding.snackbarMessage.setText(message);
3123        this.binding.snackbarMessage.setOnClickListener(null);
3124        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
3125        if (action != 0) {
3126            this.binding.snackbarAction.setText(action);
3127        }
3128        this.binding.snackbarAction.setOnClickListener(clickListener);
3129        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
3130    }
3131
3132    protected void hideSnackbar() {
3133        this.binding.snackbar.setVisibility(View.GONE);
3134    }
3135
3136    protected void sendMessage(Message message) {
3137        activity.xmppConnectionService.sendMessage(message);
3138        messageSent();
3139    }
3140
3141    protected void sendPgpMessage(final Message message) {
3142        final XmppConnectionService xmppService = activity.xmppConnectionService;
3143        final Contact contact = message.getConversation().getContact();
3144        if (!activity.hasPgp()) {
3145            activity.showInstallPgpDialog();
3146            return;
3147        }
3148        if (conversation.getAccount().getPgpSignature() == null) {
3149            activity.announcePgp(
3150                    conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
3151            return;
3152        }
3153        if (!mSendingPgpMessage.compareAndSet(false, true)) {
3154            Log.d(Config.LOGTAG, "sending pgp message already in progress");
3155        }
3156        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3157            if (contact.getPgpKeyId() != 0) {
3158                xmppService
3159                        .getPgpEngine()
3160                        .hasKey(
3161                                contact,
3162                                new UiCallback<Contact>() {
3163
3164                                    @Override
3165                                    public void userInputRequired(
3166                                            PendingIntent pi, Contact contact) {
3167                                        startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
3168                                    }
3169
3170                                    @Override
3171                                    public void success(Contact contact) {
3172                                        encryptTextMessage(message);
3173                                    }
3174
3175                                    @Override
3176                                    public void error(int error, Contact contact) {
3177                                        activity.runOnUiThread(
3178                                                () ->
3179                                                        Toast.makeText(
3180                                                                        activity,
3181                                                                        R.string
3182                                                                                .unable_to_connect_to_keychain,
3183                                                                        Toast.LENGTH_SHORT)
3184                                                                .show());
3185                                        mSendingPgpMessage.set(false);
3186                                    }
3187                                });
3188
3189            } else {
3190                showNoPGPKeyDialog(
3191                        false,
3192                        (dialog, which) -> {
3193                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3194                            xmppService.updateConversation(conversation);
3195                            message.setEncryption(Message.ENCRYPTION_NONE);
3196                            xmppService.sendMessage(message);
3197                            messageSent();
3198                        });
3199            }
3200        } else {
3201            if (conversation.getMucOptions().pgpKeysInUse()) {
3202                if (!conversation.getMucOptions().everybodyHasKeys()) {
3203                    Toast warning =
3204                            Toast.makeText(
3205                                    getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
3206                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
3207                    warning.show();
3208                }
3209                encryptTextMessage(message);
3210            } else {
3211                showNoPGPKeyDialog(
3212                        true,
3213                        (dialog, which) -> {
3214                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3215                            message.setEncryption(Message.ENCRYPTION_NONE);
3216                            xmppService.updateConversation(conversation);
3217                            xmppService.sendMessage(message);
3218                            messageSent();
3219                        });
3220            }
3221        }
3222    }
3223
3224    public void encryptTextMessage(Message message) {
3225        activity.xmppConnectionService
3226                .getPgpEngine()
3227                .encrypt(
3228                        message,
3229                        new UiCallback<Message>() {
3230
3231                            @Override
3232                            public void userInputRequired(PendingIntent pi, Message message) {
3233                                startPendingIntent(pi, REQUEST_SEND_MESSAGE);
3234                            }
3235
3236                            @Override
3237                            public void success(Message message) {
3238                                // TODO the following two call can be made before the callback
3239                                getActivity().runOnUiThread(() -> messageSent());
3240                            }
3241
3242                            @Override
3243                            public void error(final int error, Message message) {
3244                                getActivity()
3245                                        .runOnUiThread(
3246                                                () -> {
3247                                                    doneSendingPgpMessage();
3248                                                    Toast.makeText(
3249                                                                    getActivity(),
3250                                                                    error == 0
3251                                                                            ? R.string
3252                                                                                    .unable_to_connect_to_keychain
3253                                                                            : error,
3254                                                                    Toast.LENGTH_SHORT)
3255                                                            .show();
3256                                                });
3257                            }
3258                        });
3259    }
3260
3261    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
3262        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
3263        builder.setIconAttribute(android.R.attr.alertDialogIcon);
3264        if (plural) {
3265            builder.setTitle(getString(R.string.no_pgp_keys));
3266            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
3267        } else {
3268            builder.setTitle(getString(R.string.no_pgp_key));
3269            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
3270        }
3271        builder.setNegativeButton(getString(R.string.cancel), null);
3272        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
3273        builder.create().show();
3274    }
3275
3276    public void appendText(String text, final boolean doNotAppend) {
3277        if (text == null) {
3278            return;
3279        }
3280        final Editable editable = this.binding.textinput.getText();
3281        String previous = editable == null ? "" : editable.toString();
3282        if (doNotAppend && !TextUtils.isEmpty(previous)) {
3283            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG)
3284                    .show();
3285            return;
3286        }
3287        if (UIHelper.isLastLineQuote(previous)) {
3288            text = '\n' + text;
3289        } else if (previous.length() != 0
3290                && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
3291            text = " " + text;
3292        }
3293        this.binding.textinput.append(text);
3294    }
3295
3296    @Override
3297    public boolean onEnterPressed(final boolean isCtrlPressed) {
3298        if (isCtrlPressed || enterIsSend()) {
3299            sendMessage();
3300            return true;
3301        }
3302        return false;
3303    }
3304
3305    private boolean enterIsSend() {
3306        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
3307        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
3308    }
3309
3310    public boolean onArrowUpCtrlPressed() {
3311        final Message lastEditableMessage =
3312                conversation == null ? null : conversation.getLastEditableMessage();
3313        if (lastEditableMessage != null) {
3314            correctMessage(lastEditableMessage);
3315            return true;
3316        } else {
3317            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG)
3318                    .show();
3319            return false;
3320        }
3321    }
3322
3323    @Override
3324    public void onTypingStarted() {
3325        final XmppConnectionService service =
3326                activity == null ? null : activity.xmppConnectionService;
3327        if (service == null) {
3328            return;
3329        }
3330        final Account.State status = conversation.getAccount().getStatus();
3331        if (status == Account.State.ONLINE
3332                && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
3333            service.sendChatState(conversation);
3334        }
3335        runOnUiThread(this::updateSendButton);
3336    }
3337
3338    @Override
3339    public void onTypingStopped() {
3340        final XmppConnectionService service =
3341                activity == null ? null : activity.xmppConnectionService;
3342        if (service == null) {
3343            return;
3344        }
3345        final Account.State status = conversation.getAccount().getStatus();
3346        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
3347            service.sendChatState(conversation);
3348        }
3349    }
3350
3351    @Override
3352    public void onTextDeleted() {
3353        final XmppConnectionService service =
3354                activity == null ? null : activity.xmppConnectionService;
3355        if (service == null) {
3356            return;
3357        }
3358        final Account.State status = conversation.getAccount().getStatus();
3359        if (status == Account.State.ONLINE
3360                && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
3361            service.sendChatState(conversation);
3362        }
3363        if (storeNextMessage()) {
3364            runOnUiThread(
3365                    () -> {
3366                        if (activity == null) {
3367                            return;
3368                        }
3369                        activity.onConversationsListItemUpdated();
3370                    });
3371        }
3372        runOnUiThread(this::updateSendButton);
3373    }
3374
3375    @Override
3376    public void onTextChanged() {
3377        if (conversation != null && conversation.getCorrectingMessage() != null) {
3378            runOnUiThread(this::updateSendButton);
3379        }
3380    }
3381
3382    @Override
3383    public boolean onTabPressed(boolean repeated) {
3384        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
3385            return false;
3386        }
3387        if (repeated) {
3388            completionIndex++;
3389        } else {
3390            lastCompletionLength = 0;
3391            completionIndex = 0;
3392            final String content = this.binding.textinput.getText().toString();
3393            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
3394            int start =
3395                    lastCompletionCursor > 0
3396                            ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1
3397                            : 0;
3398            firstWord = start == 0;
3399            incomplete = content.substring(start, lastCompletionCursor);
3400        }
3401        List<String> completions = new ArrayList<>();
3402        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
3403            String name = user.getName();
3404            if (name != null && name.startsWith(incomplete)) {
3405                completions.add(name + (firstWord ? ": " : " "));
3406            }
3407        }
3408        Collections.sort(completions);
3409        if (completions.size() > completionIndex) {
3410            String completion = completions.get(completionIndex).substring(incomplete.length());
3411            this.binding
3412                    .textinput
3413                    .getEditableText()
3414                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3415            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
3416            lastCompletionLength = completion.length();
3417        } else {
3418            completionIndex = -1;
3419            this.binding
3420                    .textinput
3421                    .getEditableText()
3422                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3423            lastCompletionLength = 0;
3424        }
3425        return true;
3426    }
3427
3428    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
3429        try {
3430            getActivity()
3431                    .startIntentSenderForResult(
3432                            pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
3433        } catch (final SendIntentException ignored) {
3434        }
3435    }
3436
3437    @Override
3438    public void onBackendConnected() {
3439        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
3440        String uuid = pendingConversationsUuid.pop();
3441        if (uuid != null) {
3442            if (!findAndReInitByUuidOrArchive(uuid)) {
3443                return;
3444            }
3445        } else {
3446            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
3447                clearPending();
3448                activity.onConversationArchived(conversation);
3449                return;
3450            }
3451        }
3452        ActivityResult activityResult = postponedActivityResult.pop();
3453        if (activityResult != null) {
3454            handleActivityResult(activityResult);
3455        }
3456        clearPending();
3457    }
3458
3459    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
3460        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
3461        if (conversation == null) {
3462            clearPending();
3463            activity.onConversationArchived(null);
3464            return false;
3465        }
3466        reInit(conversation);
3467        ScrollState scrollState = pendingScrollState.pop();
3468        String lastMessageUuid = pendingLastMessageUuid.pop();
3469        List<Attachment> attachments = pendingMediaPreviews.pop();
3470        if (scrollState != null) {
3471            setScrollPosition(scrollState, lastMessageUuid);
3472        }
3473        if (attachments != null && attachments.size() > 0) {
3474            Log.d(Config.LOGTAG, "had attachments on restore");
3475            mediaPreviewAdapter.addMediaPreviews(attachments);
3476            toggleInputMethod();
3477        }
3478        return true;
3479    }
3480
3481    private void clearPending() {
3482        if (postponedActivityResult.clear()) {
3483            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
3484            if (pendingTakePhotoUri.clear()) {
3485                Log.e(Config.LOGTAG, "cleared pending photo uri");
3486            }
3487        }
3488        if (pendingScrollState.clear()) {
3489            Log.e(Config.LOGTAG, "cleared scroll state");
3490        }
3491        if (pendingConversationsUuid.clear()) {
3492            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
3493        }
3494        if (pendingMediaPreviews.clear()) {
3495            Log.e(Config.LOGTAG, "cleared pending media previews");
3496        }
3497    }
3498
3499    public Conversation getConversation() {
3500        return conversation;
3501    }
3502
3503    @Override
3504    public void onContactPictureLongClicked(View v, final Message message) {
3505        final String fingerprint;
3506        if (message.getEncryption() == Message.ENCRYPTION_PGP
3507                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3508            fingerprint = "pgp";
3509        } else {
3510            fingerprint = message.getFingerprint();
3511        }
3512        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
3513        final Contact contact = message.getContact();
3514        if (message.getStatus() <= Message.STATUS_RECEIVED
3515                && (contact == null || !contact.isSelf())) {
3516            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
3517                final Jid cp = message.getCounterpart();
3518                if (cp == null || cp.isBareJid()) {
3519                    return;
3520                }
3521                final Jid tcp = message.getTrueCounterpart();
3522                final User userByRealJid =
3523                        tcp != null
3524                                ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp)
3525                                : null;
3526                final User user =
3527                        userByRealJid != null
3528                                ? userByRealJid
3529                                : conversation.getMucOptions().findUserByFullJid(cp);
3530                popupMenu.inflate(R.menu.muc_details_context);
3531                final Menu menu = popupMenu.getMenu();
3532                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(
3533                        activity, menu, conversation, user);
3534                popupMenu.setOnMenuItemClickListener(
3535                        menuItem ->
3536                                MucDetailsContextMenuHelper.onContextItemSelected(
3537                                        menuItem, user, activity, fingerprint));
3538            } else {
3539                popupMenu.inflate(R.menu.one_on_one_context);
3540                popupMenu.setOnMenuItemClickListener(
3541                        item -> {
3542                            switch (item.getItemId()) {
3543                                case R.id.action_contact_details:
3544                                    activity.switchToContactDetails(
3545                                            message.getContact(), fingerprint);
3546                                    break;
3547                                case R.id.action_show_qr_code:
3548                                    activity.showQrCode(
3549                                            "xmpp:"
3550                                                    + message.getContact()
3551                                                            .getJid()
3552                                                            .asBareJid()
3553                                                            .toEscapedString());
3554                                    break;
3555                            }
3556                            return true;
3557                        });
3558            }
3559        } else {
3560            popupMenu.inflate(R.menu.account_context);
3561            final Menu menu = popupMenu.getMenu();
3562            menu.findItem(R.id.action_manage_accounts)
3563                    .setVisible(QuickConversationsService.isConversations());
3564            popupMenu.setOnMenuItemClickListener(
3565                    item -> {
3566                        final XmppActivity activity = this.activity;
3567                        if (activity == null) {
3568                            Log.e(Config.LOGTAG, "Unable to perform action. no context provided");
3569                            return true;
3570                        }
3571                        switch (item.getItemId()) {
3572                            case R.id.action_show_qr_code:
3573                                activity.showQrCode(conversation.getAccount().getShareableUri());
3574                                break;
3575                            case R.id.action_account_details:
3576                                activity.switchToAccount(
3577                                        message.getConversation().getAccount(), fingerprint);
3578                                break;
3579                            case R.id.action_manage_accounts:
3580                                AccountUtils.launchManageAccounts(activity);
3581                                break;
3582                        }
3583                        return true;
3584                    });
3585        }
3586        popupMenu.show();
3587    }
3588
3589    @Override
3590    public void onContactPictureClicked(Message message) {
3591        String fingerprint;
3592        if (message.getEncryption() == Message.ENCRYPTION_PGP
3593                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3594            fingerprint = "pgp";
3595        } else {
3596            fingerprint = message.getFingerprint();
3597        }
3598        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3599        if (received) {
3600            if (message.getConversation() instanceof Conversation
3601                    && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3602                Jid tcp = message.getTrueCounterpart();
3603                Jid user = message.getCounterpart();
3604                if (user != null && !user.isBareJid()) {
3605                    final MucOptions mucOptions =
3606                            ((Conversation) message.getConversation()).getMucOptions();
3607                    if (mucOptions.participating()
3608                            || ((Conversation) message.getConversation()).getNextCounterpart()
3609                                    != null) {
3610                        if (!mucOptions.isUserInRoom(user)
3611                                && mucOptions.findUserByRealJid(
3612                                                tcp == null ? null : tcp.asBareJid())
3613                                        == null) {
3614                            Toast.makeText(
3615                                            getActivity(),
3616                                            activity.getString(
3617                                                    R.string.user_has_left_conference,
3618                                                    user.getResource()),
3619                                            Toast.LENGTH_SHORT)
3620                                    .show();
3621                        }
3622                        highlightInConference(user.getResource());
3623                    } else {
3624                        Toast.makeText(
3625                                        getActivity(),
3626                                        R.string.you_are_not_participating,
3627                                        Toast.LENGTH_SHORT)
3628                                .show();
3629                    }
3630                }
3631                return;
3632            } else {
3633                if (!message.getContact().isSelf()) {
3634                    activity.switchToContactDetails(message.getContact(), fingerprint);
3635                    return;
3636                }
3637            }
3638        }
3639        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3640    }
3641
3642    private Activity requireActivity() {
3643        final Activity activity = getActivity();
3644        if (activity == null) {
3645            throw new IllegalStateException("Activity not attached");
3646        }
3647        return activity;
3648    }
3649
3650    public class StaticPagerAdapter extends PagerAdapter {
3651        ViewPager mPager;
3652
3653        StaticPagerAdapter(ViewPager pager) {
3654            mPager = pager;
3655        }
3656
3657        @NonNull
3658        @Override
3659        public View instantiateItem(@NonNull ViewGroup container, int position) {
3660            return mPager.getChildAt(position);
3661        }
3662
3663        @Override
3664        public int getCount() {
3665            return 2;
3666        }
3667
3668        @Override
3669        public boolean isViewFromObject(@NonNull View view, @NonNull Object o) {
3670            return view == o;
3671        }
3672
3673        @Nullable
3674        @Override
3675        public CharSequence getPageTitle(int position) {
3676            switch (position) {
3677                case 0:
3678                    return "Conversation";
3679                case 1:
3680                    return "Commands";
3681                default:
3682                    return super.getPageTitle(position);
3683            }
3684        }
3685    }
3686}