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