ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
   4import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
   5import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
   6import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
   7import static eu.siacs.conversations.utils.PermissionUtils.audioGranted;
   8import static eu.siacs.conversations.utils.PermissionUtils.cameraGranted;
   9import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
  10import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
  11
  12import android.Manifest;
  13import android.annotation.SuppressLint;
  14import android.app.Activity;
  15import android.app.Fragment;
  16import android.app.FragmentManager;
  17import android.app.PendingIntent;
  18import android.content.ActivityNotFoundException;
  19import android.content.Context;
  20import android.content.DialogInterface;
  21import android.content.Intent;
  22import android.content.IntentSender.SendIntentException;
  23import android.content.SharedPreferences;
  24import android.content.pm.PackageManager;
  25import android.net.Uri;
  26import android.os.Build;
  27import android.os.Bundle;
  28import android.os.Handler;
  29import android.os.SystemClock;
  30import android.preference.PreferenceManager;
  31import android.provider.MediaStore;
  32import android.text.Editable;
  33import android.text.TextUtils;
  34import android.util.Log;
  35import android.view.ContextMenu;
  36import android.view.ContextMenu.ContextMenuInfo;
  37import android.view.Gravity;
  38import android.view.LayoutInflater;
  39import android.view.Menu;
  40import android.view.MenuInflater;
  41import android.view.MenuItem;
  42import android.view.MotionEvent;
  43import android.view.View;
  44import android.view.View.OnClickListener;
  45import android.view.ViewGroup;
  46import android.view.inputmethod.EditorInfo;
  47import android.view.inputmethod.InputMethodManager;
  48import android.widget.AbsListView;
  49import android.widget.AbsListView.OnScrollListener;
  50import android.widget.AdapterView;
  51import android.widget.AdapterView.AdapterContextMenuInfo;
  52import android.widget.CheckBox;
  53import android.widget.ListView;
  54import android.widget.PopupMenu;
  55import android.widget.TextView.OnEditorActionListener;
  56import android.widget.Toast;
  57
  58import androidx.annotation.IdRes;
  59import androidx.annotation.NonNull;
  60import androidx.annotation.StringRes;
  61import androidx.appcompat.app.AlertDialog;
  62import androidx.core.view.inputmethod.InputConnectionCompat;
  63import androidx.core.view.inputmethod.InputContentInfoCompat;
  64import androidx.databinding.DataBindingUtil;
  65
  66import com.google.common.base.Optional;
  67import com.google.common.collect.ImmutableList;
  68
  69import eu.siacs.conversations.Config;
  70import eu.siacs.conversations.R;
  71import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  72import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  73import eu.siacs.conversations.databinding.FragmentConversationBinding;
  74import eu.siacs.conversations.entities.Account;
  75import eu.siacs.conversations.entities.Blockable;
  76import eu.siacs.conversations.entities.Contact;
  77import eu.siacs.conversations.entities.Conversation;
  78import eu.siacs.conversations.entities.Conversational;
  79import eu.siacs.conversations.entities.DownloadableFile;
  80import eu.siacs.conversations.entities.Message;
  81import eu.siacs.conversations.entities.MucOptions;
  82import eu.siacs.conversations.entities.MucOptions.User;
  83import eu.siacs.conversations.entities.Presence;
  84import eu.siacs.conversations.entities.ReadByMarker;
  85import eu.siacs.conversations.entities.Transferable;
  86import eu.siacs.conversations.entities.TransferablePlaceholder;
  87import eu.siacs.conversations.http.HttpDownloadConnection;
  88import eu.siacs.conversations.persistance.FileBackend;
  89import eu.siacs.conversations.services.MessageArchiveService;
  90import eu.siacs.conversations.services.QuickConversationsService;
  91import eu.siacs.conversations.services.XmppConnectionService;
  92import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  93import eu.siacs.conversations.ui.adapter.MessageAdapter;
  94import eu.siacs.conversations.ui.util.ActivityResult;
  95import eu.siacs.conversations.ui.util.Attachment;
  96import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  97import eu.siacs.conversations.ui.util.DateSeparator;
  98import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
  99import eu.siacs.conversations.ui.util.ListViewUtils;
 100import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
 101import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
 102import eu.siacs.conversations.ui.util.PendingItem;
 103import eu.siacs.conversations.ui.util.PresenceSelector;
 104import eu.siacs.conversations.ui.util.ScrollState;
 105import eu.siacs.conversations.ui.util.SendButtonAction;
 106import eu.siacs.conversations.ui.util.SendButtonTool;
 107import eu.siacs.conversations.ui.util.ShareUtil;
 108import eu.siacs.conversations.ui.util.ViewUtil;
 109import eu.siacs.conversations.ui.widget.EditMessage;
 110import eu.siacs.conversations.utils.AccountUtils;
 111import eu.siacs.conversations.utils.Compatibility;
 112import eu.siacs.conversations.utils.GeoHelper;
 113import eu.siacs.conversations.utils.MessageUtils;
 114import eu.siacs.conversations.utils.NickValidityChecker;
 115import eu.siacs.conversations.utils.PermissionUtils;
 116import eu.siacs.conversations.utils.QuickLoader;
 117import eu.siacs.conversations.utils.StylingHelper;
 118import eu.siacs.conversations.utils.TimeFrameUtils;
 119import eu.siacs.conversations.utils.UIHelper;
 120import eu.siacs.conversations.xmpp.Jid;
 121import eu.siacs.conversations.xmpp.XmppConnection;
 122import eu.siacs.conversations.xmpp.chatstate.ChatState;
 123import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
 124import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 125import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 126import eu.siacs.conversations.xmpp.jingle.Media;
 127import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
 128import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 129
 130import org.jetbrains.annotations.NotNull;
 131
 132import java.util.ArrayList;
 133import java.util.Arrays;
 134import java.util.Collection;
 135import java.util.Collections;
 136import java.util.HashSet;
 137import java.util.Iterator;
 138import java.util.List;
 139import java.util.Set;
 140import java.util.UUID;
 141import java.util.concurrent.atomic.AtomicBoolean;
 142
 143public class ConversationFragment extends XmppFragment
 144        implements EditMessage.KeyboardListener,
 145                MessageAdapter.OnContactPictureLongClicked,
 146                MessageAdapter.OnContactPictureClicked {
 147
 148    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 149    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 150    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 151    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 152    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 153    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 154    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 155    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 156    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 157    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 158    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 159    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 160    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 161    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 162    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 163    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 164    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 165
 166    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 167    public static final String STATE_CONVERSATION_UUID =
 168            ConversationFragment.class.getName() + ".uuid";
 169    public static final String STATE_SCROLL_POSITION =
 170            ConversationFragment.class.getName() + ".scroll_position";
 171    public static final String STATE_PHOTO_URI =
 172            ConversationFragment.class.getName() + ".media_previews";
 173    public static final String STATE_MEDIA_PREVIEWS =
 174            ConversationFragment.class.getName() + ".take_photo_uri";
 175    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 176
 177    private final List<Message> messageList = new ArrayList<>();
 178    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 179    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 180    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 181    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 182    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 183    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 184    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 185    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 186    public Uri mPendingEditorContent = null;
 187    protected MessageAdapter messageListAdapter;
 188    private MediaPreviewAdapter mediaPreviewAdapter;
 189    private String lastMessageUuid = null;
 190    private Conversation conversation;
 191    private FragmentConversationBinding binding;
 192    private Toast messageLoaderToast;
 193    private ConversationsActivity activity;
 194    private boolean reInitRequiredOnStart = true;
 195    private final OnClickListener clickToMuc =
 196            new OnClickListener() {
 197
 198                @Override
 199                public void onClick(View v) {
 200                    ConferenceDetailsActivity.open(getActivity(), conversation);
 201                }
 202            };
 203    private final OnClickListener leaveMuc =
 204            new OnClickListener() {
 205
 206                @Override
 207                public void onClick(View v) {
 208                    activity.xmppConnectionService.archiveConversation(conversation);
 209                }
 210            };
 211    private final OnClickListener joinMuc =
 212            new OnClickListener() {
 213
 214                @Override
 215                public void onClick(View v) {
 216                    activity.xmppConnectionService.joinMuc(conversation);
 217                }
 218            };
 219
 220    private final OnClickListener acceptJoin =
 221            new OnClickListener() {
 222                @Override
 223                public void onClick(View v) {
 224                    conversation.setAttribute("accept_non_anonymous", true);
 225                    activity.xmppConnectionService.updateConversation(conversation);
 226                    activity.xmppConnectionService.joinMuc(conversation);
 227                }
 228            };
 229
 230    private final OnClickListener enterPassword =
 231            new OnClickListener() {
 232
 233                @Override
 234                public void onClick(View v) {
 235                    MucOptions muc = conversation.getMucOptions();
 236                    String password = muc.getPassword();
 237                    if (password == null) {
 238                        password = "";
 239                    }
 240                    activity.quickPasswordEdit(
 241                            password,
 242                            value -> {
 243                                activity.xmppConnectionService.providePasswordForMuc(
 244                                        conversation, value);
 245                                return null;
 246                            });
 247                }
 248            };
 249    private final OnScrollListener mOnScrollListener =
 250            new OnScrollListener() {
 251
 252                @Override
 253                public void onScrollStateChanged(AbsListView view, int scrollState) {
 254                    if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 255                        fireReadEvent();
 256                    }
 257                }
 258
 259                @Override
 260                public void onScroll(
 261                        final AbsListView view,
 262                        int firstVisibleItem,
 263                        int visibleItemCount,
 264                        int totalItemCount) {
 265                    toggleScrollDownButton(view);
 266                    synchronized (ConversationFragment.this.messageList) {
 267                        if (firstVisibleItem < 5
 268                                && conversation != null
 269                                && conversation.messagesLoaded.compareAndSet(true, false)
 270                                && messageList.size() > 0) {
 271                            long timestamp;
 272                            if (messageList.get(0).getType() == Message.TYPE_STATUS
 273                                    && messageList.size() >= 2) {
 274                                timestamp = messageList.get(1).getTimeSent();
 275                            } else {
 276                                timestamp = messageList.get(0).getTimeSent();
 277                            }
 278                            activity.xmppConnectionService.loadMoreMessages(
 279                                    conversation,
 280                                    timestamp,
 281                                    new XmppConnectionService.OnMoreMessagesLoaded() {
 282                                        @Override
 283                                        public void onMoreMessagesLoaded(
 284                                                final int c, final Conversation conversation) {
 285                                            if (ConversationFragment.this.conversation
 286                                                    != conversation) {
 287                                                conversation.messagesLoaded.set(true);
 288                                                return;
 289                                            }
 290                                            runOnUiThread(
 291                                                    () -> {
 292                                                        synchronized (messageList) {
 293                                                            final int oldPosition =
 294                                                                    binding.messagesView
 295                                                                            .getFirstVisiblePosition();
 296                                                            Message message = null;
 297                                                            int childPos;
 298                                                            for (childPos = 0;
 299                                                                    childPos + oldPosition
 300                                                                            < messageList.size();
 301                                                                    ++childPos) {
 302                                                                message =
 303                                                                        messageList.get(
 304                                                                                oldPosition
 305                                                                                        + childPos);
 306                                                                if (message.getType()
 307                                                                        != Message.TYPE_STATUS) {
 308                                                                    break;
 309                                                                }
 310                                                            }
 311                                                            final String uuid =
 312                                                                    message != null
 313                                                                            ? message.getUuid()
 314                                                                            : null;
 315                                                            View v =
 316                                                                    binding.messagesView.getChildAt(
 317                                                                            childPos);
 318                                                            final int pxOffset =
 319                                                                    (v == null) ? 0 : v.getTop();
 320                                                            ConversationFragment.this.conversation
 321                                                                    .populateWithMessages(
 322                                                                            ConversationFragment
 323                                                                                    .this
 324                                                                                    .messageList);
 325                                                            try {
 326                                                                updateStatusMessages();
 327                                                            } catch (IllegalStateException e) {
 328                                                                Log.d(
 329                                                                        Config.LOGTAG,
 330                                                                        "caught illegal state exception while updating status messages");
 331                                                            }
 332                                                            messageListAdapter
 333                                                                    .notifyDataSetChanged();
 334                                                            int pos =
 335                                                                    Math.max(
 336                                                                            getIndexOf(
 337                                                                                    uuid,
 338                                                                                    messageList),
 339                                                                            0);
 340                                                            binding.messagesView
 341                                                                    .setSelectionFromTop(
 342                                                                            pos, pxOffset);
 343                                                            if (messageLoaderToast != null) {
 344                                                                messageLoaderToast.cancel();
 345                                                            }
 346                                                            conversation.messagesLoaded.set(true);
 347                                                        }
 348                                                    });
 349                                        }
 350
 351                                        @Override
 352                                        public void informUser(final int resId) {
 353
 354                                            runOnUiThread(
 355                                                    () -> {
 356                                                        if (messageLoaderToast != null) {
 357                                                            messageLoaderToast.cancel();
 358                                                        }
 359                                                        if (ConversationFragment.this.conversation
 360                                                                != conversation) {
 361                                                            return;
 362                                                        }
 363                                                        messageLoaderToast =
 364                                                                Toast.makeText(
 365                                                                        view.getContext(),
 366                                                                        resId,
 367                                                                        Toast.LENGTH_LONG);
 368                                                        messageLoaderToast.show();
 369                                                    });
 370                                        }
 371                                    });
 372                        }
 373                    }
 374                }
 375            };
 376    private final EditMessage.OnCommitContentListener mEditorContentListener =
 377            new EditMessage.OnCommitContentListener() {
 378                @Override
 379                public boolean onCommitContent(
 380                        InputContentInfoCompat inputContentInfo,
 381                        int flags,
 382                        Bundle opts,
 383                        String[] contentMimeTypes) {
 384                    // try to get permission to read the image, if applicable
 385                    if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION)
 386                            != 0) {
 387                        try {
 388                            inputContentInfo.requestPermission();
 389                        } catch (Exception e) {
 390                            Log.e(
 391                                    Config.LOGTAG,
 392                                    "InputContentInfoCompat#requestPermission() failed.",
 393                                    e);
 394                            Toast.makeText(
 395                                            getActivity(),
 396                                            activity.getString(
 397                                                    R.string.no_permission_to_access_x,
 398                                                    inputContentInfo.getDescription()),
 399                                            Toast.LENGTH_LONG)
 400                                    .show();
 401                            return false;
 402                        }
 403                    }
 404                    if (hasPermissions(
 405                            REQUEST_ADD_EDITOR_CONTENT,
 406                            Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 407                        attachEditorContentToConversation(inputContentInfo.getContentUri());
 408                    } else {
 409                        mPendingEditorContent = inputContentInfo.getContentUri();
 410                    }
 411                    return true;
 412                }
 413            };
 414    private Message selectedMessage;
 415    private final OnClickListener mEnableAccountListener =
 416            new OnClickListener() {
 417                @Override
 418                public void onClick(View v) {
 419                    final Account account = conversation == null ? null : conversation.getAccount();
 420                    if (account != null) {
 421                        account.setOption(Account.OPTION_SOFT_DISABLED, false);
 422                        account.setOption(Account.OPTION_DISABLED, false);
 423                        activity.xmppConnectionService.updateAccount(account);
 424                    }
 425                }
 426            };
 427    private final OnClickListener mUnblockClickListener =
 428            new OnClickListener() {
 429                @Override
 430                public void onClick(final View v) {
 431                    v.post(() -> v.setVisibility(View.INVISIBLE));
 432                    if (conversation.isDomainBlocked()) {
 433                        BlockContactDialog.show(activity, conversation);
 434                    } else {
 435                        unblockConversation(conversation);
 436                    }
 437                }
 438            };
 439    private final OnClickListener mBlockClickListener = this::showBlockSubmenu;
 440    private final OnClickListener mAddBackClickListener =
 441            new OnClickListener() {
 442
 443                @Override
 444                public void onClick(View v) {
 445                    final Contact contact = conversation == null ? null : conversation.getContact();
 446                    if (contact != null) {
 447                        activity.xmppConnectionService.createContact(contact, true);
 448                        activity.switchToContactDetails(contact);
 449                    }
 450                }
 451            };
 452    private final View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 453    private final OnClickListener mAllowPresenceSubscription =
 454            new OnClickListener() {
 455                @Override
 456                public void onClick(View v) {
 457                    final Contact contact = conversation == null ? null : conversation.getContact();
 458                    if (contact != null) {
 459                        activity.xmppConnectionService.sendPresencePacket(
 460                                contact.getAccount(),
 461                                activity.xmppConnectionService
 462                                        .getPresenceGenerator()
 463                                        .sendPresenceUpdatesTo(contact));
 464                        hideSnackbar();
 465                    }
 466                }
 467            };
 468    protected OnClickListener clickToDecryptListener =
 469            new OnClickListener() {
 470
 471                @Override
 472                public void onClick(View v) {
 473                    PendingIntent pendingIntent =
 474                            conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 475                    if (pendingIntent != null) {
 476                        try {
 477                            getActivity()
 478                                    .startIntentSenderForResult(
 479                                            pendingIntent.getIntentSender(),
 480                                            REQUEST_DECRYPT_PGP,
 481                                            null,
 482                                            0,
 483                                            0,
 484                                            0);
 485                        } catch (SendIntentException e) {
 486                            Toast.makeText(
 487                                            getActivity(),
 488                                            R.string.unable_to_connect_to_keychain,
 489                                            Toast.LENGTH_SHORT)
 490                                    .show();
 491                            conversation
 492                                    .getAccount()
 493                                    .getPgpDecryptionService()
 494                                    .continueDecryption(true);
 495                        }
 496                    }
 497                    updateSnackBar(conversation);
 498                }
 499            };
 500    private final AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 501    private final OnEditorActionListener mEditorActionListener =
 502            (v, actionId, event) -> {
 503                if (actionId == EditorInfo.IME_ACTION_SEND) {
 504                    InputMethodManager imm =
 505                            (InputMethodManager)
 506                                    activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 507                    if (imm != null && imm.isFullscreenMode()) {
 508                        imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 509                    }
 510                    sendMessage();
 511                    return true;
 512                } else {
 513                    return false;
 514                }
 515            };
 516    private final OnClickListener mScrollButtonListener =
 517            new OnClickListener() {
 518
 519                @Override
 520                public void onClick(View v) {
 521                    stopScrolling();
 522                    setSelection(binding.messagesView.getCount() - 1, true);
 523                }
 524            };
 525    private final OnClickListener mSendButtonListener =
 526            new OnClickListener() {
 527
 528                @Override
 529                public void onClick(View v) {
 530                    Object tag = v.getTag();
 531                    if (tag instanceof SendButtonAction) {
 532                        SendButtonAction action = (SendButtonAction) tag;
 533                        switch (action) {
 534                            case TAKE_PHOTO:
 535                            case RECORD_VIDEO:
 536                            case SEND_LOCATION:
 537                            case RECORD_VOICE:
 538                            case CHOOSE_PICTURE:
 539                                attachFile(action.toChoice());
 540                                break;
 541                            case CANCEL:
 542                                if (conversation != null) {
 543                                    if (conversation.setCorrectingMessage(null)) {
 544                                        binding.textinput.setText("");
 545                                        binding.textinput.append(conversation.getDraftMessage());
 546                                        conversation.setDraftMessage(null);
 547                                    } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 548                                        conversation.setNextCounterpart(null);
 549                                        binding.textinput.setText("");
 550                                    } else {
 551                                        binding.textinput.setText("");
 552                                    }
 553                                    updateChatMsgHint();
 554                                    updateSendButton();
 555                                    updateEditablity();
 556                                }
 557                                break;
 558                            default:
 559                                sendMessage();
 560                        }
 561                    } else {
 562                        sendMessage();
 563                    }
 564                }
 565            };
 566    private int completionIndex = 0;
 567    private int lastCompletionLength = 0;
 568    private String incomplete;
 569    private int lastCompletionCursor;
 570    private boolean firstWord = false;
 571    private Message mPendingDownloadableMessage;
 572
 573    private static ConversationFragment findConversationFragment(Activity activity) {
 574        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 575        if (fragment instanceof ConversationFragment) {
 576            return (ConversationFragment) fragment;
 577        }
 578        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 579        if (fragment instanceof ConversationFragment) {
 580            return (ConversationFragment) fragment;
 581        }
 582        return null;
 583    }
 584
 585    public static void startStopPending(Activity activity) {
 586        ConversationFragment fragment = findConversationFragment(activity);
 587        if (fragment != null) {
 588            fragment.messageListAdapter.startStopPending();
 589        }
 590    }
 591
 592    public static void downloadFile(Activity activity, Message message) {
 593        ConversationFragment fragment = findConversationFragment(activity);
 594        if (fragment != null) {
 595            fragment.startDownloadable(message);
 596        }
 597    }
 598
 599    public static void registerPendingMessage(Activity activity, Message message) {
 600        ConversationFragment fragment = findConversationFragment(activity);
 601        if (fragment != null) {
 602            fragment.pendingMessage.push(message);
 603        }
 604    }
 605
 606    public static void openPendingMessage(Activity activity) {
 607        ConversationFragment fragment = findConversationFragment(activity);
 608        if (fragment != null) {
 609            Message message = fragment.pendingMessage.pop();
 610            if (message != null) {
 611                fragment.messageListAdapter.openDownloadable(message);
 612            }
 613        }
 614    }
 615
 616    public static Conversation getConversation(Activity activity) {
 617        return getConversation(activity, R.id.secondary_fragment);
 618    }
 619
 620    private static Conversation getConversation(Activity activity, @IdRes int res) {
 621        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 622        if (fragment instanceof ConversationFragment) {
 623            return ((ConversationFragment) fragment).getConversation();
 624        } else {
 625            return null;
 626        }
 627    }
 628
 629    public static ConversationFragment get(Activity activity) {
 630        FragmentManager fragmentManager = activity.getFragmentManager();
 631        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 632        if (fragment instanceof ConversationFragment) {
 633            return (ConversationFragment) fragment;
 634        } else {
 635            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 636            return fragment instanceof ConversationFragment
 637                    ? (ConversationFragment) fragment
 638                    : null;
 639        }
 640    }
 641
 642    public static Conversation getConversationReliable(Activity activity) {
 643        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 644        if (conversation != null) {
 645            return conversation;
 646        }
 647        return getConversation(activity, R.id.main_fragment);
 648    }
 649
 650    private static boolean scrolledToBottom(AbsListView listView) {
 651        final int count = listView.getCount();
 652        if (count == 0) {
 653            return true;
 654        } else if (listView.getLastVisiblePosition() == count - 1) {
 655            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 656            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 657        } else {
 658            return false;
 659        }
 660    }
 661
 662    private void toggleScrollDownButton() {
 663        toggleScrollDownButton(binding.messagesView);
 664    }
 665
 666    private void toggleScrollDownButton(AbsListView listView) {
 667        if (conversation == null) {
 668            return;
 669        }
 670        if (scrolledToBottom(listView)) {
 671            lastMessageUuid = null;
 672            hideUnreadMessagesCount();
 673        } else {
 674            binding.scrollToBottomButton.setEnabled(true);
 675            binding.scrollToBottomButton.show();
 676            if (lastMessageUuid == null) {
 677                lastMessageUuid = conversation.getLatestMessage().getUuid();
 678            }
 679            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 680                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 681            }
 682        }
 683    }
 684
 685    private int getIndexOf(String uuid, List<Message> messages) {
 686        if (uuid == null) {
 687            return messages.size() - 1;
 688        }
 689        for (int i = 0; i < messages.size(); ++i) {
 690            if (uuid.equals(messages.get(i).getUuid())) {
 691                return i;
 692            } else {
 693                Message next = messages.get(i);
 694                while (next != null && next.wasMergedIntoPrevious()) {
 695                    if (uuid.equals(next.getUuid())) {
 696                        return i;
 697                    }
 698                    next = next.next();
 699                }
 700            }
 701        }
 702        return -1;
 703    }
 704
 705    private ScrollState getScrollPosition() {
 706        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 707        if (listView == null
 708                || listView.getCount() == 0
 709                || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 710            return null;
 711        } else {
 712            final int pos = listView.getFirstVisiblePosition();
 713            final View view = listView.getChildAt(0);
 714            if (view == null) {
 715                return null;
 716            } else {
 717                return new ScrollState(pos, view.getTop());
 718            }
 719        }
 720    }
 721
 722    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 723        if (scrollPosition != null) {
 724
 725            this.lastMessageUuid = lastMessageUuid;
 726            if (lastMessageUuid != null) {
 727                binding.unreadCountCustomView.setUnreadCount(
 728                        conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 729            }
 730            // TODO maybe this needs a 'post'
 731            this.binding.messagesView.setSelectionFromTop(
 732                    scrollPosition.position, scrollPosition.offset);
 733            toggleScrollDownButton();
 734        }
 735    }
 736
 737    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 738        if (conversation == null) {
 739            return;
 740        }
 741        activity.xmppConnectionService.attachLocationToConversation(
 742                conversation,
 743                uri,
 744                new UiCallback<Message>() {
 745
 746                    @Override
 747                    public void success(Message message) {}
 748
 749                    @Override
 750                    public void error(int errorCode, Message object) {
 751                        // TODO show possible pgp error
 752                    }
 753
 754                    @Override
 755                    public void userInputRequired(PendingIntent pi, Message object) {}
 756                });
 757    }
 758
 759    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 760        if (conversation == null) {
 761            return;
 762        }
 763        final Toast prepareFileToast =
 764                Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 765        prepareFileToast.show();
 766        activity.delegateUriPermissionsToService(uri);
 767        activity.xmppConnectionService.attachFileToConversation(
 768                conversation,
 769                uri,
 770                type,
 771                new UiInformableCallback<Message>() {
 772                    @Override
 773                    public void inform(final String text) {
 774                        hidePrepareFileToast(prepareFileToast);
 775                        runOnUiThread(() -> activity.replaceToast(text));
 776                    }
 777
 778                    @Override
 779                    public void success(Message message) {
 780                        runOnUiThread(() -> activity.hideToast());
 781                        hidePrepareFileToast(prepareFileToast);
 782                    }
 783
 784                    @Override
 785                    public void error(final int errorCode, Message message) {
 786                        hidePrepareFileToast(prepareFileToast);
 787                        runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 788                    }
 789
 790                    @Override
 791                    public void userInputRequired(PendingIntent pi, Message message) {
 792                        hidePrepareFileToast(prepareFileToast);
 793                    }
 794                });
 795    }
 796
 797    public void attachEditorContentToConversation(Uri uri) {
 798        mediaPreviewAdapter.addMediaPreviews(
 799                Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 800        toggleInputMethod();
 801    }
 802
 803    private void attachImageToConversation(Conversation conversation, Uri uri, String type) {
 804        if (conversation == null) {
 805            return;
 806        }
 807        final Toast prepareFileToast =
 808                Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 809        prepareFileToast.show();
 810        activity.delegateUriPermissionsToService(uri);
 811        activity.xmppConnectionService.attachImageToConversation(
 812                conversation,
 813                uri,
 814                type,
 815                new UiCallback<Message>() {
 816
 817                    @Override
 818                    public void userInputRequired(PendingIntent pi, Message object) {
 819                        hidePrepareFileToast(prepareFileToast);
 820                    }
 821
 822                    @Override
 823                    public void success(Message message) {
 824                        hidePrepareFileToast(prepareFileToast);
 825                    }
 826
 827                    @Override
 828                    public void error(final int error, final Message message) {
 829                        hidePrepareFileToast(prepareFileToast);
 830                        final ConversationsActivity activity = ConversationFragment.this.activity;
 831                        if (activity == null) {
 832                            return;
 833                        }
 834                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 835                    }
 836                });
 837    }
 838
 839    private void hidePrepareFileToast(final Toast prepareFileToast) {
 840        if (prepareFileToast != null && activity != null) {
 841            activity.runOnUiThread(prepareFileToast::cancel);
 842        }
 843    }
 844
 845    private void sendMessage() {
 846        if (mediaPreviewAdapter.hasAttachments()) {
 847            commitAttachments();
 848            return;
 849        }
 850        final Editable text = this.binding.textinput.getText();
 851        final String body = text == null ? "" : text.toString();
 852        final Conversation conversation = this.conversation;
 853        if (body.length() == 0 || conversation == null) {
 854            return;
 855        }
 856        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_TEXT)) {
 857            return;
 858        }
 859        final Message message;
 860        if (conversation.getCorrectingMessage() == null) {
 861            message = new Message(conversation, body, conversation.getNextEncryption());
 862            Message.configurePrivateMessage(message);
 863        } else {
 864            message = conversation.getCorrectingMessage();
 865            message.setBody(body);
 866            message.putEdited(message.getUuid(), message.getServerMsgId());
 867            message.setServerMsgId(null);
 868            message.setUuid(UUID.randomUUID().toString());
 869        }
 870        switch (conversation.getNextEncryption()) {
 871            case Message.ENCRYPTION_PGP:
 872                sendPgpMessage(message);
 873                break;
 874            default:
 875                sendMessage(message);
 876        }
 877    }
 878
 879    private boolean trustKeysIfNeeded(final Conversation conversation, final int requestCode) {
 880        return conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL
 881                && trustKeysIfNeeded(requestCode);
 882    }
 883
 884    protected boolean trustKeysIfNeeded(int requestCode) {
 885        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 886        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 887        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 888        boolean hasUndecidedOwn =
 889                !axolotlService
 890                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided())
 891                        .isEmpty();
 892        boolean hasUndecidedContacts =
 893                !axolotlService
 894                        .getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets)
 895                        .isEmpty();
 896        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 897        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 898        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 899        if (hasUndecidedOwn
 900                || hasUndecidedContacts
 901                || hasPendingKeys
 902                || hasNoTrustedKeys
 903                || hasUnaccepted
 904                || downloadInProgress) {
 905            axolotlService.createSessionsIfNeeded(conversation);
 906            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 907            String[] contacts = new String[targets.size()];
 908            for (int i = 0; i < contacts.length; ++i) {
 909                contacts[i] = targets.get(i).toString();
 910            }
 911            intent.putExtra("contacts", contacts);
 912            intent.putExtra(
 913                    EXTRA_ACCOUNT,
 914                    conversation.getAccount().getJid().asBareJid().toEscapedString());
 915            intent.putExtra("conversation", conversation.getUuid());
 916            startActivityForResult(intent, requestCode);
 917            return true;
 918        } else {
 919            return false;
 920        }
 921    }
 922
 923    public void updateChatMsgHint() {
 924        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 925        if (conversation.getCorrectingMessage() != null) {
 926            this.binding.textInputHint.setVisibility(View.GONE);
 927            this.binding.textinput.setHint(R.string.send_corrected_message);
 928        } else if (multi && conversation.getNextCounterpart() != null) {
 929            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 930            this.binding.textInputHint.setVisibility(View.VISIBLE);
 931            this.binding.textInputHint.setText(
 932                    getString(
 933                            R.string.send_private_message_to,
 934                            conversation.getNextCounterpart().getResource()));
 935        } else if (multi && !conversation.getMucOptions().participating()) {
 936            this.binding.textInputHint.setVisibility(View.GONE);
 937            this.binding.textinput.setHint(R.string.you_are_not_participating);
 938        } else {
 939            this.binding.textInputHint.setVisibility(View.GONE);
 940            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 941            getActivity().invalidateOptionsMenu();
 942        }
 943    }
 944
 945    public void setupIme() {
 946        this.binding.textinput.refreshIme();
 947    }
 948
 949    private void handleActivityResult(ActivityResult activityResult) {
 950        if (activityResult.resultCode == Activity.RESULT_OK) {
 951            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 952        } else {
 953            handleNegativeActivityResult(activityResult.requestCode);
 954        }
 955    }
 956
 957    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 958        switch (requestCode) {
 959            case REQUEST_TRUST_KEYS_TEXT:
 960                sendMessage();
 961                break;
 962            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 963                commitAttachments();
 964                break;
 965            case REQUEST_START_AUDIO_CALL:
 966                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
 967                break;
 968            case REQUEST_START_VIDEO_CALL:
 969                triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
 970                break;
 971            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 972                final List<Attachment> imageUris =
 973                        Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 974                mediaPreviewAdapter.addMediaPreviews(imageUris);
 975                toggleInputMethod();
 976                break;
 977            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 978                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 979                if (takePhotoUri != null) {
 980                    mediaPreviewAdapter.addMediaPreviews(
 981                            Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 982                    toggleInputMethod();
 983                } else {
 984                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 985                }
 986                break;
 987            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 988            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 989            case ATTACHMENT_CHOICE_RECORD_VOICE:
 990                final Attachment.Type type =
 991                        requestCode == ATTACHMENT_CHOICE_RECORD_VOICE
 992                                ? Attachment.Type.RECORDING
 993                                : Attachment.Type.FILE;
 994                final List<Attachment> fileUris =
 995                        Attachment.extractAttachments(getActivity(), data, type);
 996                mediaPreviewAdapter.addMediaPreviews(fileUris);
 997                toggleInputMethod();
 998                break;
 999            case ATTACHMENT_CHOICE_LOCATION:
1000                final double latitude = data.getDoubleExtra("latitude", 0);
1001                final double longitude = data.getDoubleExtra("longitude", 0);
1002                final int accuracy = data.getIntExtra("accuracy", 0);
1003                final Uri geo;
1004                if (accuracy > 0) {
1005                    geo = Uri.parse(String.format("geo:%s,%s;u=%s", latitude, longitude, accuracy));
1006                } else {
1007                    geo = Uri.parse(String.format("geo:%s,%s", latitude, longitude));
1008                }
1009                mediaPreviewAdapter.addMediaPreviews(
1010                        Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
1011                toggleInputMethod();
1012                break;
1013            case REQUEST_INVITE_TO_CONVERSATION:
1014                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
1015                if (invite != null) {
1016                    if (invite.execute(activity)) {
1017                        activity.mToast =
1018                                Toast.makeText(
1019                                        activity, R.string.creating_conference, Toast.LENGTH_LONG);
1020                        activity.mToast.show();
1021                    }
1022                }
1023                break;
1024        }
1025    }
1026
1027    private void commitAttachments() {
1028        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
1029        if (anyNeedsExternalStoragePermission(attachments)
1030                && !hasPermissions(
1031                        REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1032            return;
1033        }
1034        if (trustKeysIfNeeded(conversation, REQUEST_TRUST_KEYS_ATTACHMENTS)) {
1035            return;
1036        }
1037        final PresenceSelector.OnPresenceSelected callback =
1038                () -> {
1039                    for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
1040                        final Attachment attachment = i.next();
1041                        if (attachment.getType() == Attachment.Type.LOCATION) {
1042                            attachLocationToConversation(conversation, attachment.getUri());
1043                        } else if (attachment.getType() == Attachment.Type.IMAGE) {
1044                            Log.d(
1045                                    Config.LOGTAG,
1046                                    "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
1047                            attachImageToConversation(
1048                                    conversation, attachment.getUri(), attachment.getMime());
1049                        } else {
1050                            Log.d(
1051                                    Config.LOGTAG,
1052                                    "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
1053                            attachFileToConversation(
1054                                    conversation, attachment.getUri(), attachment.getMime());
1055                        }
1056                    }
1057                    mediaPreviewAdapter.notifyDataSetChanged();
1058                    toggleInputMethod();
1059                };
1060        if (conversation == null
1061                || conversation.getMode() == Conversation.MODE_MULTI
1062                || Attachment.canBeSendInband(attachments)
1063                || (conversation.getAccount().httpUploadAvailable()
1064                        && FileBackend.allFilesUnderSize(
1065                                getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
1066            callback.onPresenceSelected();
1067        } else {
1068            activity.selectPresence(conversation, callback);
1069        }
1070    }
1071
1072    private static boolean anyNeedsExternalStoragePermission(
1073            final Collection<Attachment> attachments) {
1074        for (final Attachment attachment : attachments) {
1075            if (attachment.getType() != Attachment.Type.LOCATION) {
1076                return true;
1077            }
1078        }
1079        return false;
1080    }
1081
1082    public void toggleInputMethod() {
1083        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
1084        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
1085        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
1086        updateSendButton();
1087    }
1088
1089    private void handleNegativeActivityResult(int requestCode) {
1090        switch (requestCode) {
1091            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1092                if (pendingTakePhotoUri.clear()) {
1093                    Log.d(
1094                            Config.LOGTAG,
1095                            "cleared pending photo uri after negative activity result");
1096                }
1097                break;
1098        }
1099    }
1100
1101    @Override
1102    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
1103        super.onActivityResult(requestCode, resultCode, data);
1104        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
1105        if (activity != null && activity.xmppConnectionService != null) {
1106            handleActivityResult(activityResult);
1107        } else {
1108            this.postponedActivityResult.push(activityResult);
1109        }
1110    }
1111
1112    public void unblockConversation(final Blockable conversation) {
1113        activity.xmppConnectionService.sendUnblockRequest(conversation);
1114    }
1115
1116    @Override
1117    public void onAttach(Activity activity) {
1118        super.onAttach(activity);
1119        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
1120        if (activity instanceof ConversationsActivity) {
1121            this.activity = (ConversationsActivity) activity;
1122        } else {
1123            throw new IllegalStateException(
1124                    "Trying to attach fragment to activity that is not the ConversationsActivity");
1125        }
1126    }
1127
1128    @Override
1129    public void onDetach() {
1130        super.onDetach();
1131        this.activity = null; // TODO maybe not a good idea since some callbacks really need it
1132    }
1133
1134    @Override
1135    public void onCreate(Bundle savedInstanceState) {
1136        super.onCreate(savedInstanceState);
1137        setHasOptionsMenu(true);
1138    }
1139
1140    @Override
1141    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
1142        menuInflater.inflate(R.menu.fragment_conversation, menu);
1143        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
1144        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
1145        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
1146        final MenuItem menuMute = menu.findItem(R.id.action_mute);
1147        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
1148        final MenuItem menuCall = menu.findItem(R.id.action_call);
1149        final MenuItem menuOngoingCall = menu.findItem(R.id.action_ongoing_call);
1150        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
1151        final MenuItem menuTogglePinned = menu.findItem(R.id.action_toggle_pinned);
1152
1153        if (conversation != null) {
1154            if (conversation.getMode() == Conversation.MODE_MULTI) {
1155                menuContactDetails.setVisible(false);
1156                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
1157                menuMucDetails.setTitle(
1158                        conversation.getMucOptions().isPrivateAndNonAnonymous()
1159                                ? R.string.action_muc_details
1160                                : R.string.channel_details);
1161                menuCall.setVisible(false);
1162                menuOngoingCall.setVisible(false);
1163            } else {
1164                final XmppConnectionService service =
1165                        activity == null ? null : activity.xmppConnectionService;
1166                final Optional<OngoingRtpSession> ongoingRtpSession =
1167                        service == null
1168                                ? Optional.absent()
1169                                : service.getJingleConnectionManager()
1170                                        .getOngoingRtpConnection(conversation.getContact());
1171                if (ongoingRtpSession.isPresent()) {
1172                    menuOngoingCall.setVisible(true);
1173                    menuCall.setVisible(false);
1174                } else {
1175                    menuOngoingCall.setVisible(false);
1176                    final RtpCapability.Capability rtpCapability =
1177                            RtpCapability.check(conversation.getContact());
1178                    final boolean cameraAvailable =
1179                            activity != null && activity.isCameraFeatureAvailable();
1180                    menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
1181                    menuVideoCall.setVisible(
1182                            rtpCapability == RtpCapability.Capability.VIDEO && cameraAvailable);
1183                }
1184                menuContactDetails.setVisible(!this.conversation.withSelf());
1185                menuMucDetails.setVisible(false);
1186                menuInviteContact.setVisible(
1187                        service != null
1188                                && service.findConferenceServer(conversation.getAccount()) != null);
1189            }
1190            if (conversation.isMuted()) {
1191                menuMute.setVisible(false);
1192            } else {
1193                menuUnmute.setVisible(false);
1194            }
1195            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
1196            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
1197            if (conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false)) {
1198                menuTogglePinned.setTitle(R.string.remove_from_favorites);
1199            } else {
1200                menuTogglePinned.setTitle(R.string.add_to_favorites);
1201            }
1202        }
1203        super.onCreateOptionsMenu(menu, menuInflater);
1204    }
1205
1206    @Override
1207    public View onCreateView(
1208            final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1209        this.binding =
1210                DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
1211        binding.getRoot().setOnClickListener(null); // TODO why the fuck did we do this?
1212
1213        binding.textinput.addTextChangedListener(
1214                new StylingHelper.MessageEditorStyler(binding.textinput));
1215
1216        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1217        binding.textinput.setRichContentListener(new String[] {"image/*"}, mEditorContentListener);
1218
1219        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1220
1221        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1222        binding.messagesView.setOnScrollListener(mOnScrollListener);
1223        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1224        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1225        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1226        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1227        messageListAdapter.setOnContactPictureClicked(this);
1228        messageListAdapter.setOnContactPictureLongClicked(this);
1229        binding.messagesView.setAdapter(messageListAdapter);
1230
1231        registerForContextMenu(binding.messagesView);
1232
1233        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1234            this.binding.textinput.setCustomInsertionActionModeCallback(
1235                    new EditMessageActionModeCallback(this.binding.textinput));
1236        }
1237
1238        return binding.getRoot();
1239    }
1240
1241    @Override
1242    public void onDestroyView() {
1243        super.onDestroyView();
1244        Log.d(Config.LOGTAG, "ConversationFragment.onDestroyView()");
1245        messageListAdapter.setOnContactPictureClicked(null);
1246        messageListAdapter.setOnContactPictureLongClicked(null);
1247    }
1248
1249    private void quoteText(String text) {
1250        if (binding.textinput.isEnabled()) {
1251            binding.textinput.insertAsQuote(text);
1252            binding.textinput.requestFocus();
1253            InputMethodManager inputMethodManager =
1254                    (InputMethodManager)
1255                            getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1256            if (inputMethodManager != null) {
1257                inputMethodManager.showSoftInput(
1258                        binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1259            }
1260        }
1261    }
1262
1263    private void quoteMessage(Message message) {
1264        quoteText(MessageUtils.prepareQuote(message));
1265    }
1266
1267    @Override
1268    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1269        // This should cancel any remaining click events that would otherwise trigger links
1270        v.dispatchTouchEvent(MotionEvent.obtain(0, 0, MotionEvent.ACTION_CANCEL, 0f, 0f, 0));
1271        synchronized (this.messageList) {
1272            super.onCreateContextMenu(menu, v, menuInfo);
1273            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1274            this.selectedMessage = this.messageList.get(acmi.position);
1275            populateContextMenu(menu);
1276        }
1277    }
1278
1279    private void populateContextMenu(ContextMenu menu) {
1280        final Message m = this.selectedMessage;
1281        final Transferable t = m.getTransferable();
1282        Message relevantForCorrection = m;
1283        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1284            relevantForCorrection = relevantForCorrection.next();
1285        }
1286        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1287
1288            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE
1289                    || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1290                return;
1291            }
1292
1293            if (m.getStatus() == Message.STATUS_RECEIVED
1294                    && t != null
1295                    && (t.getStatus() == Transferable.STATUS_CANCELLED
1296                            || t.getStatus() == Transferable.STATUS_FAILED)) {
1297                return;
1298            }
1299
1300            final boolean deleted = m.isDeleted();
1301            final boolean encrypted =
1302                    m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1303                            || m.getEncryption() == Message.ENCRYPTION_PGP;
1304            final boolean receiving =
1305                    m.getStatus() == Message.STATUS_RECEIVED
1306                            && (t instanceof JingleFileTransferConnection
1307                                    || t instanceof HttpDownloadConnection);
1308            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1309            menu.setHeaderTitle(R.string.message_options);
1310            MenuItem openWith = menu.findItem(R.id.open_with);
1311            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1312            MenuItem copyLink = menu.findItem(R.id.copy_link);
1313            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1314            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1315            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1316            MenuItem shareWith = menu.findItem(R.id.share_with);
1317            MenuItem sendAgain = menu.findItem(R.id.send_again);
1318            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1319            MenuItem downloadFile = menu.findItem(R.id.download_file);
1320            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1321            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1322            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1323            final boolean unInitiatedButKnownSize = MessageUtils.unInitiatedButKnownSize(m);
1324            final boolean showError =
1325                    m.getStatus() == Message.STATUS_SEND_FAILED
1326                            && m.getErrorMessage() != null
1327                            && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1328            if (!m.isFileOrImage()
1329                    && !encrypted
1330                    && !m.isGeoUri()
1331                    && !m.treatAsDownloadable()
1332                    && !unInitiatedButKnownSize
1333                    && t == null) {
1334                copyMessage.setVisible(true);
1335                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1336                final String scheme = ShareUtil.getLinkScheme(m.getMergedBody());
1337                if ("xmpp".equals(scheme)) {
1338                    copyLink.setTitle(R.string.copy_jabber_id);
1339                    copyLink.setVisible(true);
1340                } else if (scheme != null) {
1341                    copyLink.setVisible(true);
1342                }
1343            }
1344            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1345                retryDecryption.setVisible(true);
1346            }
1347            if (!showError
1348                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1349                    && !m.isGeoUri()
1350                    && relevantForCorrection.isLastCorrectableMessage()
1351                    && m.getConversation() instanceof Conversation) {
1352                correctMessage.setVisible(true);
1353            }
1354            if ((m.isFileOrImage() && !deleted && !receiving)
1355                    || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())
1356                            && !unInitiatedButKnownSize
1357                            && t == null) {
1358                shareWith.setVisible(true);
1359            }
1360            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1361                sendAgain.setVisible(true);
1362            }
1363            if (m.hasFileOnRemoteHost()
1364                    || m.isGeoUri()
1365                    || m.treatAsDownloadable()
1366                    || unInitiatedButKnownSize
1367                    || t instanceof HttpDownloadConnection) {
1368                copyUrl.setVisible(true);
1369            }
1370            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1371                downloadFile.setVisible(true);
1372                downloadFile.setTitle(
1373                        activity.getString(
1374                                R.string.download_x_file,
1375                                UIHelper.getFileDescriptionString(activity, m)));
1376            }
1377            final boolean waitingOfferedSending =
1378                    m.getStatus() == Message.STATUS_WAITING
1379                            || m.getStatus() == Message.STATUS_UNSEND
1380                            || m.getStatus() == Message.STATUS_OFFERED;
1381            final boolean cancelable =
1382                    (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1383            if (cancelable) {
1384                cancelTransmission.setVisible(true);
1385            }
1386            if (m.isFileOrImage() && !deleted && !cancelable) {
1387                final String path = m.getRelativeFilePath();
1388                if (path == null
1389                        || !path.startsWith("/")
1390                        || FileBackend.inConversationsDirectory(requireActivity(), path)) {
1391                    deleteFile.setVisible(true);
1392                    deleteFile.setTitle(
1393                            activity.getString(
1394                                    R.string.delete_x_file,
1395                                    UIHelper.getFileDescriptionString(activity, m)));
1396                }
1397            }
1398            if (showError) {
1399                showErrorMessage.setVisible(true);
1400            }
1401            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1402            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m))
1403                    || (mime != null && mime.startsWith("audio/"))) {
1404                openWith.setVisible(true);
1405            }
1406        }
1407    }
1408
1409    @Override
1410    public boolean onContextItemSelected(MenuItem item) {
1411        switch (item.getItemId()) {
1412            case R.id.share_with:
1413                ShareUtil.share(activity, selectedMessage);
1414                return true;
1415            case R.id.correct_message:
1416                correctMessage(selectedMessage);
1417                return true;
1418            case R.id.copy_message:
1419                ShareUtil.copyToClipboard(activity, selectedMessage);
1420                return true;
1421            case R.id.copy_link:
1422                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1423                return true;
1424            case R.id.quote_message:
1425                quoteMessage(selectedMessage);
1426                return true;
1427            case R.id.send_again:
1428                resendMessage(selectedMessage);
1429                return true;
1430            case R.id.copy_url:
1431                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1432                return true;
1433            case R.id.download_file:
1434                startDownloadable(selectedMessage);
1435                return true;
1436            case R.id.cancel_transmission:
1437                cancelTransmission(selectedMessage);
1438                return true;
1439            case R.id.retry_decryption:
1440                retryDecryption(selectedMessage);
1441                return true;
1442            case R.id.delete_file:
1443                deleteFile(selectedMessage);
1444                return true;
1445            case R.id.show_error_message:
1446                showErrorMessage(selectedMessage);
1447                return true;
1448            case R.id.open_with:
1449                openWith(selectedMessage);
1450                return true;
1451            default:
1452                return super.onContextItemSelected(item);
1453        }
1454    }
1455
1456    @Override
1457    public boolean onOptionsItemSelected(final MenuItem item) {
1458        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1459            return false;
1460        } else if (conversation == null) {
1461            return super.onOptionsItemSelected(item);
1462        }
1463        switch (item.getItemId()) {
1464            case R.id.encryption_choice_axolotl:
1465            case R.id.encryption_choice_pgp:
1466            case R.id.encryption_choice_none:
1467                handleEncryptionSelection(item);
1468                break;
1469            case R.id.attach_choose_picture:
1470            case R.id.attach_take_picture:
1471            case R.id.attach_record_video:
1472            case R.id.attach_choose_file:
1473            case R.id.attach_record_voice:
1474            case R.id.attach_location:
1475                handleAttachmentSelection(item);
1476                break;
1477            case R.id.action_search:
1478                startSearch();
1479                break;
1480            case R.id.action_archive:
1481                activity.xmppConnectionService.archiveConversation(conversation);
1482                break;
1483            case R.id.action_contact_details:
1484                activity.switchToContactDetails(conversation.getContact());
1485                break;
1486            case R.id.action_muc_details:
1487                ConferenceDetailsActivity.open(getActivity(), conversation);
1488                break;
1489            case R.id.action_invite:
1490                startActivityForResult(
1491                        ChooseContactActivity.create(activity, conversation),
1492                        REQUEST_INVITE_TO_CONVERSATION);
1493                break;
1494            case R.id.action_clear_history:
1495                clearHistoryDialog(conversation);
1496                break;
1497            case R.id.action_mute:
1498                muteConversationDialog(conversation);
1499                break;
1500            case R.id.action_unmute:
1501                unMuteConversation(conversation);
1502                break;
1503            case R.id.action_block:
1504            case R.id.action_unblock:
1505                final Activity activity = getActivity();
1506                if (activity instanceof XmppActivity) {
1507                    BlockContactDialog.show((XmppActivity) activity, conversation);
1508                }
1509                break;
1510            case R.id.action_audio_call:
1511                checkPermissionAndTriggerAudioCall();
1512                break;
1513            case R.id.action_video_call:
1514                checkPermissionAndTriggerVideoCall();
1515                break;
1516            case R.id.action_ongoing_call:
1517                returnToOngoingCall();
1518                break;
1519            case R.id.action_toggle_pinned:
1520                togglePinned();
1521                break;
1522            default:
1523                break;
1524        }
1525        return super.onOptionsItemSelected(item);
1526    }
1527
1528    private void startSearch() {
1529        final Intent intent = new Intent(getActivity(), SearchActivity.class);
1530        intent.putExtra(SearchActivity.EXTRA_CONVERSATION_UUID, conversation.getUuid());
1531        startActivity(intent);
1532    }
1533
1534    private void returnToOngoingCall() {
1535        final Optional<OngoingRtpSession> ongoingRtpSession =
1536                activity.xmppConnectionService
1537                        .getJingleConnectionManager()
1538                        .getOngoingRtpConnection(conversation.getContact());
1539        if (ongoingRtpSession.isPresent()) {
1540            final OngoingRtpSession id = ongoingRtpSession.get();
1541            final Intent intent = new Intent(getActivity(), RtpSessionActivity.class);
1542            intent.putExtra(
1543                    RtpSessionActivity.EXTRA_ACCOUNT,
1544                    id.getAccount().getJid().asBareJid().toEscapedString());
1545            intent.putExtra(RtpSessionActivity.EXTRA_WITH, id.getWith().toEscapedString());
1546            if (id instanceof AbstractJingleConnection.Id) {
1547                intent.setAction(Intent.ACTION_VIEW);
1548                intent.putExtra(RtpSessionActivity.EXTRA_SESSION_ID, id.getSessionId());
1549            } else if (id instanceof JingleConnectionManager.RtpSessionProposal) {
1550                if (((JingleConnectionManager.RtpSessionProposal) id).media.contains(Media.VIDEO)) {
1551                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1552                } else {
1553                    intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1554                }
1555            }
1556            startActivity(intent);
1557        }
1558    }
1559
1560    private void togglePinned() {
1561        final boolean pinned =
1562                conversation.getBooleanAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, false);
1563        conversation.setAttribute(Conversation.ATTRIBUTE_PINNED_ON_TOP, !pinned);
1564        activity.xmppConnectionService.updateConversation(conversation);
1565        activity.invalidateOptionsMenu();
1566    }
1567
1568    private void checkPermissionAndTriggerAudioCall() {
1569        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1570            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1571            return;
1572        }
1573        final List<String> permissions;
1574        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1575            permissions =
1576                    Arrays.asList(
1577                            Manifest.permission.RECORD_AUDIO,
1578                            Manifest.permission.BLUETOOTH_CONNECT);
1579        } else {
1580            permissions = Collections.singletonList(Manifest.permission.RECORD_AUDIO);
1581        }
1582        if (hasPermissions(REQUEST_START_AUDIO_CALL, permissions)) {
1583            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1584        }
1585    }
1586
1587    private void checkPermissionAndTriggerVideoCall() {
1588        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1589            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1590            return;
1591        }
1592        final List<String> permissions;
1593        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
1594            permissions =
1595                    Arrays.asList(
1596                            Manifest.permission.RECORD_AUDIO,
1597                            Manifest.permission.CAMERA,
1598                            Manifest.permission.BLUETOOTH_CONNECT);
1599        } else {
1600            permissions =
1601                    Arrays.asList(Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA);
1602        }
1603        if (hasPermissions(REQUEST_START_VIDEO_CALL, permissions)) {
1604            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1605        }
1606    }
1607
1608    private void triggerRtpSession(final String action) {
1609        if (activity.xmppConnectionService.getJingleConnectionManager().isBusy()) {
1610            Toast.makeText(getActivity(), R.string.only_one_call_at_a_time, Toast.LENGTH_LONG)
1611                    .show();
1612            return;
1613        }
1614        final Account account = conversation.getAccount();
1615        if (account.setOption(Account.OPTION_SOFT_DISABLED, false)) {
1616            activity.xmppConnectionService.updateAccount(account);
1617        }
1618        final Contact contact = conversation.getContact();
1619        if (RtpCapability.jmiSupport(contact)) {
1620            triggerRtpSession(contact.getAccount(), contact.getJid().asBareJid(), action);
1621        } else {
1622            final RtpCapability.Capability capability;
1623            if (action.equals(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL)) {
1624                capability = RtpCapability.Capability.VIDEO;
1625            } else {
1626                capability = RtpCapability.Capability.AUDIO;
1627            }
1628            PresenceSelector.selectFullJidForDirectRtpConnection(
1629                    activity,
1630                    contact,
1631                    capability,
1632                    fullJid -> {
1633                        triggerRtpSession(contact.getAccount(), fullJid, action);
1634                    });
1635        }
1636    }
1637
1638    private void triggerRtpSession(final Account account, final Jid with, final String action) {
1639        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1640        intent.setAction(action);
1641        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, account.getJid().toEscapedString());
1642        intent.putExtra(RtpSessionActivity.EXTRA_WITH, with.toEscapedString());
1643        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1644        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
1645        startActivity(intent);
1646    }
1647
1648    private void handleAttachmentSelection(MenuItem item) {
1649        switch (item.getItemId()) {
1650            case R.id.attach_choose_picture:
1651                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1652                break;
1653            case R.id.attach_take_picture:
1654                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1655                break;
1656            case R.id.attach_record_video:
1657                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1658                break;
1659            case R.id.attach_choose_file:
1660                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1661                break;
1662            case R.id.attach_record_voice:
1663                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1664                break;
1665            case R.id.attach_location:
1666                attachFile(ATTACHMENT_CHOICE_LOCATION);
1667                break;
1668        }
1669    }
1670
1671    private void handleEncryptionSelection(MenuItem item) {
1672        if (conversation == null) {
1673            return;
1674        }
1675        final boolean updated;
1676        switch (item.getItemId()) {
1677            case R.id.encryption_choice_none:
1678                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1679                item.setChecked(true);
1680                break;
1681            case R.id.encryption_choice_pgp:
1682                if (activity.hasPgp()) {
1683                    if (conversation.getAccount().getPgpSignature() != null) {
1684                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1685                        item.setChecked(true);
1686                    } else {
1687                        updated = false;
1688                        activity.announcePgp(
1689                                conversation.getAccount(),
1690                                conversation,
1691                                null,
1692                                activity.onOpenPGPKeyPublished);
1693                    }
1694                } else {
1695                    activity.showInstallPgpDialog();
1696                    updated = false;
1697                }
1698                break;
1699            case R.id.encryption_choice_axolotl:
1700                Log.d(
1701                        Config.LOGTAG,
1702                        AxolotlService.getLogprefix(conversation.getAccount())
1703                                + "Enabled axolotl for Contact "
1704                                + conversation.getContact().getJid());
1705                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1706                item.setChecked(true);
1707                break;
1708            default:
1709                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1710                break;
1711        }
1712        if (updated) {
1713            activity.xmppConnectionService.updateConversation(conversation);
1714        }
1715        updateChatMsgHint();
1716        getActivity().invalidateOptionsMenu();
1717        activity.refreshUi();
1718    }
1719
1720    public void attachFile(final int attachmentChoice) {
1721        attachFile(attachmentChoice, true);
1722    }
1723
1724    public void attachFile(final int attachmentChoice, final boolean updateRecentlyUsed) {
1725        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1726            if (!hasPermissions(
1727                    attachmentChoice,
1728                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1729                    Manifest.permission.RECORD_AUDIO)) {
1730                return;
1731            }
1732        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO
1733                || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1734            if (!hasPermissions(
1735                    attachmentChoice,
1736                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
1737                    Manifest.permission.CAMERA)) {
1738                return;
1739            }
1740        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1741            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1742                return;
1743            }
1744        }
1745        if (updateRecentlyUsed) {
1746            storeRecentlyUsedQuickAction(attachmentChoice);
1747        }
1748        final int encryption = conversation.getNextEncryption();
1749        final int mode = conversation.getMode();
1750        if (encryption == Message.ENCRYPTION_PGP) {
1751            if (activity.hasPgp()) {
1752                if (mode == Conversation.MODE_SINGLE
1753                        && conversation.getContact().getPgpKeyId() != 0) {
1754                    activity.xmppConnectionService
1755                            .getPgpEngine()
1756                            .hasKey(
1757                                    conversation.getContact(),
1758                                    new UiCallback<Contact>() {
1759
1760                                        @Override
1761                                        public void userInputRequired(
1762                                                PendingIntent pi, Contact contact) {
1763                                            startPendingIntent(pi, attachmentChoice);
1764                                        }
1765
1766                                        @Override
1767                                        public void success(Contact contact) {
1768                                            invokeAttachFileIntent(attachmentChoice);
1769                                        }
1770
1771                                        @Override
1772                                        public void error(int error, Contact contact) {
1773                                            activity.replaceToast(getString(error));
1774                                        }
1775                                    });
1776                } else if (mode == Conversation.MODE_MULTI
1777                        && conversation.getMucOptions().pgpKeysInUse()) {
1778                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1779                        Toast warning =
1780                                Toast.makeText(
1781                                        getActivity(),
1782                                        R.string.missing_public_keys,
1783                                        Toast.LENGTH_LONG);
1784                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1785                        warning.show();
1786                    }
1787                    invokeAttachFileIntent(attachmentChoice);
1788                } else {
1789                    showNoPGPKeyDialog(
1790                            false,
1791                            (dialog, which) -> {
1792                                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1793                                activity.xmppConnectionService.updateConversation(conversation);
1794                                invokeAttachFileIntent(attachmentChoice);
1795                            });
1796                }
1797            } else {
1798                activity.showInstallPgpDialog();
1799            }
1800        } else {
1801            invokeAttachFileIntent(attachmentChoice);
1802        }
1803    }
1804
1805    private void storeRecentlyUsedQuickAction(final int attachmentChoice) {
1806        try {
1807            activity.getPreferences()
1808                    .edit()
1809                    .putString(
1810                            RECENTLY_USED_QUICK_ACTION,
1811                            SendButtonAction.of(attachmentChoice).toString())
1812                    .apply();
1813        } catch (IllegalArgumentException e) {
1814            // just do not save
1815        }
1816    }
1817
1818    @Override
1819    public void onRequestPermissionsResult(
1820            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1821        final PermissionUtils.PermissionResult permissionResult =
1822                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
1823        if (grantResults.length > 0) {
1824            if (allGranted(permissionResult.grantResults)) {
1825                switch (requestCode) {
1826                    case REQUEST_START_DOWNLOAD:
1827                        if (this.mPendingDownloadableMessage != null) {
1828                            startDownloadable(this.mPendingDownloadableMessage);
1829                        }
1830                        break;
1831                    case REQUEST_ADD_EDITOR_CONTENT:
1832                        if (this.mPendingEditorContent != null) {
1833                            attachEditorContentToConversation(this.mPendingEditorContent);
1834                        }
1835                        break;
1836                    case REQUEST_COMMIT_ATTACHMENTS:
1837                        commitAttachments();
1838                        break;
1839                    case REQUEST_START_AUDIO_CALL:
1840                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1841                        break;
1842                    case REQUEST_START_VIDEO_CALL:
1843                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1844                        break;
1845                    default:
1846                        attachFile(requestCode);
1847                        break;
1848                }
1849            } else {
1850                @StringRes int res;
1851                String firstDenied =
1852                        getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
1853                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1854                    res = R.string.no_microphone_permission;
1855                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1856                    res = R.string.no_camera_permission;
1857                } else {
1858                    res = R.string.no_storage_permission;
1859                }
1860                Toast.makeText(
1861                                getActivity(),
1862                                getString(res, getString(R.string.app_name)),
1863                                Toast.LENGTH_SHORT)
1864                        .show();
1865            }
1866        }
1867        if (writeGranted(grantResults, permissions)) {
1868            if (activity != null && activity.xmppConnectionService != null) {
1869                activity.xmppConnectionService.getBitmapCache().evictAll();
1870                activity.xmppConnectionService.restartFileObserver();
1871            }
1872            refresh();
1873        }
1874        if (cameraGranted(grantResults, permissions) || audioGranted(grantResults, permissions)) {
1875            XmppConnectionService.toggleForegroundService(activity);
1876        }
1877    }
1878
1879    public void startDownloadable(Message message) {
1880        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1881            this.mPendingDownloadableMessage = message;
1882            return;
1883        }
1884        Transferable transferable = message.getTransferable();
1885        if (transferable != null) {
1886            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1887                createNewConnection(message);
1888                return;
1889            }
1890            if (!transferable.start()) {
1891                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1892                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1893                        .show();
1894            }
1895        } else if (message.treatAsDownloadable()
1896                || message.hasFileOnRemoteHost()
1897                || MessageUtils.unInitiatedButKnownSize(message)) {
1898            createNewConnection(message);
1899        } else {
1900            Log.d(
1901                    Config.LOGTAG,
1902                    message.getConversation().getAccount() + ": unable to start downloadable");
1903        }
1904    }
1905
1906    private void createNewConnection(final Message message) {
1907        if (!activity.xmppConnectionService.hasInternetConnection()) {
1908            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT)
1909                    .show();
1910            return;
1911        }
1912        activity.xmppConnectionService
1913                .getHttpConnectionManager()
1914                .createNewDownloadConnection(message, true);
1915    }
1916
1917    @SuppressLint("InflateParams")
1918    protected void clearHistoryDialog(final Conversation conversation) {
1919        final AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
1920        builder.setTitle(getString(R.string.clear_conversation_history));
1921        final View dialogView =
1922                requireActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1923        final CheckBox endConversationCheckBox =
1924                dialogView.findViewById(R.id.end_conversation_checkbox);
1925        builder.setView(dialogView);
1926        builder.setNegativeButton(getString(R.string.cancel), null);
1927        builder.setPositiveButton(
1928                getString(R.string.confirm),
1929                (dialog, which) -> {
1930                    this.activity.xmppConnectionService.clearConversationHistory(conversation);
1931                    if (endConversationCheckBox.isChecked()) {
1932                        this.activity.xmppConnectionService.archiveConversation(conversation);
1933                        this.activity.onConversationArchived(conversation);
1934                    } else {
1935                        activity.onConversationsListItemUpdated();
1936                        refresh();
1937                    }
1938                });
1939        builder.create().show();
1940    }
1941
1942    protected void muteConversationDialog(final Conversation conversation) {
1943        final AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
1944        builder.setTitle(R.string.disable_notifications);
1945        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1946        final CharSequence[] labels = new CharSequence[durations.length];
1947        for (int i = 0; i < durations.length; ++i) {
1948            if (durations[i] == -1) {
1949                labels[i] = getString(R.string.until_further_notice);
1950            } else {
1951                labels[i] = TimeFrameUtils.resolve(activity, 1000L * durations[i]);
1952            }
1953        }
1954        builder.setItems(
1955                labels,
1956                (dialog, which) -> {
1957                    final long till;
1958                    if (durations[which] == -1) {
1959                        till = Long.MAX_VALUE;
1960                    } else {
1961                        till = System.currentTimeMillis() + (durations[which] * 1000L);
1962                    }
1963                    conversation.setMutedTill(till);
1964                    activity.xmppConnectionService.updateConversation(conversation);
1965                    activity.onConversationsListItemUpdated();
1966                    refresh();
1967                    requireActivity().invalidateOptionsMenu();
1968                });
1969        builder.create().show();
1970    }
1971
1972    private boolean hasPermissions(int requestCode, List<String> permissions) {
1973        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1974            final List<String> missingPermissions = new ArrayList<>();
1975            for (String permission : permissions) {
1976                if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU || Config.ONLY_INTERNAL_STORAGE) && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1977                    continue;
1978                }
1979                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1980                    missingPermissions.add(permission);
1981                }
1982            }
1983            if (missingPermissions.size() == 0) {
1984                return true;
1985            } else {
1986                requestPermissions(
1987                        missingPermissions.toArray(new String[0]),
1988                        requestCode);
1989                return false;
1990            }
1991        } else {
1992            return true;
1993        }
1994    }
1995
1996    private boolean hasPermissions(int requestCode, String... permissions) {
1997        return hasPermissions(requestCode, ImmutableList.copyOf(permissions));
1998    }
1999
2000    public void unMuteConversation(final Conversation conversation) {
2001        conversation.setMutedTill(0);
2002        this.activity.xmppConnectionService.updateConversation(conversation);
2003        this.activity.onConversationsListItemUpdated();
2004        refresh();
2005        requireActivity().invalidateOptionsMenu();
2006    }
2007
2008    protected void invokeAttachFileIntent(final int attachmentChoice) {
2009        Intent intent = new Intent();
2010        boolean chooser = false;
2011        switch (attachmentChoice) {
2012            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
2013                intent.setAction(Intent.ACTION_GET_CONTENT);
2014                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2015                intent.setType("image/*");
2016                chooser = true;
2017                break;
2018            case ATTACHMENT_CHOICE_RECORD_VIDEO:
2019                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
2020                break;
2021            case ATTACHMENT_CHOICE_TAKE_PHOTO:
2022                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
2023                pendingTakePhotoUri.push(uri);
2024                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
2025                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
2026                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
2027                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
2028                break;
2029            case ATTACHMENT_CHOICE_CHOOSE_FILE:
2030                chooser = true;
2031                intent.setType("*/*");
2032                intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
2033                intent.addCategory(Intent.CATEGORY_OPENABLE);
2034                intent.setAction(Intent.ACTION_GET_CONTENT);
2035                break;
2036            case ATTACHMENT_CHOICE_RECORD_VOICE:
2037                intent = new Intent(getActivity(), RecordingActivity.class);
2038                break;
2039            case ATTACHMENT_CHOICE_LOCATION:
2040                intent = GeoHelper.getFetchIntent(activity);
2041                break;
2042        }
2043        final Context context = getActivity();
2044        if (context == null) {
2045            return;
2046        }
2047        try {
2048            if (chooser) {
2049                startActivityForResult(
2050                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
2051                        attachmentChoice);
2052            } else {
2053                startActivityForResult(intent, attachmentChoice);
2054            }
2055        } catch (final ActivityNotFoundException e) {
2056            Toast.makeText(context, R.string.no_application_found, Toast.LENGTH_LONG).show();
2057        }
2058    }
2059
2060    @Override
2061    public void onResume() {
2062        super.onResume();
2063        binding.messagesView.post(this::fireReadEvent);
2064    }
2065
2066    private void fireReadEvent() {
2067        if (activity != null && this.conversation != null) {
2068            String uuid = getLastVisibleMessageUuid();
2069            if (uuid != null) {
2070                activity.onConversationRead(this.conversation, uuid);
2071            }
2072        }
2073    }
2074
2075    private String getLastVisibleMessageUuid() {
2076        if (binding == null) {
2077            return null;
2078        }
2079        synchronized (this.messageList) {
2080            int pos = binding.messagesView.getLastVisiblePosition();
2081            if (pos >= 0) {
2082                Message message = null;
2083                for (int i = pos; i >= 0; --i) {
2084                    try {
2085                        message = (Message) binding.messagesView.getItemAtPosition(i);
2086                    } catch (IndexOutOfBoundsException e) {
2087                        // should not happen if we synchronize properly. however if that fails we
2088                        // just gonna try item -1
2089                        continue;
2090                    }
2091                    if (message.getType() != Message.TYPE_STATUS) {
2092                        break;
2093                    }
2094                }
2095                if (message != null) {
2096                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
2097                        message = message.next();
2098                    }
2099                    return message.getUuid();
2100                }
2101            }
2102        }
2103        return null;
2104    }
2105
2106    private void openWith(final Message message) {
2107        if (message.isGeoUri()) {
2108            GeoHelper.view(getActivity(), message);
2109        } else {
2110            final DownloadableFile file =
2111                    activity.xmppConnectionService.getFileBackend().getFile(message);
2112            ViewUtil.view(activity, file);
2113        }
2114    }
2115
2116    private void showErrorMessage(final Message message) {
2117        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2118        builder.setTitle(R.string.error_message);
2119        final String errorMessage = message.getErrorMessage();
2120        final String[] errorMessageParts =
2121                errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
2122        final String displayError;
2123        if (errorMessageParts.length == 2) {
2124            displayError = errorMessageParts[1];
2125        } else {
2126            displayError = errorMessage;
2127        }
2128        builder.setMessage(displayError);
2129        builder.setNegativeButton(
2130                R.string.copy_to_clipboard,
2131                (dialog, which) -> {
2132                    activity.copyTextToClipboard(displayError, R.string.error_message);
2133                    Toast.makeText(
2134                                    activity,
2135                                    R.string.error_message_copied_to_clipboard,
2136                                    Toast.LENGTH_SHORT)
2137                            .show();
2138                });
2139        builder.setPositiveButton(R.string.confirm, null);
2140        builder.create().show();
2141    }
2142
2143    private void deleteFile(final Message message) {
2144        AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
2145        builder.setNegativeButton(R.string.cancel, null);
2146        builder.setTitle(R.string.delete_file_dialog);
2147        builder.setMessage(R.string.delete_file_dialog_msg);
2148        builder.setPositiveButton(
2149                R.string.confirm,
2150                (dialog, which) -> {
2151                    if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
2152                        message.setDeleted(true);
2153                        activity.xmppConnectionService.evictPreview(message.getUuid());
2154                        activity.xmppConnectionService.updateMessage(message, false);
2155                        activity.onConversationsListItemUpdated();
2156                        refresh();
2157                    }
2158                });
2159        builder.create().show();
2160    }
2161
2162    private void resendMessage(final Message message) {
2163        if (message.isFileOrImage()) {
2164            if (!(message.getConversation() instanceof Conversation)) {
2165                return;
2166            }
2167            final Conversation conversation = (Conversation) message.getConversation();
2168            final DownloadableFile file =
2169                    activity.xmppConnectionService.getFileBackend().getFile(message);
2170            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
2171                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
2172                if (!message.hasFileOnRemoteHost()
2173                        && xmppConnection != null
2174                        && conversation.getMode() == Conversational.MODE_SINGLE
2175                        && !xmppConnection
2176                                .getFeatures()
2177                                .httpUpload(message.getFileParams().getSize())) {
2178                    activity.selectPresence(
2179                            conversation,
2180                            () -> {
2181                                message.setCounterpart(conversation.getNextCounterpart());
2182                                activity.xmppConnectionService.resendFailedMessages(message);
2183                                new Handler()
2184                                        .post(
2185                                                () -> {
2186                                                    int size = messageList.size();
2187                                                    this.binding.messagesView.setSelection(
2188                                                            size - 1);
2189                                                });
2190                            });
2191                    return;
2192                }
2193            } else if (!Compatibility.hasStoragePermission(getActivity())) {
2194                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
2195                return;
2196            } else {
2197                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
2198                message.setDeleted(true);
2199                activity.xmppConnectionService.updateMessage(message, false);
2200                activity.onConversationsListItemUpdated();
2201                refresh();
2202                return;
2203            }
2204        }
2205        activity.xmppConnectionService.resendFailedMessages(message);
2206        new Handler()
2207                .post(
2208                        () -> {
2209                            int size = messageList.size();
2210                            this.binding.messagesView.setSelection(size - 1);
2211                        });
2212    }
2213
2214    private void cancelTransmission(Message message) {
2215        Transferable transferable = message.getTransferable();
2216        if (transferable != null) {
2217            transferable.cancel();
2218        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
2219            activity.xmppConnectionService.markMessage(
2220                    message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
2221        }
2222    }
2223
2224    private void retryDecryption(Message message) {
2225        message.setEncryption(Message.ENCRYPTION_PGP);
2226        activity.onConversationsListItemUpdated();
2227        refresh();
2228        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
2229    }
2230
2231    public void privateMessageWith(final Jid counterpart) {
2232        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2233            activity.xmppConnectionService.sendChatState(conversation);
2234        }
2235        this.binding.textinput.setText("");
2236        this.conversation.setNextCounterpart(counterpart);
2237        updateChatMsgHint();
2238        updateSendButton();
2239        updateEditablity();
2240    }
2241
2242    private void correctMessage(Message message) {
2243        while (message.mergeable(message.next())) {
2244            message = message.next();
2245        }
2246        this.conversation.setCorrectingMessage(message);
2247        final Editable editable = binding.textinput.getText();
2248        this.conversation.setDraftMessage(editable.toString());
2249        this.binding.textinput.setText("");
2250        this.binding.textinput.append(message.getBody());
2251    }
2252
2253    private void highlightInConference(String nick) {
2254        final Editable editable = this.binding.textinput.getText();
2255        String oldString = editable.toString().trim();
2256        final int pos = this.binding.textinput.getSelectionStart();
2257        if (oldString.isEmpty() || pos == 0) {
2258            editable.insert(0, nick + ": ");
2259        } else {
2260            final char before = editable.charAt(pos - 1);
2261            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
2262            if (before == '\n') {
2263                editable.insert(pos, nick + ": ");
2264            } else {
2265                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
2266                    if (NickValidityChecker.check(
2267                            conversation,
2268                            Arrays.asList(
2269                                    editable.subSequence(0, pos - 2).toString().split(", ")))) {
2270                        editable.insert(pos - 2, ", " + nick);
2271                        return;
2272                    }
2273                }
2274                editable.insert(
2275                        pos,
2276                        (Character.isWhitespace(before) ? "" : " ")
2277                                + nick
2278                                + (Character.isWhitespace(after) ? "" : " "));
2279                if (Character.isWhitespace(after)) {
2280                    this.binding.textinput.setSelection(
2281                            this.binding.textinput.getSelectionStart() + 1);
2282                }
2283            }
2284        }
2285    }
2286
2287    @Override
2288    public void startActivityForResult(Intent intent, int requestCode) {
2289        final Activity activity = getActivity();
2290        if (activity instanceof ConversationsActivity) {
2291            ((ConversationsActivity) activity).clearPendingViewIntent();
2292        }
2293        super.startActivityForResult(intent, requestCode);
2294    }
2295
2296    @Override
2297    public void onSaveInstanceState(@NotNull Bundle outState) {
2298        super.onSaveInstanceState(outState);
2299        if (conversation != null) {
2300            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
2301            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
2302            final Uri uri = pendingTakePhotoUri.peek();
2303            if (uri != null) {
2304                outState.putString(STATE_PHOTO_URI, uri.toString());
2305            }
2306            final ScrollState scrollState = getScrollPosition();
2307            if (scrollState != null) {
2308                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
2309            }
2310            final ArrayList<Attachment> attachments =
2311                    mediaPreviewAdapter == null
2312                            ? new ArrayList<>()
2313                            : mediaPreviewAdapter.getAttachments();
2314            if (attachments.size() > 0) {
2315                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
2316            }
2317        }
2318    }
2319
2320    @Override
2321    public void onActivityCreated(Bundle savedInstanceState) {
2322        super.onActivityCreated(savedInstanceState);
2323        if (savedInstanceState == null) {
2324            return;
2325        }
2326        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
2327        ArrayList<Attachment> attachments =
2328                savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
2329        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
2330        if (uuid != null) {
2331            QuickLoader.set(uuid);
2332            this.pendingConversationsUuid.push(uuid);
2333            if (attachments != null && attachments.size() > 0) {
2334                this.pendingMediaPreviews.push(attachments);
2335            }
2336            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
2337            if (takePhotoUri != null) {
2338                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
2339            }
2340            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
2341        }
2342    }
2343
2344    @Override
2345    public void onStart() {
2346        super.onStart();
2347        if (this.reInitRequiredOnStart && this.conversation != null) {
2348            final Bundle extras = pendingExtras.pop();
2349            reInit(this.conversation, extras != null);
2350            if (extras != null) {
2351                processExtras(extras);
2352            }
2353        } else if (conversation == null
2354                && activity != null
2355                && activity.xmppConnectionService != null) {
2356            final String uuid = pendingConversationsUuid.pop();
2357            Log.d(
2358                    Config.LOGTAG,
2359                    "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid="
2360                            + uuid);
2361            if (uuid != null) {
2362                findAndReInitByUuidOrArchive(uuid);
2363            }
2364        }
2365    }
2366
2367    @Override
2368    public void onStop() {
2369        super.onStop();
2370        final Activity activity = getActivity();
2371        messageListAdapter.unregisterListenerInAudioPlayer();
2372        if (activity == null || !activity.isChangingConfigurations()) {
2373            hideSoftKeyboard(activity);
2374            messageListAdapter.stopAudioPlayer();
2375        }
2376        if (this.conversation != null) {
2377            final String msg = this.binding.textinput.getText().toString();
2378            storeNextMessage(msg);
2379            updateChatState(this.conversation, msg);
2380            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
2381        }
2382        this.reInitRequiredOnStart = true;
2383    }
2384
2385    private void updateChatState(final Conversation conversation, final String msg) {
2386        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
2387        Account.State status = conversation.getAccount().getStatus();
2388        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
2389            activity.xmppConnectionService.sendChatState(conversation);
2390        }
2391    }
2392
2393    private void saveMessageDraftStopAudioPlayer() {
2394        final Conversation previousConversation = this.conversation;
2395        if (this.activity == null || this.binding == null || previousConversation == null) {
2396            return;
2397        }
2398        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
2399        final String msg = this.binding.textinput.getText().toString();
2400        storeNextMessage(msg);
2401        updateChatState(this.conversation, msg);
2402        messageListAdapter.stopAudioPlayer();
2403        mediaPreviewAdapter.clearPreviews();
2404        toggleInputMethod();
2405    }
2406
2407    public void reInit(final Conversation conversation, final Bundle extras) {
2408        QuickLoader.set(conversation.getUuid());
2409        final boolean changedConversation = this.conversation != conversation;
2410        if (changedConversation) {
2411            this.saveMessageDraftStopAudioPlayer();
2412        }
2413        this.clearPending();
2414        if (this.reInit(conversation, extras != null)) {
2415            if (extras != null) {
2416                processExtras(extras);
2417            }
2418            this.reInitRequiredOnStart = false;
2419        } else {
2420            this.reInitRequiredOnStart = true;
2421            pendingExtras.push(extras);
2422        }
2423        resetUnreadMessagesCount();
2424    }
2425
2426    private void reInit(Conversation conversation) {
2427        reInit(conversation, false);
2428    }
2429
2430    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
2431        if (conversation == null) {
2432            return false;
2433        }
2434        this.conversation = conversation;
2435        // once we set the conversation all is good and it will automatically do the right thing in
2436        // onStart()
2437        if (this.activity == null || this.binding == null) {
2438            return false;
2439        }
2440
2441        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2442            activity.onConversationArchived(this.conversation);
2443            return false;
2444        }
2445
2446        stopScrolling();
2447        Log.d(Config.LOGTAG, "reInit(hasExtras=" + hasExtras + ")");
2448
2449        if (this.conversation.isRead() && hasExtras) {
2450            Log.d(Config.LOGTAG, "trimming conversation");
2451            this.conversation.trim();
2452        }
2453
2454        setupIme();
2455
2456        final boolean scrolledToBottomAndNoPending =
2457                this.scrolledToBottom() && pendingScrollState.peek() == null;
2458
2459        this.binding.textSendButton.setContentDescription(
2460                activity.getString(R.string.send_message_to_x, conversation.getName()));
2461        this.binding.textinput.setKeyboardListener(null);
2462        final boolean participating =
2463                conversation.getMode() == Conversational.MODE_SINGLE
2464                        || conversation.getMucOptions().participating();
2465        if (participating) {
2466            this.binding.textinput.setText(this.conversation.getNextMessage());
2467            this.binding.textinput.setSelection(this.binding.textinput.length());
2468        } else {
2469            this.binding.textinput.setText(MessageUtils.EMPTY_STRING);
2470        }
2471        this.binding.textinput.setKeyboardListener(this);
2472        messageListAdapter.updatePreferences();
2473        refresh(false);
2474        activity.invalidateOptionsMenu();
2475        this.conversation.messagesLoaded.set(true);
2476        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + scrolledToBottomAndNoPending);
2477
2478        if (hasExtras || scrolledToBottomAndNoPending) {
2479            resetUnreadMessagesCount();
2480            synchronized (this.messageList) {
2481                Log.d(Config.LOGTAG, "jump to first unread message");
2482                final Message first = conversation.getFirstUnreadMessage();
2483                final int bottom = Math.max(0, this.messageList.size() - 1);
2484                final int pos;
2485                final boolean jumpToBottom;
2486                if (first == null) {
2487                    pos = bottom;
2488                    jumpToBottom = true;
2489                } else {
2490                    int i = getIndexOf(first.getUuid(), this.messageList);
2491                    pos = i < 0 ? bottom : i;
2492                    jumpToBottom = false;
2493                }
2494                setSelection(pos, jumpToBottom);
2495            }
2496        }
2497
2498        this.binding.messagesView.post(this::fireReadEvent);
2499        // TODO if we only do this when this fragment is running on main it won't *bing* in tablet
2500        // layout which might be unnecessary since we can *see* it
2501        activity.xmppConnectionService
2502                .getNotificationService()
2503                .setOpenConversation(this.conversation);
2504        return true;
2505    }
2506
2507    private void resetUnreadMessagesCount() {
2508        lastMessageUuid = null;
2509        hideUnreadMessagesCount();
2510    }
2511
2512    private void hideUnreadMessagesCount() {
2513        if (this.binding == null) {
2514            return;
2515        }
2516        this.binding.scrollToBottomButton.setEnabled(false);
2517        this.binding.scrollToBottomButton.hide();
2518        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2519    }
2520
2521    private void setSelection(int pos, boolean jumpToBottom) {
2522        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2523        this.binding.messagesView.post(
2524                () -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2525        this.binding.messagesView.post(this::fireReadEvent);
2526    }
2527
2528    private boolean scrolledToBottom() {
2529        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2530    }
2531
2532    private void processExtras(final Bundle extras) {
2533        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2534        final String text = extras.getString(Intent.EXTRA_TEXT);
2535        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2536        final String postInitAction =
2537                extras.getString(ConversationsActivity.EXTRA_POST_INIT_ACTION);
2538        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2539        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2540        final boolean doNotAppend =
2541                extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2542        final String type = extras.getString(ConversationsActivity.EXTRA_TYPE);
2543        final List<Uri> uris = extractUris(extras);
2544        if (uris != null && uris.size() > 0) {
2545            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2546                mediaPreviewAdapter.addMediaPreviews(
2547                        Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2548            } else {
2549                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2550                mediaPreviewAdapter.addMediaPreviews(
2551                        Attachment.of(getActivity(), cleanedUris, type));
2552            }
2553            toggleInputMethod();
2554            return;
2555        }
2556        if (nick != null) {
2557            if (pm) {
2558                Jid jid = conversation.getJid();
2559                try {
2560                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2561                    privateMessageWith(next);
2562                } catch (final IllegalArgumentException ignored) {
2563                    // do nothing
2564                }
2565            } else {
2566                final MucOptions mucOptions = conversation.getMucOptions();
2567                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2568                    highlightInConference(nick);
2569                }
2570            }
2571        } else {
2572            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2573                mediaPreviewAdapter.addMediaPreviews(
2574                        Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2575                toggleInputMethod();
2576                return;
2577            } else if (text != null && asQuote) {
2578                quoteText(text);
2579            } else {
2580                appendText(text, doNotAppend);
2581            }
2582        }
2583        if (ConversationsActivity.POST_ACTION_RECORD_VOICE.equals(postInitAction)) {
2584            attachFile(ATTACHMENT_CHOICE_RECORD_VOICE, false);
2585            return;
2586        }
2587        final Message message =
2588                downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2589        if (message != null) {
2590            startDownloadable(message);
2591        }
2592    }
2593
2594    private List<Uri> extractUris(final Bundle extras) {
2595        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2596        if (uris != null) {
2597            return uris;
2598        }
2599        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2600        if (uri != null) {
2601            return Collections.singletonList(uri);
2602        } else {
2603            return null;
2604        }
2605    }
2606
2607    private List<Uri> cleanUris(final List<Uri> uris) {
2608        final Iterator<Uri> iterator = uris.iterator();
2609        while (iterator.hasNext()) {
2610            final Uri uri = iterator.next();
2611            if (FileBackend.weOwnFile(uri)) {
2612                iterator.remove();
2613                Toast.makeText(
2614                                getActivity(),
2615                                R.string.security_violation_not_attaching_file,
2616                                Toast.LENGTH_SHORT)
2617                        .show();
2618            }
2619        }
2620        return uris;
2621    }
2622
2623    private boolean showBlockSubmenu(View view) {
2624        final Jid jid = conversation.getJid();
2625        final boolean showReject =
2626                !conversation.isWithStranger()
2627                        && conversation
2628                                .getContact()
2629                                .getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2630        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2631        popupMenu.inflate(R.menu.block);
2632        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2633        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2634        popupMenu.setOnMenuItemClickListener(
2635                menuItem -> {
2636                    Blockable blockable;
2637                    switch (menuItem.getItemId()) {
2638                        case R.id.reject:
2639                            activity.xmppConnectionService.stopPresenceUpdatesTo(
2640                                    conversation.getContact());
2641                            updateSnackBar(conversation);
2642                            return true;
2643                        case R.id.block_domain:
2644                            blockable =
2645                                    conversation
2646                                            .getAccount()
2647                                            .getRoster()
2648                                            .getContact(jid.getDomain());
2649                            break;
2650                        default:
2651                            blockable = conversation;
2652                    }
2653                    BlockContactDialog.show(activity, blockable);
2654                    return true;
2655                });
2656        popupMenu.show();
2657        return true;
2658    }
2659
2660    private void updateSnackBar(final Conversation conversation) {
2661        final Account account = conversation.getAccount();
2662        final XmppConnection connection = account.getXmppConnection();
2663        final int mode = conversation.getMode();
2664        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2665        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2666            return;
2667        }
2668        if (account.getStatus() == Account.State.DISABLED) {
2669            showSnackbar(
2670                    R.string.this_account_is_disabled,
2671                    R.string.enable,
2672                    this.mEnableAccountListener);
2673        } else if (account.getStatus() == Account.State.LOGGED_OUT) {
2674            showSnackbar(R.string.this_account_is_logged_out,R.string.log_in,this.mEnableAccountListener);
2675        } else if (conversation.isBlocked()) {
2676            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2677        } else if (contact != null
2678                && !contact.showInRoster()
2679                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2680            showSnackbar(
2681                    R.string.contact_added_you,
2682                    R.string.add_back,
2683                    this.mAddBackClickListener,
2684                    this.mLongPressBlockListener);
2685        } else if (contact != null
2686                && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2687            showSnackbar(
2688                    R.string.contact_asks_for_presence_subscription,
2689                    R.string.allow,
2690                    this.mAllowPresenceSubscription,
2691                    this.mLongPressBlockListener);
2692        } else if (mode == Conversation.MODE_MULTI
2693                && !conversation.getMucOptions().online()
2694                && account.getStatus() == Account.State.ONLINE) {
2695            switch (conversation.getMucOptions().getError()) {
2696                case NICK_IN_USE:
2697                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2698                    break;
2699                case NO_RESPONSE:
2700                    showSnackbar(R.string.joining_conference, 0, null);
2701                    break;
2702                case SERVER_NOT_FOUND:
2703                    if (conversation.receivedMessagesCount() > 0) {
2704                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2705                    } else {
2706                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2707                    }
2708                    break;
2709                case REMOTE_SERVER_TIMEOUT:
2710                    if (conversation.receivedMessagesCount() > 0) {
2711                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2712                    } else {
2713                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2714                    }
2715                    break;
2716                case PASSWORD_REQUIRED:
2717                    showSnackbar(
2718                            R.string.conference_requires_password,
2719                            R.string.enter_password,
2720                            enterPassword);
2721                    break;
2722                case BANNED:
2723                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2724                    break;
2725                case MEMBERS_ONLY:
2726                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2727                    break;
2728                case RESOURCE_CONSTRAINT:
2729                    showSnackbar(
2730                            R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2731                    break;
2732                case KICKED:
2733                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2734                    break;
2735                case TECHNICAL_PROBLEMS:
2736                    showSnackbar(R.string.conference_technical_problems, R.string.try_again, joinMuc);
2737                    break;
2738                case UNKNOWN:
2739                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2740                    break;
2741                case INVALID_NICK:
2742                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2743                case SHUTDOWN:
2744                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2745                    break;
2746                case DESTROYED:
2747                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2748                    break;
2749                case NON_ANONYMOUS:
2750                    showSnackbar(
2751                            R.string.group_chat_will_make_your_jabber_id_public,
2752                            R.string.join,
2753                            acceptJoin);
2754                    break;
2755                default:
2756                    hideSnackbar();
2757                    break;
2758            }
2759        } else if (account.hasPendingPgpIntent(conversation)) {
2760            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2761        } else if (connection != null
2762                && connection.getFeatures().blocking()
2763                && conversation.countMessages() != 0
2764                && !conversation.isBlocked()
2765                && conversation.isWithStranger()) {
2766            showSnackbar(
2767                    R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2768        } else {
2769            hideSnackbar();
2770        }
2771    }
2772
2773    @Override
2774    public void refresh() {
2775        if (this.binding == null) {
2776            Log.d(
2777                    Config.LOGTAG,
2778                    "ConversationFragment.refresh() skipped updated because view binding was null");
2779            return;
2780        }
2781        if (this.conversation != null
2782                && this.activity != null
2783                && this.activity.xmppConnectionService != null) {
2784            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2785                activity.onConversationArchived(this.conversation);
2786                return;
2787            }
2788        }
2789        this.refresh(true);
2790    }
2791
2792    private void refresh(boolean notifyConversationRead) {
2793        synchronized (this.messageList) {
2794            if (this.conversation != null) {
2795                conversation.populateWithMessages(this.messageList);
2796                updateSnackBar(conversation);
2797                updateStatusMessages();
2798                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2799                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2800                    binding.unreadCountCustomView.setUnreadCount(
2801                            conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2802                }
2803                this.messageListAdapter.notifyDataSetChanged();
2804                updateChatMsgHint();
2805                if (notifyConversationRead && activity != null) {
2806                    binding.messagesView.post(this::fireReadEvent);
2807                }
2808                updateSendButton();
2809                updateEditablity();
2810            }
2811        }
2812    }
2813
2814    protected void messageSent() {
2815        mSendingPgpMessage.set(false);
2816        this.binding.textinput.setText("");
2817        if (conversation.setCorrectingMessage(null)) {
2818            this.binding.textinput.append(conversation.getDraftMessage());
2819            conversation.setDraftMessage(null);
2820        }
2821        storeNextMessage();
2822        updateChatMsgHint();
2823        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2824        final boolean prefScrollToBottom =
2825                p.getBoolean(
2826                        "scroll_to_bottom",
2827                        activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2828        if (prefScrollToBottom || scrolledToBottom()) {
2829            new Handler()
2830                    .post(
2831                            () -> {
2832                                int size = messageList.size();
2833                                this.binding.messagesView.setSelection(size - 1);
2834                            });
2835        }
2836    }
2837
2838    private boolean storeNextMessage() {
2839        return storeNextMessage(this.binding.textinput.getText().toString());
2840    }
2841
2842    private boolean storeNextMessage(String msg) {
2843        final boolean participating =
2844                conversation.getMode() == Conversational.MODE_SINGLE
2845                        || conversation.getMucOptions().participating();
2846        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED
2847                && participating
2848                && this.conversation.setNextMessage(msg)) {
2849            this.activity.xmppConnectionService.updateConversation(this.conversation);
2850            return true;
2851        }
2852        return false;
2853    }
2854
2855    public void doneSendingPgpMessage() {
2856        mSendingPgpMessage.set(false);
2857    }
2858
2859    public long getMaxHttpUploadSize(Conversation conversation) {
2860        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2861        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2862    }
2863
2864    private void updateEditablity() {
2865        boolean canWrite =
2866                this.conversation.getMode() == Conversation.MODE_SINGLE
2867                        || this.conversation.getMucOptions().participating()
2868                        || this.conversation.getNextCounterpart() != null;
2869        this.binding.textinput.setFocusable(canWrite);
2870        this.binding.textinput.setFocusableInTouchMode(canWrite);
2871        this.binding.textSendButton.setEnabled(canWrite);
2872        this.binding.textinput.setCursorVisible(canWrite);
2873        this.binding.textinput.setEnabled(canWrite);
2874    }
2875
2876    public void updateSendButton() {
2877        boolean hasAttachments =
2878                mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2879        final Conversation c = this.conversation;
2880        final Presence.Status status;
2881        final String text =
2882                this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2883        final SendButtonAction action;
2884        if (hasAttachments) {
2885            action = SendButtonAction.TEXT;
2886        } else {
2887            action = SendButtonTool.getAction(getActivity(), c, text);
2888        }
2889        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2890            if (activity != null
2891                    && activity.xmppConnectionService != null
2892                    && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2893                status = Presence.Status.OFFLINE;
2894            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2895                status = c.getContact().getShownStatus();
2896            } else {
2897                status =
2898                        c.getMucOptions().online()
2899                                ? Presence.Status.ONLINE
2900                                : Presence.Status.OFFLINE;
2901            }
2902        } else {
2903            status = Presence.Status.OFFLINE;
2904        }
2905        this.binding.textSendButton.setTag(action);
2906        final Activity activity = getActivity();
2907        if (activity != null) {
2908            this.binding.textSendButton.setImageResource(
2909                    SendButtonTool.getSendButtonImageResource(activity, action, status));
2910        }
2911    }
2912
2913    protected void updateStatusMessages() {
2914        DateSeparator.addAll(this.messageList);
2915        if (showLoadMoreMessages(conversation)) {
2916            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2917        }
2918        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2919            ChatState state = conversation.getIncomingChatState();
2920            if (state == ChatState.COMPOSING) {
2921                this.messageList.add(
2922                        Message.createStatusMessage(
2923                                conversation,
2924                                getString(R.string.contact_is_typing, conversation.getName())));
2925            } else if (state == ChatState.PAUSED) {
2926                this.messageList.add(
2927                        Message.createStatusMessage(
2928                                conversation,
2929                                getString(
2930                                        R.string.contact_has_stopped_typing,
2931                                        conversation.getName())));
2932            } else {
2933                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2934                    final Message message = this.messageList.get(i);
2935                    if (message.getType() != Message.TYPE_STATUS) {
2936                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2937                            return;
2938                        } else {
2939                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2940                                this.messageList.add(
2941                                        i + 1,
2942                                        Message.createStatusMessage(
2943                                                conversation,
2944                                                getString(
2945                                                        R.string.contact_has_read_up_to_this_point,
2946                                                        conversation.getName())));
2947                                return;
2948                            }
2949                        }
2950                    }
2951                }
2952            }
2953        } else {
2954            final MucOptions mucOptions = conversation.getMucOptions();
2955            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2956            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2957            ChatState state = ChatState.COMPOSING;
2958            List<MucOptions.User> users =
2959                    conversation.getMucOptions().getUsersWithChatState(state, 5);
2960            if (users.size() == 0) {
2961                state = ChatState.PAUSED;
2962                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2963            }
2964            if (mucOptions.isPrivateAndNonAnonymous()) {
2965                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2966                    final Set<ReadByMarker> markersForMessage =
2967                            messageList.get(i).getReadByMarkers();
2968                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2969                    for (ReadByMarker marker : markersForMessage) {
2970                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2971                            addedMarkers.add(
2972                                    marker); // may be put outside this condition. set should do
2973                                             // dedup anyway
2974                            MucOptions.User user = mucOptions.findUser(marker);
2975                            if (user != null && !users.contains(user)) {
2976                                shownMarkers.add(user);
2977                            }
2978                        }
2979                    }
2980                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2981                    final Message statusMessage;
2982                    final int size = shownMarkers.size();
2983                    if (size > 1) {
2984                        final String body;
2985                        if (size <= 4) {
2986                            body =
2987                                    getString(
2988                                            R.string.contacts_have_read_up_to_this_point,
2989                                            UIHelper.concatNames(shownMarkers));
2990                        } else if (ReadByMarker.allUsersRepresented(
2991                                allUsers, markersForMessage, markerForSender)) {
2992                            body = getString(R.string.everyone_has_read_up_to_this_point);
2993                        } else {
2994                            body =
2995                                    getString(
2996                                            R.string.contacts_and_n_more_have_read_up_to_this_point,
2997                                            UIHelper.concatNames(shownMarkers, 3),
2998                                            size - 3);
2999                        }
3000                        statusMessage = Message.createStatusMessage(conversation, body);
3001                        statusMessage.setCounterparts(shownMarkers);
3002                    } else if (size == 1) {
3003                        statusMessage =
3004                                Message.createStatusMessage(
3005                                        conversation,
3006                                        getString(
3007                                                R.string.contact_has_read_up_to_this_point,
3008                                                UIHelper.getDisplayName(shownMarkers.get(0))));
3009                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
3010                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
3011                    } else {
3012                        statusMessage = null;
3013                    }
3014                    if (statusMessage != null) {
3015                        this.messageList.add(i + 1, statusMessage);
3016                    }
3017                    addedMarkers.add(markerForSender);
3018                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
3019                        break;
3020                    }
3021                }
3022            }
3023            if (users.size() > 0) {
3024                Message statusMessage;
3025                if (users.size() == 1) {
3026                    MucOptions.User user = users.get(0);
3027                    int id =
3028                            state == ChatState.COMPOSING
3029                                    ? R.string.contact_is_typing
3030                                    : R.string.contact_has_stopped_typing;
3031                    statusMessage =
3032                            Message.createStatusMessage(
3033                                    conversation, getString(id, UIHelper.getDisplayName(user)));
3034                    statusMessage.setTrueCounterpart(user.getRealJid());
3035                    statusMessage.setCounterpart(user.getFullJid());
3036                } else {
3037                    int id =
3038                            state == ChatState.COMPOSING
3039                                    ? R.string.contacts_are_typing
3040                                    : R.string.contacts_have_stopped_typing;
3041                    statusMessage =
3042                            Message.createStatusMessage(
3043                                    conversation, getString(id, UIHelper.concatNames(users)));
3044                    statusMessage.setCounterparts(users);
3045                }
3046                this.messageList.add(statusMessage);
3047            }
3048        }
3049    }
3050
3051    private void stopScrolling() {
3052        long now = SystemClock.uptimeMillis();
3053        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
3054        binding.messagesView.dispatchTouchEvent(cancel);
3055    }
3056
3057    private boolean showLoadMoreMessages(final Conversation c) {
3058        if (activity == null || activity.xmppConnectionService == null) {
3059            return false;
3060        }
3061        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
3062        final MessageArchiveService service =
3063                activity.xmppConnectionService.getMessageArchiveService();
3064        return mam
3065                && (c.getLastClearHistory().getTimestamp() != 0
3066                        || (c.countMessages() == 0
3067                                && c.messagesLoaded.get()
3068                                && c.hasMessagesLeftOnServer()
3069                                && !service.queryInProgress(c)));
3070    }
3071
3072    private boolean hasMamSupport(final Conversation c) {
3073        if (c.getMode() == Conversation.MODE_SINGLE) {
3074            final XmppConnection connection = c.getAccount().getXmppConnection();
3075            return connection != null && connection.getFeatures().mam();
3076        } else {
3077            return c.getMucOptions().mamSupport();
3078        }
3079    }
3080
3081    protected void showSnackbar(
3082            final int message, final int action, final OnClickListener clickListener) {
3083        showSnackbar(message, action, clickListener, null);
3084    }
3085
3086    protected void showSnackbar(
3087            final int message,
3088            final int action,
3089            final OnClickListener clickListener,
3090            final View.OnLongClickListener longClickListener) {
3091        this.binding.snackbar.setVisibility(View.VISIBLE);
3092        this.binding.snackbar.setOnClickListener(null);
3093        this.binding.snackbarMessage.setText(message);
3094        this.binding.snackbarMessage.setOnClickListener(null);
3095        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
3096        if (action != 0) {
3097            this.binding.snackbarAction.setText(action);
3098        }
3099        this.binding.snackbarAction.setOnClickListener(clickListener);
3100        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
3101    }
3102
3103    protected void hideSnackbar() {
3104        this.binding.snackbar.setVisibility(View.GONE);
3105    }
3106
3107    protected void sendMessage(Message message) {
3108        activity.xmppConnectionService.sendMessage(message);
3109        messageSent();
3110    }
3111
3112    protected void sendPgpMessage(final Message message) {
3113        final XmppConnectionService xmppService = activity.xmppConnectionService;
3114        final Contact contact = message.getConversation().getContact();
3115        if (!activity.hasPgp()) {
3116            activity.showInstallPgpDialog();
3117            return;
3118        }
3119        if (conversation.getAccount().getPgpSignature() == null) {
3120            activity.announcePgp(
3121                    conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
3122            return;
3123        }
3124        if (!mSendingPgpMessage.compareAndSet(false, true)) {
3125            Log.d(Config.LOGTAG, "sending pgp message already in progress");
3126        }
3127        if (conversation.getMode() == Conversation.MODE_SINGLE) {
3128            if (contact.getPgpKeyId() != 0) {
3129                xmppService
3130                        .getPgpEngine()
3131                        .hasKey(
3132                                contact,
3133                                new UiCallback<Contact>() {
3134
3135                                    @Override
3136                                    public void userInputRequired(
3137                                            PendingIntent pi, Contact contact) {
3138                                        startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
3139                                    }
3140
3141                                    @Override
3142                                    public void success(Contact contact) {
3143                                        encryptTextMessage(message);
3144                                    }
3145
3146                                    @Override
3147                                    public void error(int error, Contact contact) {
3148                                        activity.runOnUiThread(
3149                                                () ->
3150                                                        Toast.makeText(
3151                                                                        activity,
3152                                                                        R.string
3153                                                                                .unable_to_connect_to_keychain,
3154                                                                        Toast.LENGTH_SHORT)
3155                                                                .show());
3156                                        mSendingPgpMessage.set(false);
3157                                    }
3158                                });
3159
3160            } else {
3161                showNoPGPKeyDialog(
3162                        false,
3163                        (dialog, which) -> {
3164                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3165                            xmppService.updateConversation(conversation);
3166                            message.setEncryption(Message.ENCRYPTION_NONE);
3167                            xmppService.sendMessage(message);
3168                            messageSent();
3169                        });
3170            }
3171        } else {
3172            if (conversation.getMucOptions().pgpKeysInUse()) {
3173                if (!conversation.getMucOptions().everybodyHasKeys()) {
3174                    Toast warning =
3175                            Toast.makeText(
3176                                    getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
3177                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
3178                    warning.show();
3179                }
3180                encryptTextMessage(message);
3181            } else {
3182                showNoPGPKeyDialog(
3183                        true,
3184                        (dialog, which) -> {
3185                            conversation.setNextEncryption(Message.ENCRYPTION_NONE);
3186                            message.setEncryption(Message.ENCRYPTION_NONE);
3187                            xmppService.updateConversation(conversation);
3188                            xmppService.sendMessage(message);
3189                            messageSent();
3190                        });
3191            }
3192        }
3193    }
3194
3195    public void encryptTextMessage(Message message) {
3196        activity.xmppConnectionService
3197                .getPgpEngine()
3198                .encrypt(
3199                        message,
3200                        new UiCallback<Message>() {
3201
3202                            @Override
3203                            public void userInputRequired(PendingIntent pi, Message message) {
3204                                startPendingIntent(pi, REQUEST_SEND_MESSAGE);
3205                            }
3206
3207                            @Override
3208                            public void success(Message message) {
3209                                // TODO the following two call can be made before the callback
3210                                getActivity().runOnUiThread(() -> messageSent());
3211                            }
3212
3213                            @Override
3214                            public void error(final int error, Message message) {
3215                                getActivity()
3216                                        .runOnUiThread(
3217                                                () -> {
3218                                                    doneSendingPgpMessage();
3219                                                    Toast.makeText(
3220                                                                    getActivity(),
3221                                                                    error == 0
3222                                                                            ? R.string
3223                                                                                    .unable_to_connect_to_keychain
3224                                                                            : error,
3225                                                                    Toast.LENGTH_SHORT)
3226                                                            .show();
3227                                                });
3228                            }
3229                        });
3230    }
3231
3232    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
3233        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
3234        builder.setIconAttribute(android.R.attr.alertDialogIcon);
3235        if (plural) {
3236            builder.setTitle(getString(R.string.no_pgp_keys));
3237            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
3238        } else {
3239            builder.setTitle(getString(R.string.no_pgp_key));
3240            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
3241        }
3242        builder.setNegativeButton(getString(R.string.cancel), null);
3243        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
3244        builder.create().show();
3245    }
3246
3247    public void appendText(String text, final boolean doNotAppend) {
3248        if (text == null) {
3249            return;
3250        }
3251        final Editable editable = this.binding.textinput.getText();
3252        String previous = editable == null ? "" : editable.toString();
3253        if (doNotAppend && !TextUtils.isEmpty(previous)) {
3254            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG)
3255                    .show();
3256            return;
3257        }
3258        if (UIHelper.isLastLineQuote(previous)) {
3259            text = '\n' + text;
3260        } else if (previous.length() != 0
3261                && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
3262            text = " " + text;
3263        }
3264        this.binding.textinput.append(text);
3265    }
3266
3267    @Override
3268    public boolean onEnterPressed(final boolean isCtrlPressed) {
3269        if (isCtrlPressed || enterIsSend()) {
3270            sendMessage();
3271            return true;
3272        }
3273        return false;
3274    }
3275
3276    private boolean enterIsSend() {
3277        final SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
3278        return p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
3279    }
3280
3281    public boolean onArrowUpCtrlPressed() {
3282        final Message lastEditableMessage =
3283                conversation == null ? null : conversation.getLastEditableMessage();
3284        if (lastEditableMessage != null) {
3285            correctMessage(lastEditableMessage);
3286            return true;
3287        } else {
3288            Toast.makeText(getActivity(), R.string.could_not_correct_message, Toast.LENGTH_LONG)
3289                    .show();
3290            return false;
3291        }
3292    }
3293
3294    @Override
3295    public void onTypingStarted() {
3296        final XmppConnectionService service =
3297                activity == null ? null : activity.xmppConnectionService;
3298        if (service == null) {
3299            return;
3300        }
3301        final Account.State status = conversation.getAccount().getStatus();
3302        if (status == Account.State.ONLINE
3303                && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
3304            service.sendChatState(conversation);
3305        }
3306        runOnUiThread(this::updateSendButton);
3307    }
3308
3309    @Override
3310    public void onTypingStopped() {
3311        final XmppConnectionService service =
3312                activity == null ? null : activity.xmppConnectionService;
3313        if (service == null) {
3314            return;
3315        }
3316        final Account.State status = conversation.getAccount().getStatus();
3317        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
3318            service.sendChatState(conversation);
3319        }
3320    }
3321
3322    @Override
3323    public void onTextDeleted() {
3324        final XmppConnectionService service =
3325                activity == null ? null : activity.xmppConnectionService;
3326        if (service == null) {
3327            return;
3328        }
3329        final Account.State status = conversation.getAccount().getStatus();
3330        if (status == Account.State.ONLINE
3331                && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
3332            service.sendChatState(conversation);
3333        }
3334        if (storeNextMessage()) {
3335            runOnUiThread(
3336                    () -> {
3337                        if (activity == null) {
3338                            return;
3339                        }
3340                        activity.onConversationsListItemUpdated();
3341                    });
3342        }
3343        runOnUiThread(this::updateSendButton);
3344    }
3345
3346    @Override
3347    public void onTextChanged() {
3348        if (conversation != null && conversation.getCorrectingMessage() != null) {
3349            runOnUiThread(this::updateSendButton);
3350        }
3351    }
3352
3353    @Override
3354    public boolean onTabPressed(boolean repeated) {
3355        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
3356            return false;
3357        }
3358        if (repeated) {
3359            completionIndex++;
3360        } else {
3361            lastCompletionLength = 0;
3362            completionIndex = 0;
3363            final String content = this.binding.textinput.getText().toString();
3364            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
3365            int start =
3366                    lastCompletionCursor > 0
3367                            ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1
3368                            : 0;
3369            firstWord = start == 0;
3370            incomplete = content.substring(start, lastCompletionCursor);
3371        }
3372        List<String> completions = new ArrayList<>();
3373        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
3374            String name = user.getName();
3375            if (name != null && name.startsWith(incomplete)) {
3376                completions.add(name + (firstWord ? ": " : " "));
3377            }
3378        }
3379        Collections.sort(completions);
3380        if (completions.size() > completionIndex) {
3381            String completion = completions.get(completionIndex).substring(incomplete.length());
3382            this.binding
3383                    .textinput
3384                    .getEditableText()
3385                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3386            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
3387            lastCompletionLength = completion.length();
3388        } else {
3389            completionIndex = -1;
3390            this.binding
3391                    .textinput
3392                    .getEditableText()
3393                    .delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
3394            lastCompletionLength = 0;
3395        }
3396        return true;
3397    }
3398
3399    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
3400        try {
3401            getActivity()
3402                    .startIntentSenderForResult(
3403                            pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
3404        } catch (final SendIntentException ignored) {
3405        }
3406    }
3407
3408    @Override
3409    public void onBackendConnected() {
3410        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
3411        String uuid = pendingConversationsUuid.pop();
3412        if (uuid != null) {
3413            if (!findAndReInitByUuidOrArchive(uuid)) {
3414                return;
3415            }
3416        } else {
3417            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
3418                clearPending();
3419                activity.onConversationArchived(conversation);
3420                return;
3421            }
3422        }
3423        ActivityResult activityResult = postponedActivityResult.pop();
3424        if (activityResult != null) {
3425            handleActivityResult(activityResult);
3426        }
3427        clearPending();
3428    }
3429
3430    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
3431        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
3432        if (conversation == null) {
3433            clearPending();
3434            activity.onConversationArchived(null);
3435            return false;
3436        }
3437        reInit(conversation);
3438        ScrollState scrollState = pendingScrollState.pop();
3439        String lastMessageUuid = pendingLastMessageUuid.pop();
3440        List<Attachment> attachments = pendingMediaPreviews.pop();
3441        if (scrollState != null) {
3442            setScrollPosition(scrollState, lastMessageUuid);
3443        }
3444        if (attachments != null && attachments.size() > 0) {
3445            Log.d(Config.LOGTAG, "had attachments on restore");
3446            mediaPreviewAdapter.addMediaPreviews(attachments);
3447            toggleInputMethod();
3448        }
3449        return true;
3450    }
3451
3452    private void clearPending() {
3453        if (postponedActivityResult.clear()) {
3454            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
3455            if (pendingTakePhotoUri.clear()) {
3456                Log.e(Config.LOGTAG, "cleared pending photo uri");
3457            }
3458        }
3459        if (pendingScrollState.clear()) {
3460            Log.e(Config.LOGTAG, "cleared scroll state");
3461        }
3462        if (pendingConversationsUuid.clear()) {
3463            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
3464        }
3465        if (pendingMediaPreviews.clear()) {
3466            Log.e(Config.LOGTAG, "cleared pending media previews");
3467        }
3468    }
3469
3470    public Conversation getConversation() {
3471        return conversation;
3472    }
3473
3474    @Override
3475    public void onContactPictureLongClicked(View v, final Message message) {
3476        final String fingerprint;
3477        if (message.getEncryption() == Message.ENCRYPTION_PGP
3478                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3479            fingerprint = "pgp";
3480        } else {
3481            fingerprint = message.getFingerprint();
3482        }
3483        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
3484        final Contact contact = message.getContact();
3485        if (message.getStatus() <= Message.STATUS_RECEIVED
3486                && (contact == null || !contact.isSelf())) {
3487            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
3488                final Jid cp = message.getCounterpart();
3489                if (cp == null || cp.isBareJid()) {
3490                    return;
3491                }
3492                final Jid tcp = message.getTrueCounterpart();
3493                final User userByRealJid =
3494                        tcp != null
3495                                ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp)
3496                                : null;
3497                final User user =
3498                        userByRealJid != null
3499                                ? userByRealJid
3500                                : conversation.getMucOptions().findUserByFullJid(cp);
3501                popupMenu.inflate(R.menu.muc_details_context);
3502                final Menu menu = popupMenu.getMenu();
3503                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(
3504                        activity, menu, conversation, user);
3505                popupMenu.setOnMenuItemClickListener(
3506                        menuItem ->
3507                                MucDetailsContextMenuHelper.onContextItemSelected(
3508                                        menuItem, user, activity, fingerprint));
3509            } else {
3510                popupMenu.inflate(R.menu.one_on_one_context);
3511                popupMenu.setOnMenuItemClickListener(
3512                        item -> {
3513                            switch (item.getItemId()) {
3514                                case R.id.action_contact_details:
3515                                    activity.switchToContactDetails(
3516                                            message.getContact(), fingerprint);
3517                                    break;
3518                                case R.id.action_show_qr_code:
3519                                    activity.showQrCode(
3520                                            "xmpp:"
3521                                                    + message.getContact()
3522                                                            .getJid()
3523                                                            .asBareJid()
3524                                                            .toEscapedString());
3525                                    break;
3526                            }
3527                            return true;
3528                        });
3529            }
3530        } else {
3531            popupMenu.inflate(R.menu.account_context);
3532            final Menu menu = popupMenu.getMenu();
3533            menu.findItem(R.id.action_manage_accounts)
3534                    .setVisible(QuickConversationsService.isConversations());
3535            popupMenu.setOnMenuItemClickListener(
3536                    item -> {
3537                        final XmppActivity activity = this.activity;
3538                        if (activity == null) {
3539                            Log.e(Config.LOGTAG, "Unable to perform action. no context provided");
3540                            return true;
3541                        }
3542                        switch (item.getItemId()) {
3543                            case R.id.action_show_qr_code:
3544                                activity.showQrCode(conversation.getAccount().getShareableUri());
3545                                break;
3546                            case R.id.action_account_details:
3547                                activity.switchToAccount(
3548                                        message.getConversation().getAccount(), fingerprint);
3549                                break;
3550                            case R.id.action_manage_accounts:
3551                                AccountUtils.launchManageAccounts(activity);
3552                                break;
3553                        }
3554                        return true;
3555                    });
3556        }
3557        popupMenu.show();
3558    }
3559
3560    @Override
3561    public void onContactPictureClicked(Message message) {
3562        String fingerprint;
3563        if (message.getEncryption() == Message.ENCRYPTION_PGP
3564                || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
3565            fingerprint = "pgp";
3566        } else {
3567            fingerprint = message.getFingerprint();
3568        }
3569        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
3570        if (received) {
3571            if (message.getConversation() instanceof Conversation
3572                    && message.getConversation().getMode() == Conversation.MODE_MULTI) {
3573                Jid tcp = message.getTrueCounterpart();
3574                Jid user = message.getCounterpart();
3575                if (user != null && !user.isBareJid()) {
3576                    final MucOptions mucOptions =
3577                            ((Conversation) message.getConversation()).getMucOptions();
3578                    if (mucOptions.participating()
3579                            || ((Conversation) message.getConversation()).getNextCounterpart()
3580                                    != null) {
3581                        if (!mucOptions.isUserInRoom(user)
3582                                && mucOptions.findUserByRealJid(
3583                                                tcp == null ? null : tcp.asBareJid())
3584                                        == null) {
3585                            Toast.makeText(
3586                                            getActivity(),
3587                                            activity.getString(
3588                                                    R.string.user_has_left_conference,
3589                                                    user.getResource()),
3590                                            Toast.LENGTH_SHORT)
3591                                    .show();
3592                        }
3593                        highlightInConference(user.getResource());
3594                    } else {
3595                        Toast.makeText(
3596                                        getActivity(),
3597                                        R.string.you_are_not_participating,
3598                                        Toast.LENGTH_SHORT)
3599                                .show();
3600                    }
3601                }
3602                return;
3603            } else {
3604                if (!message.getContact().isSelf()) {
3605                    activity.switchToContactDetails(message.getContact(), fingerprint);
3606                    return;
3607                }
3608            }
3609        }
3610        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
3611    }
3612
3613    private Activity requireActivity() {
3614        final Activity activity = getActivity();
3615        if (activity == null) {
3616            throw new IllegalStateException("Activity not attached");
3617        }
3618        return activity;
3619    }
3620}