ConversationFragment.java

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