ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.Activity;
   6import android.app.FragmentManager;
   7import android.content.SharedPreferences;
   8import android.content.pm.PackageManager;
   9import android.databinding.DataBindingUtil;
  10import android.net.Uri;
  11import android.os.Build;
  12import android.preference.PreferenceManager;
  13import android.provider.MediaStore;
  14import android.support.annotation.IdRes;
  15import android.support.annotation.NonNull;
  16import android.support.annotation.StringRes;
  17import android.support.v7.app.AlertDialog;
  18import android.app.Fragment;
  19import android.app.PendingIntent;
  20import android.content.Context;
  21import android.content.DialogInterface;
  22import android.content.Intent;
  23import android.content.IntentSender.SendIntentException;
  24import android.os.Bundle;
  25import android.os.Handler;
  26import android.os.SystemClock;
  27import android.support.v13.view.inputmethod.InputConnectionCompat;
  28import android.support.v13.view.inputmethod.InputContentInfoCompat;
  29import android.text.Editable;
  30import android.text.TextUtils;
  31import android.util.Log;
  32import android.view.ContextMenu;
  33import android.view.ContextMenu.ContextMenuInfo;
  34import android.view.Gravity;
  35import android.view.LayoutInflater;
  36import android.view.Menu;
  37import android.view.MenuInflater;
  38import android.view.MenuItem;
  39import android.view.MotionEvent;
  40import android.view.View;
  41import android.view.View.OnClickListener;
  42import android.view.ViewGroup;
  43import android.view.inputmethod.EditorInfo;
  44import android.view.inputmethod.InputMethodManager;
  45import android.widget.AbsListView;
  46import android.widget.AbsListView.OnScrollListener;
  47import android.widget.AdapterView;
  48import android.widget.AdapterView.AdapterContextMenuInfo;
  49import android.widget.CheckBox;
  50import android.widget.ListView;
  51import android.widget.PopupMenu;
  52import android.widget.TextView.OnEditorActionListener;
  53import android.widget.Toast;
  54
  55import java.util.ArrayList;
  56import java.util.Arrays;
  57import java.util.Collections;
  58import java.util.HashSet;
  59import java.util.Iterator;
  60import java.util.List;
  61import java.util.Set;
  62import java.util.UUID;
  63import java.util.concurrent.atomic.AtomicBoolean;
  64
  65import eu.siacs.conversations.Config;
  66import eu.siacs.conversations.R;
  67import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  68import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  69import eu.siacs.conversations.databinding.FragmentConversationBinding;
  70import eu.siacs.conversations.entities.Account;
  71import eu.siacs.conversations.entities.Blockable;
  72import eu.siacs.conversations.entities.Contact;
  73import eu.siacs.conversations.entities.Conversation;
  74import eu.siacs.conversations.entities.Conversational;
  75import eu.siacs.conversations.entities.DownloadableFile;
  76import eu.siacs.conversations.entities.Message;
  77import eu.siacs.conversations.entities.MucOptions;
  78import eu.siacs.conversations.entities.MucOptions.User;
  79import eu.siacs.conversations.entities.Presence;
  80import eu.siacs.conversations.entities.ReadByMarker;
  81import eu.siacs.conversations.entities.Transferable;
  82import eu.siacs.conversations.entities.TransferablePlaceholder;
  83import eu.siacs.conversations.http.HttpDownloadConnection;
  84import eu.siacs.conversations.persistance.FileBackend;
  85import eu.siacs.conversations.services.MessageArchiveService;
  86import eu.siacs.conversations.services.QuickConversationsService;
  87import eu.siacs.conversations.services.XmppConnectionService;
  88import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  89import eu.siacs.conversations.ui.adapter.MessageAdapter;
  90import eu.siacs.conversations.ui.util.ActivityResult;
  91import eu.siacs.conversations.ui.util.Attachment;
  92import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  93import eu.siacs.conversations.ui.util.DateSeparator;
  94import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
  95import eu.siacs.conversations.ui.util.ListViewUtils;
  96import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
  97import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
  98import eu.siacs.conversations.ui.util.PendingItem;
  99import eu.siacs.conversations.ui.util.PresenceSelector;
 100import eu.siacs.conversations.ui.util.ScrollState;
 101import eu.siacs.conversations.ui.util.SendButtonAction;
 102import eu.siacs.conversations.ui.util.SendButtonTool;
 103import eu.siacs.conversations.ui.util.ShareUtil;
 104import eu.siacs.conversations.ui.util.ViewUtil;
 105import eu.siacs.conversations.ui.widget.EditMessage;
 106import eu.siacs.conversations.utils.AccountUtils;
 107import eu.siacs.conversations.utils.Compatibility;
 108import eu.siacs.conversations.utils.GeoHelper;
 109import eu.siacs.conversations.utils.MessageUtils;
 110import eu.siacs.conversations.utils.NickValidityChecker;
 111import eu.siacs.conversations.utils.Patterns;
 112import eu.siacs.conversations.utils.PermissionUtils;
 113import eu.siacs.conversations.utils.QuickLoader;
 114import eu.siacs.conversations.utils.StylingHelper;
 115import eu.siacs.conversations.utils.TimeframeUtils;
 116import eu.siacs.conversations.utils.UIHelper;
 117import eu.siacs.conversations.xmpp.XmppConnection;
 118import eu.siacs.conversations.xmpp.chatstate.ChatState;
 119import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 120import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 121import rocks.xmpp.addr.Jid;
 122
 123import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
 124import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
 125import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
 126import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
 127import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
 128import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
 129
 130
 131public class ConversationFragment extends XmppFragment implements EditMessage.KeyboardListener, MessageAdapter.OnContactPictureLongClicked, MessageAdapter.OnContactPictureClicked {
 132
 133
 134    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 135    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 136    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 137    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 138    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 139    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 140    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 141    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 142    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 143    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 144    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 145    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 146    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 147    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 148    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 149    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 150
 151    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 152    public static final String STATE_CONVERSATION_UUID = ConversationFragment.class.getName() + ".uuid";
 153    public static final String STATE_SCROLL_POSITION = ConversationFragment.class.getName() + ".scroll_position";
 154    public static final String STATE_PHOTO_URI = ConversationFragment.class.getName() + ".media_previews";
 155    public static final String STATE_MEDIA_PREVIEWS = ConversationFragment.class.getName() + ".take_photo_uri";
 156    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 157
 158    private final List<Message> messageList = new ArrayList<>();
 159    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 160    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 161    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 162    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 163    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 164    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 165    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 166    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 167    public Uri mPendingEditorContent = null;
 168    protected MessageAdapter messageListAdapter;
 169    private MediaPreviewAdapter mediaPreviewAdapter;
 170    private String lastMessageUuid = null;
 171    private Conversation conversation;
 172    private FragmentConversationBinding binding;
 173    private Toast messageLoaderToast;
 174    private ConversationsActivity activity;
 175    private boolean reInitRequiredOnStart = true;
 176    private OnClickListener clickToMuc = new OnClickListener() {
 177
 178        @Override
 179        public void onClick(View v) {
 180            Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 181            intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 182            intent.putExtra("uuid", conversation.getUuid());
 183            startActivity(intent);
 184        }
 185    };
 186    private OnClickListener leaveMuc = new OnClickListener() {
 187
 188        @Override
 189        public void onClick(View v) {
 190            activity.xmppConnectionService.archiveConversation(conversation);
 191        }
 192    };
 193    private OnClickListener joinMuc = new OnClickListener() {
 194
 195        @Override
 196        public void onClick(View v) {
 197            activity.xmppConnectionService.joinMuc(conversation);
 198        }
 199    };
 200
 201    private OnClickListener acceptJoin = new OnClickListener() {
 202        @Override
 203        public void onClick(View v) {
 204            conversation.setAttribute("accept_non_anonymous", true);
 205            activity.xmppConnectionService.updateConversation(conversation);
 206            activity.xmppConnectionService.joinMuc(conversation);
 207        }
 208    };
 209
 210    private OnClickListener enterPassword = new OnClickListener() {
 211
 212        @Override
 213        public void onClick(View v) {
 214            MucOptions muc = conversation.getMucOptions();
 215            String password = muc.getPassword();
 216            if (password == null) {
 217                password = "";
 218            }
 219            activity.quickPasswordEdit(password, value -> {
 220                activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 221                return null;
 222            });
 223        }
 224    };
 225    private OnScrollListener mOnScrollListener = new OnScrollListener() {
 226
 227        @Override
 228        public void onScrollStateChanged(AbsListView view, int scrollState) {
 229            if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 230                fireReadEvent();
 231            }
 232        }
 233
 234        @Override
 235        public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 236            toggleScrollDownButton(view);
 237            synchronized (ConversationFragment.this.messageList) {
 238                if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 239                    long timestamp;
 240                    if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 241                        timestamp = messageList.get(1).getTimeSent();
 242                    } else {
 243                        timestamp = messageList.get(0).getTimeSent();
 244                    }
 245                    activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 246                        @Override
 247                        public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 248                            if (ConversationFragment.this.conversation != conversation) {
 249                                conversation.messagesLoaded.set(true);
 250                                return;
 251                            }
 252                            runOnUiThread(() -> {
 253                                synchronized (messageList) {
 254                                    final int oldPosition = binding.messagesView.getFirstVisiblePosition();
 255                                    Message message = null;
 256                                    int childPos;
 257                                    for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 258                                        message = messageList.get(oldPosition + childPos);
 259                                        if (message.getType() != Message.TYPE_STATUS) {
 260                                            break;
 261                                        }
 262                                    }
 263                                    final String uuid = message != null ? message.getUuid() : null;
 264                                    View v = binding.messagesView.getChildAt(childPos);
 265                                    final int pxOffset = (v == null) ? 0 : v.getTop();
 266                                    ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 267                                    try {
 268                                        updateStatusMessages();
 269                                    } catch (IllegalStateException e) {
 270                                        Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 271                                    }
 272                                    messageListAdapter.notifyDataSetChanged();
 273                                    int pos = Math.max(getIndexOf(uuid, messageList), 0);
 274                                    binding.messagesView.setSelectionFromTop(pos, pxOffset);
 275                                    if (messageLoaderToast != null) {
 276                                        messageLoaderToast.cancel();
 277                                    }
 278                                    conversation.messagesLoaded.set(true);
 279                                }
 280                            });
 281                        }
 282
 283                        @Override
 284                        public void informUser(final int resId) {
 285
 286                            runOnUiThread(() -> {
 287                                if (messageLoaderToast != null) {
 288                                    messageLoaderToast.cancel();
 289                                }
 290                                if (ConversationFragment.this.conversation != conversation) {
 291                                    return;
 292                                }
 293                                messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 294                                messageLoaderToast.show();
 295                            });
 296
 297                        }
 298                    });
 299
 300                }
 301            }
 302        }
 303    };
 304    private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 305        @Override
 306        public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 307            // try to get permission to read the image, if applicable
 308            if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 309                try {
 310                    inputContentInfo.requestPermission();
 311                } catch (Exception e) {
 312                    Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 313                    Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()), Toast.LENGTH_LONG
 314                    ).show();
 315                    return false;
 316                }
 317            }
 318            if (hasPermissions(REQUEST_ADD_EDITOR_CONTENT, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 319                attachEditorContentToConversation(inputContentInfo.getContentUri());
 320            } else {
 321                mPendingEditorContent = inputContentInfo.getContentUri();
 322            }
 323            return true;
 324        }
 325    };
 326    private Message selectedMessage;
 327    private OnClickListener mEnableAccountListener = new OnClickListener() {
 328        @Override
 329        public void onClick(View v) {
 330            final Account account = conversation == null ? null : conversation.getAccount();
 331            if (account != null) {
 332                account.setOption(Account.OPTION_DISABLED, false);
 333                activity.xmppConnectionService.updateAccount(account);
 334            }
 335        }
 336    };
 337    private OnClickListener mUnblockClickListener = new OnClickListener() {
 338        @Override
 339        public void onClick(final View v) {
 340            v.post(() -> v.setVisibility(View.INVISIBLE));
 341            if (conversation.isDomainBlocked()) {
 342                BlockContactDialog.show(activity, conversation);
 343            } else {
 344                unblockConversation(conversation);
 345            }
 346        }
 347    };
 348    private OnClickListener mBlockClickListener = this::showBlockSubmenu;
 349    private OnClickListener mAddBackClickListener = new OnClickListener() {
 350
 351        @Override
 352        public void onClick(View v) {
 353            final Contact contact = conversation == null ? null : conversation.getContact();
 354            if (contact != null) {
 355                activity.xmppConnectionService.createContact(contact, true);
 356                activity.switchToContactDetails(contact);
 357            }
 358        }
 359    };
 360    private View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 361    private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 362        @Override
 363        public void onClick(View v) {
 364            final Contact contact = conversation == null ? null : conversation.getContact();
 365            if (contact != null) {
 366                activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 367                        activity.xmppConnectionService.getPresenceGenerator()
 368                                .sendPresenceUpdatesTo(contact));
 369                hideSnackbar();
 370            }
 371        }
 372    };
 373    protected OnClickListener clickToDecryptListener = new OnClickListener() {
 374
 375        @Override
 376        public void onClick(View v) {
 377            PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 378            if (pendingIntent != null) {
 379                try {
 380                    getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(),
 381                            REQUEST_DECRYPT_PGP,
 382                            null,
 383                            0,
 384                            0,
 385                            0);
 386                } catch (SendIntentException e) {
 387                    Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 388                    conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 389                }
 390            }
 391            updateSnackBar(conversation);
 392        }
 393    };
 394    private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 395    private OnEditorActionListener mEditorActionListener = (v, actionId, event) -> {
 396        if (actionId == EditorInfo.IME_ACTION_SEND) {
 397            InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 398            if (imm != null && imm.isFullscreenMode()) {
 399                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 400            }
 401            sendMessage();
 402            return true;
 403        } else {
 404            return false;
 405        }
 406    };
 407    private OnClickListener mScrollButtonListener = new OnClickListener() {
 408
 409        @Override
 410        public void onClick(View v) {
 411            stopScrolling();
 412            setSelection(binding.messagesView.getCount() - 1, true);
 413        }
 414    };
 415    private OnClickListener mSendButtonListener = new OnClickListener() {
 416
 417        @Override
 418        public void onClick(View v) {
 419            Object tag = v.getTag();
 420            if (tag instanceof SendButtonAction) {
 421                SendButtonAction action = (SendButtonAction) tag;
 422                switch (action) {
 423                    case TAKE_PHOTO:
 424                    case RECORD_VIDEO:
 425                    case SEND_LOCATION:
 426                    case RECORD_VOICE:
 427                    case CHOOSE_PICTURE:
 428                        attachFile(action.toChoice());
 429                        break;
 430                    case CANCEL:
 431                        if (conversation != null) {
 432                            if (conversation.setCorrectingMessage(null)) {
 433                                binding.textinput.setText("");
 434                                binding.textinput.append(conversation.getDraftMessage());
 435                                conversation.setDraftMessage(null);
 436                            } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 437                                conversation.setNextCounterpart(null);
 438                                binding.textinput.setText("");
 439                            } else {
 440                                binding.textinput.setText("");
 441                            }
 442                            updateChatMsgHint();
 443                            updateSendButton();
 444                            updateEditablity();
 445                        }
 446                        break;
 447                    default:
 448                        sendMessage();
 449                }
 450            } else {
 451                sendMessage();
 452            }
 453        }
 454    };
 455    private int completionIndex = 0;
 456    private int lastCompletionLength = 0;
 457    private String incomplete;
 458    private int lastCompletionCursor;
 459    private boolean firstWord = false;
 460    private Message mPendingDownloadableMessage;
 461
 462    private static ConversationFragment findConversationFragment(Activity activity) {
 463        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 464        if (fragment instanceof ConversationFragment) {
 465            return (ConversationFragment) fragment;
 466        }
 467        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 468        if (fragment instanceof ConversationFragment) {
 469            return (ConversationFragment) fragment;
 470        }
 471        return null;
 472    }
 473
 474    public static void startStopPending(Activity activity) {
 475        ConversationFragment fragment = findConversationFragment(activity);
 476        if (fragment != null) {
 477            fragment.messageListAdapter.startStopPending();
 478        }
 479    }
 480
 481    public static void downloadFile(Activity activity, Message message) {
 482        ConversationFragment fragment = findConversationFragment(activity);
 483        if (fragment != null) {
 484            fragment.startDownloadable(message);
 485        }
 486    }
 487
 488    public static void registerPendingMessage(Activity activity, Message message) {
 489        ConversationFragment fragment = findConversationFragment(activity);
 490        if (fragment != null) {
 491            fragment.pendingMessage.push(message);
 492        }
 493    }
 494
 495    public static void openPendingMessage(Activity activity) {
 496        ConversationFragment fragment = findConversationFragment(activity);
 497        if (fragment != null) {
 498            Message message = fragment.pendingMessage.pop();
 499            if (message != null) {
 500                fragment.messageListAdapter.openDownloadable(message);
 501            }
 502        }
 503    }
 504
 505    public static Conversation getConversation(Activity activity) {
 506        return getConversation(activity, R.id.secondary_fragment);
 507    }
 508
 509    private static Conversation getConversation(Activity activity, @IdRes int res) {
 510        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 511        if (fragment != null && fragment instanceof ConversationFragment) {
 512            return ((ConversationFragment) fragment).getConversation();
 513        } else {
 514            return null;
 515        }
 516    }
 517
 518    public static ConversationFragment get(Activity activity) {
 519        FragmentManager fragmentManager = activity.getFragmentManager();
 520        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 521        if (fragment != null && fragment instanceof ConversationFragment) {
 522            return (ConversationFragment) fragment;
 523        } else {
 524            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 525            return fragment != null && fragment instanceof ConversationFragment ? (ConversationFragment) fragment : null;
 526        }
 527    }
 528
 529    public static Conversation getConversationReliable(Activity activity) {
 530        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 531        if (conversation != null) {
 532            return conversation;
 533        }
 534        return getConversation(activity, R.id.main_fragment);
 535    }
 536
 537    private static boolean scrolledToBottom(AbsListView listView) {
 538        final int count = listView.getCount();
 539        if (count == 0) {
 540            return true;
 541        } else if (listView.getLastVisiblePosition() == count - 1) {
 542            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 543            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 544        } else {
 545            return false;
 546        }
 547    }
 548
 549    private void toggleScrollDownButton() {
 550        toggleScrollDownButton(binding.messagesView);
 551    }
 552
 553    private void toggleScrollDownButton(AbsListView listView) {
 554        if (conversation == null) {
 555            return;
 556        }
 557        if (scrolledToBottom(listView)) {
 558            lastMessageUuid = null;
 559            hideUnreadMessagesCount();
 560        } else {
 561            binding.scrollToBottomButton.setEnabled(true);
 562            binding.scrollToBottomButton.show();
 563            if (lastMessageUuid == null) {
 564                lastMessageUuid = conversation.getLatestMessage().getUuid();
 565            }
 566            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 567                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 568            }
 569        }
 570    }
 571
 572    private int getIndexOf(String uuid, List<Message> messages) {
 573        if (uuid == null) {
 574            return messages.size() - 1;
 575        }
 576        for (int i = 0; i < messages.size(); ++i) {
 577            if (uuid.equals(messages.get(i).getUuid())) {
 578                return i;
 579            } else {
 580                Message next = messages.get(i);
 581                while (next != null && next.wasMergedIntoPrevious()) {
 582                    if (uuid.equals(next.getUuid())) {
 583                        return i;
 584                    }
 585                    next = next.next();
 586                }
 587
 588            }
 589        }
 590        return -1;
 591    }
 592
 593    private ScrollState getScrollPosition() {
 594        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 595        if (listView == null || listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 596            return null;
 597        } else {
 598            final int pos = listView.getFirstVisiblePosition();
 599            final View view = listView.getChildAt(0);
 600            if (view == null) {
 601                return null;
 602            } else {
 603                return new ScrollState(pos, view.getTop());
 604            }
 605        }
 606    }
 607
 608    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 609        if (scrollPosition != null) {
 610
 611            this.lastMessageUuid = lastMessageUuid;
 612            if (lastMessageUuid != null) {
 613                binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 614            }
 615            //TODO maybe this needs a 'post'
 616            this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 617            toggleScrollDownButton();
 618        }
 619    }
 620
 621    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 622        if (conversation == null) {
 623            return;
 624        }
 625        activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 626
 627            @Override
 628            public void success(Message message) {
 629
 630            }
 631
 632            @Override
 633            public void error(int errorCode, Message object) {
 634                //TODO show possible pgp error
 635            }
 636
 637            @Override
 638            public void userInputRequired(PendingIntent pi, Message object) {
 639
 640            }
 641        });
 642    }
 643
 644    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 645        if (conversation == null) {
 646            return;
 647        }
 648        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 649        prepareFileToast.show();
 650        activity.delegateUriPermissionsToService(uri);
 651        activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 652            @Override
 653            public void inform(final String text) {
 654                hidePrepareFileToast(prepareFileToast);
 655                runOnUiThread(() -> activity.replaceToast(text));
 656            }
 657
 658            @Override
 659            public void success(Message message) {
 660                runOnUiThread(() -> activity.hideToast());
 661                hidePrepareFileToast(prepareFileToast);
 662            }
 663
 664            @Override
 665            public void error(final int errorCode, Message message) {
 666                hidePrepareFileToast(prepareFileToast);
 667                runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 668
 669            }
 670
 671            @Override
 672            public void userInputRequired(PendingIntent pi, Message message) {
 673                hidePrepareFileToast(prepareFileToast);
 674            }
 675        });
 676    }
 677
 678    public void attachEditorContentToConversation(Uri uri) {
 679        mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 680        toggleInputMethod();
 681    }
 682
 683    private void attachImageToConversation(Conversation conversation, Uri uri) {
 684        if (conversation == null) {
 685            return;
 686        }
 687        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 688        prepareFileToast.show();
 689        activity.delegateUriPermissionsToService(uri);
 690        activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 691                new UiCallback<Message>() {
 692
 693                    @Override
 694                    public void userInputRequired(PendingIntent pi, Message object) {
 695                        hidePrepareFileToast(prepareFileToast);
 696                    }
 697
 698                    @Override
 699                    public void success(Message message) {
 700                        hidePrepareFileToast(prepareFileToast);
 701                    }
 702
 703                    @Override
 704                    public void error(final int error, Message message) {
 705                        hidePrepareFileToast(prepareFileToast);
 706                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 707                    }
 708                });
 709    }
 710
 711    private void hidePrepareFileToast(final Toast prepareFileToast) {
 712        if (prepareFileToast != null && activity != null) {
 713            activity.runOnUiThread(prepareFileToast::cancel);
 714        }
 715    }
 716
 717    private void sendMessage() {
 718        if (mediaPreviewAdapter.hasAttachments()) {
 719            commitAttachments();
 720            return;
 721        }
 722        final Editable text = this.binding.textinput.getText();
 723        final String body = text == null ? "" : text.toString();
 724        final Conversation conversation = this.conversation;
 725        if (body.length() == 0 || conversation == null) {
 726            return;
 727        }
 728        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 729            return;
 730        }
 731        final Message message;
 732        if (conversation.getCorrectingMessage() == null) {
 733            message = new Message(conversation, body, conversation.getNextEncryption());
 734            Message.configurePrivateMessage(message);
 735        } else {
 736            message = conversation.getCorrectingMessage();
 737            message.setBody(body);
 738            message.putEdited(message.getUuid(), message.getServerMsgId());
 739            message.setServerMsgId(null);
 740            message.setUuid(UUID.randomUUID().toString());
 741        }
 742        switch (conversation.getNextEncryption()) {
 743            case Message.ENCRYPTION_PGP:
 744                sendPgpMessage(message);
 745                break;
 746            default:
 747                sendMessage(message);
 748        }
 749    }
 750
 751    protected boolean trustKeysIfNeeded(int requestCode) {
 752        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 753        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 754        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 755        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 756        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 757        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 758        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 759        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 760        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 761            axolotlService.createSessionsIfNeeded(conversation);
 762            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 763            String[] contacts = new String[targets.size()];
 764            for (int i = 0; i < contacts.length; ++i) {
 765                contacts[i] = targets.get(i).toString();
 766            }
 767            intent.putExtra("contacts", contacts);
 768            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toString());
 769            intent.putExtra("conversation", conversation.getUuid());
 770            startActivityForResult(intent, requestCode);
 771            return true;
 772        } else {
 773            return false;
 774        }
 775    }
 776
 777    public void updateChatMsgHint() {
 778        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 779        if (conversation.getCorrectingMessage() != null) {
 780            this.binding.textInputHint.setVisibility(View.GONE);
 781            this.binding.textinput.setHint(R.string.send_corrected_message);
 782        } else if (multi && conversation.getNextCounterpart() != null) {
 783            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 784            this.binding.textInputHint.setVisibility(View.VISIBLE);
 785            this.binding.textInputHint.setText(getString(
 786                    R.string.send_private_message_to,
 787                    conversation.getNextCounterpart().getResource()));
 788        } else if (multi && !conversation.getMucOptions().participating()) {
 789            this.binding.textInputHint.setVisibility(View.GONE);
 790            this.binding.textinput.setHint(R.string.you_are_not_participating);
 791        } else {
 792            this.binding.textInputHint.setVisibility(View.GONE);
 793            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 794            getActivity().invalidateOptionsMenu();
 795        }
 796    }
 797
 798    public void setupIme() {
 799        this.binding.textinput.refreshIme();
 800    }
 801
 802    private void handleActivityResult(ActivityResult activityResult) {
 803        if (activityResult.resultCode == Activity.RESULT_OK) {
 804            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 805        } else {
 806            handleNegativeActivityResult(activityResult.requestCode);
 807        }
 808    }
 809
 810    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 811        switch (requestCode) {
 812            case REQUEST_TRUST_KEYS_TEXT:
 813                sendMessage();
 814                break;
 815            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 816                commitAttachments();
 817                break;
 818            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 819                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 820                mediaPreviewAdapter.addMediaPreviews(imageUris);
 821                toggleInputMethod();
 822                break;
 823            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 824                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 825                if (takePhotoUri != null) {
 826                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 827                    toggleInputMethod();
 828                } else {
 829                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 830                }
 831                break;
 832            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 833            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 834            case ATTACHMENT_CHOICE_RECORD_VOICE:
 835                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 836                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 837                mediaPreviewAdapter.addMediaPreviews(fileUris);
 838                toggleInputMethod();
 839                break;
 840            case ATTACHMENT_CHOICE_LOCATION:
 841                double latitude = data.getDoubleExtra("latitude", 0);
 842                double longitude = data.getDoubleExtra("longitude", 0);
 843                Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 844                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 845                toggleInputMethod();
 846                break;
 847            case REQUEST_INVITE_TO_CONVERSATION:
 848                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 849                if (invite != null) {
 850                    if (invite.execute(activity)) {
 851                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 852                        activity.mToast.show();
 853                    }
 854                }
 855                break;
 856        }
 857    }
 858
 859    private void commitAttachments() {
 860        if (!hasPermissions(REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 861            return;
 862        }
 863        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 864            return;
 865        }
 866        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 867        final PresenceSelector.OnPresenceSelected callback = () -> {
 868            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 869                final Attachment attachment = i.next();
 870                if (attachment.getType() == Attachment.Type.LOCATION) {
 871                    attachLocationToConversation(conversation, attachment.getUri());
 872                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 873                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 874                    attachImageToConversation(conversation, attachment.getUri());
 875                } else {
 876                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 877                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 878                }
 879            }
 880            mediaPreviewAdapter.notifyDataSetChanged();
 881            toggleInputMethod();
 882        };
 883        if (conversation == null
 884                || conversation.getMode() == Conversation.MODE_MULTI
 885                || Attachment.canBeSendInband(attachments)
 886                || (conversation.getAccount().httpUploadAvailable() && FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
 887            callback.onPresenceSelected();
 888        } else {
 889            activity.selectPresence(conversation, callback);
 890        }
 891    }
 892
 893    public void toggleInputMethod() {
 894        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 895        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 896        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 897        updateSendButton();
 898    }
 899
 900    private void handleNegativeActivityResult(int requestCode) {
 901        switch (requestCode) {
 902            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 903                if (pendingTakePhotoUri.clear()) {
 904                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 905                }
 906                break;
 907        }
 908    }
 909
 910    @Override
 911    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 912        super.onActivityResult(requestCode, resultCode, data);
 913        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 914        if (activity != null && activity.xmppConnectionService != null) {
 915            handleActivityResult(activityResult);
 916        } else {
 917            this.postponedActivityResult.push(activityResult);
 918        }
 919    }
 920
 921    public void unblockConversation(final Blockable conversation) {
 922        activity.xmppConnectionService.sendUnblockRequest(conversation);
 923    }
 924
 925    @Override
 926    public void onAttach(Activity activity) {
 927        super.onAttach(activity);
 928        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 929        if (activity instanceof ConversationsActivity) {
 930            this.activity = (ConversationsActivity) activity;
 931        } else {
 932            throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 933        }
 934    }
 935
 936    @Override
 937    public void onDetach() {
 938        super.onDetach();
 939        this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 940    }
 941
 942    @Override
 943    public void onCreate(Bundle savedInstanceState) {
 944        super.onCreate(savedInstanceState);
 945        setHasOptionsMenu(true);
 946    }
 947
 948    @Override
 949    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 950        menuInflater.inflate(R.menu.fragment_conversation, menu);
 951        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 952        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 953        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 954        final MenuItem menuMute = menu.findItem(R.id.action_mute);
 955        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 956        final MenuItem menuCall = menu.findItem(R.id.action_call);
 957
 958
 959        if (conversation != null) {
 960            if (conversation.getMode() == Conversation.MODE_MULTI) {
 961                menuContactDetails.setVisible(false);
 962                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 963                menuMucDetails.setTitle(conversation.getMucOptions().isPrivateAndNonAnonymous() ? R.string.action_muc_details : R.string.channel_details);
 964                menuCall.setVisible(false);
 965            } else {
 966                menuCall.setVisible(RtpCapability.check(conversation.getContact()) != RtpCapability.Capability.NONE);
 967                menuContactDetails.setVisible(!this.conversation.withSelf());
 968                menuMucDetails.setVisible(false);
 969                final XmppConnectionService service = activity.xmppConnectionService;
 970                menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
 971            }
 972            if (conversation.isMuted()) {
 973                menuMute.setVisible(false);
 974            } else {
 975                menuUnmute.setVisible(false);
 976            }
 977            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
 978            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
 979        }
 980        super.onCreateOptionsMenu(menu, menuInflater);
 981    }
 982
 983    @Override
 984    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 985        this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
 986        binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
 987
 988        binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
 989
 990        binding.textinput.setOnEditorActionListener(mEditorActionListener);
 991        binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
 992
 993        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
 994
 995        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
 996        binding.messagesView.setOnScrollListener(mOnScrollListener);
 997        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
 998        mediaPreviewAdapter = new MediaPreviewAdapter(this);
 999        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1000        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1001        messageListAdapter.setOnContactPictureClicked(this);
1002        messageListAdapter.setOnContactPictureLongClicked(this);
1003        messageListAdapter.setOnQuoteListener(this::quoteText);
1004        binding.messagesView.setAdapter(messageListAdapter);
1005
1006        registerForContextMenu(binding.messagesView);
1007
1008        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1009            this.binding.textinput.setCustomInsertionActionModeCallback(new EditMessageActionModeCallback(this.binding.textinput));
1010        }
1011
1012        return binding.getRoot();
1013    }
1014
1015    private void quoteText(String text) {
1016        if (binding.textinput.isEnabled()) {
1017            binding.textinput.insertAsQuote(text);
1018            binding.textinput.requestFocus();
1019            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1020            if (inputMethodManager != null) {
1021                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1022            }
1023        }
1024    }
1025
1026    private void quoteMessage(Message message) {
1027        quoteText(MessageUtils.prepareQuote(message));
1028    }
1029
1030    @Override
1031    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1032        synchronized (this.messageList) {
1033            super.onCreateContextMenu(menu, v, menuInfo);
1034            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1035            this.selectedMessage = this.messageList.get(acmi.position);
1036            populateContextMenu(menu);
1037        }
1038    }
1039
1040    private void populateContextMenu(ContextMenu menu) {
1041        final Message m = this.selectedMessage;
1042        final Transferable t = m.getTransferable();
1043        Message relevantForCorrection = m;
1044        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1045            relevantForCorrection = relevantForCorrection.next();
1046        }
1047        if (m.getType() != Message.TYPE_STATUS) {
1048
1049            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1050                return;
1051            }
1052
1053            if (m.getStatus() == Message.STATUS_RECEIVED && t != null && (t.getStatus() == Transferable.STATUS_CANCELLED || t.getStatus() == Transferable.STATUS_FAILED)) {
1054                return;
1055            }
1056
1057            final boolean deleted = m.isDeleted();
1058            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1059                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1060            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleFileTransferConnection || t instanceof HttpDownloadConnection);
1061            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1062            menu.setHeaderTitle(R.string.message_options);
1063            MenuItem openWith = menu.findItem(R.id.open_with);
1064            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1065            MenuItem copyLink = menu.findItem(R.id.copy_link);
1066            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1067            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1068            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1069            MenuItem shareWith = menu.findItem(R.id.share_with);
1070            MenuItem sendAgain = menu.findItem(R.id.send_again);
1071            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1072            MenuItem downloadFile = menu.findItem(R.id.download_file);
1073            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1074            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1075            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1076            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1077            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1078                copyMessage.setVisible(true);
1079                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1080                String body = m.getMergedBody().toString();
1081                if (ShareUtil.containsXmppUri(body)) {
1082                    copyLink.setTitle(R.string.copy_jabber_id);
1083                    copyLink.setVisible(true);
1084                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1085                    copyLink.setVisible(true);
1086                }
1087            }
1088            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1089                retryDecryption.setVisible(true);
1090            }
1091            if (!showError
1092                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1093                    && !m.isGeoUri()
1094                    && relevantForCorrection.isLastCorrectableMessage()
1095                    && m.getConversation() instanceof Conversation) {
1096                correctMessage.setVisible(true);
1097            }
1098            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1099                shareWith.setVisible(true);
1100            }
1101            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1102                sendAgain.setVisible(true);
1103            }
1104            if (m.hasFileOnRemoteHost()
1105                    || m.isGeoUri()
1106                    || m.treatAsDownloadable()
1107                    || t instanceof HttpDownloadConnection) {
1108                copyUrl.setVisible(true);
1109            }
1110            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1111                downloadFile.setVisible(true);
1112                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1113            }
1114            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1115                    || m.getStatus() == Message.STATUS_UNSEND
1116                    || m.getStatus() == Message.STATUS_OFFERED;
1117            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1118            if (cancelable) {
1119                cancelTransmission.setVisible(true);
1120            }
1121            if (m.isFileOrImage() && !deleted && !cancelable) {
1122                String path = m.getRelativeFilePath();
1123                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1124                    deleteFile.setVisible(true);
1125                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1126                }
1127            }
1128            if (showError) {
1129                showErrorMessage.setVisible(true);
1130            }
1131            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1132            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m)) || (mime != null && mime.startsWith("audio/"))) {
1133                openWith.setVisible(true);
1134            }
1135        }
1136    }
1137
1138    @Override
1139    public boolean onContextItemSelected(MenuItem item) {
1140        switch (item.getItemId()) {
1141            case R.id.share_with:
1142                ShareUtil.share(activity, selectedMessage);
1143                return true;
1144            case R.id.correct_message:
1145                correctMessage(selectedMessage);
1146                return true;
1147            case R.id.copy_message:
1148                ShareUtil.copyToClipboard(activity, selectedMessage);
1149                return true;
1150            case R.id.copy_link:
1151                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1152                return true;
1153            case R.id.quote_message:
1154                quoteMessage(selectedMessage);
1155                return true;
1156            case R.id.send_again:
1157                resendMessage(selectedMessage);
1158                return true;
1159            case R.id.copy_url:
1160                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1161                return true;
1162            case R.id.download_file:
1163                startDownloadable(selectedMessage);
1164                return true;
1165            case R.id.cancel_transmission:
1166                cancelTransmission(selectedMessage);
1167                return true;
1168            case R.id.retry_decryption:
1169                retryDecryption(selectedMessage);
1170                return true;
1171            case R.id.delete_file:
1172                deleteFile(selectedMessage);
1173                return true;
1174            case R.id.show_error_message:
1175                showErrorMessage(selectedMessage);
1176                return true;
1177            case R.id.open_with:
1178                openWith(selectedMessage);
1179                return true;
1180            default:
1181                return super.onContextItemSelected(item);
1182        }
1183    }
1184
1185    @Override
1186    public boolean onOptionsItemSelected(final MenuItem item) {
1187        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1188            return false;
1189        } else if (conversation == null) {
1190            return super.onOptionsItemSelected(item);
1191        }
1192        switch (item.getItemId()) {
1193            case R.id.encryption_choice_axolotl:
1194            case R.id.encryption_choice_pgp:
1195            case R.id.encryption_choice_none:
1196                handleEncryptionSelection(item);
1197                break;
1198            case R.id.attach_choose_picture:
1199            case R.id.attach_take_picture:
1200            case R.id.attach_record_video:
1201            case R.id.attach_choose_file:
1202            case R.id.attach_record_voice:
1203            case R.id.attach_location:
1204                handleAttachmentSelection(item);
1205                break;
1206            case R.id.action_archive:
1207                activity.xmppConnectionService.archiveConversation(conversation);
1208                break;
1209            case R.id.action_contact_details:
1210                activity.switchToContactDetails(conversation.getContact());
1211                break;
1212            case R.id.action_muc_details:
1213                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1214                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1215                intent.putExtra("uuid", conversation.getUuid());
1216                startActivity(intent);
1217                break;
1218            case R.id.action_invite:
1219                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1220                break;
1221            case R.id.action_clear_history:
1222                clearHistoryDialog(conversation);
1223                break;
1224            case R.id.action_mute:
1225                muteConversationDialog(conversation);
1226                break;
1227            case R.id.action_unmute:
1228                unmuteConversation(conversation);
1229                break;
1230            case R.id.action_block:
1231            case R.id.action_unblock:
1232                final Activity activity = getActivity();
1233                if (activity instanceof XmppActivity) {
1234                    BlockContactDialog.show((XmppActivity) activity, conversation);
1235                }
1236                break;
1237            case R.id.action_call:
1238                checkPermissionAndTriggerRtpSession();
1239                break;
1240            default:
1241                break;
1242        }
1243        return super.onOptionsItemSelected(item);
1244    }
1245
1246    private void checkPermissionAndTriggerRtpSession() {
1247        if (hasPermissions(REQUEST_START_AUDIO_CALL, Manifest.permission.RECORD_AUDIO)) {
1248            triggerRtpSession();
1249        }
1250    }
1251
1252    private void triggerRtpSession() {
1253        final Contact contact = conversation.getContact();
1254        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1255        intent.setAction(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1256        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, contact.getAccount().getJid().toEscapedString());
1257        intent.putExtra(RtpSessionActivity.EXTRA_WITH, contact.getJid().asBareJid().toEscapedString());
1258        startActivity(intent);
1259    }
1260
1261    private void handleAttachmentSelection(MenuItem item) {
1262        switch (item.getItemId()) {
1263            case R.id.attach_choose_picture:
1264                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1265                break;
1266            case R.id.attach_take_picture:
1267                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1268                break;
1269            case R.id.attach_record_video:
1270                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1271                break;
1272            case R.id.attach_choose_file:
1273                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1274                break;
1275            case R.id.attach_record_voice:
1276                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1277                break;
1278            case R.id.attach_location:
1279                attachFile(ATTACHMENT_CHOICE_LOCATION);
1280                break;
1281        }
1282    }
1283
1284    private void handleEncryptionSelection(MenuItem item) {
1285        if (conversation == null) {
1286            return;
1287        }
1288        final boolean updated;
1289        switch (item.getItemId()) {
1290            case R.id.encryption_choice_none:
1291                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1292                item.setChecked(true);
1293                break;
1294            case R.id.encryption_choice_pgp:
1295                if (activity.hasPgp()) {
1296                    if (conversation.getAccount().getPgpSignature() != null) {
1297                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1298                        item.setChecked(true);
1299                    } else {
1300                        updated = false;
1301                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1302                    }
1303                } else {
1304                    activity.showInstallPgpDialog();
1305                    updated = false;
1306                }
1307                break;
1308            case R.id.encryption_choice_axolotl:
1309                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1310                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1311                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1312                item.setChecked(true);
1313                break;
1314            default:
1315                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1316                break;
1317        }
1318        if (updated) {
1319            activity.xmppConnectionService.updateConversation(conversation);
1320        }
1321        updateChatMsgHint();
1322        getActivity().invalidateOptionsMenu();
1323        activity.refreshUi();
1324    }
1325
1326    public void attachFile(final int attachmentChoice) {
1327        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1328            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1329                return;
1330            }
1331        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1332            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1333                return;
1334            }
1335        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1336            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1337                return;
1338            }
1339        }
1340        try {
1341            activity.getPreferences().edit()
1342                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1343                    .apply();
1344        } catch (IllegalArgumentException e) {
1345            //just do not save
1346        }
1347        final int encryption = conversation.getNextEncryption();
1348        final int mode = conversation.getMode();
1349        if (encryption == Message.ENCRYPTION_PGP) {
1350            if (activity.hasPgp()) {
1351                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1352                    activity.xmppConnectionService.getPgpEngine().hasKey(
1353                            conversation.getContact(),
1354                            new UiCallback<Contact>() {
1355
1356                                @Override
1357                                public void userInputRequired(PendingIntent pi, Contact contact) {
1358                                    startPendingIntent(pi, attachmentChoice);
1359                                }
1360
1361                                @Override
1362                                public void success(Contact contact) {
1363                                    invokeAttachFileIntent(attachmentChoice);
1364                                }
1365
1366                                @Override
1367                                public void error(int error, Contact contact) {
1368                                    activity.replaceToast(getString(error));
1369                                }
1370                            });
1371                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1372                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1373                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1374                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1375                        warning.show();
1376                    }
1377                    invokeAttachFileIntent(attachmentChoice);
1378                } else {
1379                    showNoPGPKeyDialog(false, (dialog, which) -> {
1380                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1381                        activity.xmppConnectionService.updateConversation(conversation);
1382                        invokeAttachFileIntent(attachmentChoice);
1383                    });
1384                }
1385            } else {
1386                activity.showInstallPgpDialog();
1387            }
1388        } else {
1389            invokeAttachFileIntent(attachmentChoice);
1390        }
1391    }
1392
1393    @Override
1394    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1395        if (grantResults.length > 0) {
1396            if (allGranted(grantResults)) {
1397                switch (requestCode) {
1398                    case REQUEST_START_DOWNLOAD:
1399                        if (this.mPendingDownloadableMessage != null) {
1400                            startDownloadable(this.mPendingDownloadableMessage);
1401                        }
1402                        break;
1403                    case REQUEST_ADD_EDITOR_CONTENT:
1404                        if (this.mPendingEditorContent != null) {
1405                            attachEditorContentToConversation(this.mPendingEditorContent);
1406                        }
1407                        break;
1408                    case REQUEST_COMMIT_ATTACHMENTS:
1409                        commitAttachments();
1410                        break;
1411                    case REQUEST_START_AUDIO_CALL:
1412                        triggerRtpSession();
1413                        break;
1414                    default:
1415                        attachFile(requestCode);
1416                        break;
1417                }
1418            } else {
1419                @StringRes int res;
1420                String firstDenied = getFirstDenied(grantResults, permissions);
1421                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1422                    res = R.string.no_microphone_permission;
1423                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1424                    res = R.string.no_camera_permission;
1425                } else {
1426                    res = R.string.no_storage_permission;
1427                }
1428                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1429            }
1430        }
1431        if (writeGranted(grantResults, permissions)) {
1432            if (activity != null && activity.xmppConnectionService != null) {
1433                activity.xmppConnectionService.restartFileObserver();
1434            }
1435            refresh();
1436        }
1437    }
1438
1439    public void startDownloadable(Message message) {
1440        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1441            this.mPendingDownloadableMessage = message;
1442            return;
1443        }
1444        Transferable transferable = message.getTransferable();
1445        if (transferable != null) {
1446            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1447                createNewConnection(message);
1448                return;
1449            }
1450            if (!transferable.start()) {
1451                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1452                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1453            }
1454        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost() || MessageUtils.unInitiatedButKnownSize(message)) {
1455            createNewConnection(message);
1456        } else {
1457            Log.d(Config.LOGTAG, message.getConversation().getAccount() + ": unable to start downloadable");
1458        }
1459    }
1460
1461    private void createNewConnection(final Message message) {
1462        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1463            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1464            return;
1465        }
1466        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1467    }
1468
1469    @SuppressLint("InflateParams")
1470    protected void clearHistoryDialog(final Conversation conversation) {
1471        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1472        builder.setTitle(getString(R.string.clear_conversation_history));
1473        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1474        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1475        builder.setView(dialogView);
1476        builder.setNegativeButton(getString(R.string.cancel), null);
1477        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1478            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1479            if (endConversationCheckBox.isChecked()) {
1480                this.activity.xmppConnectionService.archiveConversation(conversation);
1481                this.activity.onConversationArchived(conversation);
1482            } else {
1483                activity.onConversationsListItemUpdated();
1484                refresh();
1485            }
1486        });
1487        builder.create().show();
1488    }
1489
1490    protected void muteConversationDialog(final Conversation conversation) {
1491        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1492        builder.setTitle(R.string.disable_notifications);
1493        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1494        final CharSequence[] labels = new CharSequence[durations.length];
1495        for (int i = 0; i < durations.length; ++i) {
1496            if (durations[i] == -1) {
1497                labels[i] = getString(R.string.until_further_notice);
1498            } else {
1499                labels[i] = TimeframeUtils.resolve(activity, 1000L * durations[i]);
1500            }
1501        }
1502        builder.setItems(labels, (dialog, which) -> {
1503            final long till;
1504            if (durations[which] == -1) {
1505                till = Long.MAX_VALUE;
1506            } else {
1507                till = System.currentTimeMillis() + (durations[which] * 1000);
1508            }
1509            conversation.setMutedTill(till);
1510            activity.xmppConnectionService.updateConversation(conversation);
1511            activity.onConversationsListItemUpdated();
1512            refresh();
1513            getActivity().invalidateOptionsMenu();
1514        });
1515        builder.create().show();
1516    }
1517
1518    private boolean hasPermissions(int requestCode, String... permissions) {
1519        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1520            final List<String> missingPermissions = new ArrayList<>();
1521            for (String permission : permissions) {
1522                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1523                    continue;
1524                }
1525                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1526                    missingPermissions.add(permission);
1527                }
1528            }
1529            if (missingPermissions.size() == 0) {
1530                return true;
1531            } else {
1532                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1533                return false;
1534            }
1535        } else {
1536            return true;
1537        }
1538    }
1539
1540    public void unmuteConversation(final Conversation conversation) {
1541        conversation.setMutedTill(0);
1542        this.activity.xmppConnectionService.updateConversation(conversation);
1543        this.activity.onConversationsListItemUpdated();
1544        refresh();
1545        getActivity().invalidateOptionsMenu();
1546    }
1547
1548
1549    protected void invokeAttachFileIntent(final int attachmentChoice) {
1550        Intent intent = new Intent();
1551        boolean chooser = false;
1552        switch (attachmentChoice) {
1553            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1554                intent.setAction(Intent.ACTION_GET_CONTENT);
1555                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1556                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1557                }
1558                intent.setType("image/*");
1559                chooser = true;
1560                break;
1561            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1562                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1563                break;
1564            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1565                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1566                pendingTakePhotoUri.push(uri);
1567                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1568                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1569                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1570                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1571                break;
1572            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1573                chooser = true;
1574                intent.setType("*/*");
1575                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1576                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1577                }
1578                intent.addCategory(Intent.CATEGORY_OPENABLE);
1579                intent.setAction(Intent.ACTION_GET_CONTENT);
1580                break;
1581            case ATTACHMENT_CHOICE_RECORD_VOICE:
1582                intent = new Intent(getActivity(), RecordingActivity.class);
1583                break;
1584            case ATTACHMENT_CHOICE_LOCATION:
1585                intent = GeoHelper.getFetchIntent(activity);
1586                break;
1587        }
1588        final Context context = getActivity();
1589        if (context != null && intent.resolveActivity(context.getPackageManager()) != null) {
1590            if (chooser) {
1591                startActivityForResult(
1592                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
1593                        attachmentChoice);
1594            } else {
1595                startActivityForResult(intent, attachmentChoice);
1596            }
1597        }
1598    }
1599
1600    @Override
1601    public void onResume() {
1602        super.onResume();
1603        binding.messagesView.post(this::fireReadEvent);
1604    }
1605
1606    private void fireReadEvent() {
1607        if (activity != null && this.conversation != null) {
1608            String uuid = getLastVisibleMessageUuid();
1609            if (uuid != null) {
1610                activity.onConversationRead(this.conversation, uuid);
1611            }
1612        }
1613    }
1614
1615    private String getLastVisibleMessageUuid() {
1616        if (binding == null) {
1617            return null;
1618        }
1619        synchronized (this.messageList) {
1620            int pos = binding.messagesView.getLastVisiblePosition();
1621            if (pos >= 0) {
1622                Message message = null;
1623                for (int i = pos; i >= 0; --i) {
1624                    try {
1625                        message = (Message) binding.messagesView.getItemAtPosition(i);
1626                    } catch (IndexOutOfBoundsException e) {
1627                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1628                        continue;
1629                    }
1630                    if (message.getType() != Message.TYPE_STATUS) {
1631                        break;
1632                    }
1633                }
1634                if (message != null) {
1635                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1636                        message = message.next();
1637                    }
1638                    return message.getUuid();
1639                }
1640            }
1641        }
1642        return null;
1643    }
1644
1645    private void openWith(final Message message) {
1646        if (message.isGeoUri()) {
1647            GeoHelper.view(getActivity(), message);
1648        } else {
1649            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1650            ViewUtil.view(activity, file);
1651        }
1652    }
1653
1654    private void showErrorMessage(final Message message) {
1655        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1656        builder.setTitle(R.string.error_message);
1657        final String errorMessage = message.getErrorMessage();
1658        final String[] errorMessageParts = errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
1659        final String displayError;
1660        if (errorMessageParts.length == 2) {
1661            displayError = errorMessageParts[1];
1662        } else {
1663            displayError = errorMessage;
1664        }
1665        builder.setMessage(displayError);
1666        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1667            activity.copyTextToClipboard(displayError, R.string.error_message);
1668            Toast.makeText(activity, R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1669        });
1670        builder.setPositiveButton(R.string.confirm, null);
1671        builder.create().show();
1672    }
1673
1674
1675    private void deleteFile(final Message message) {
1676        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1677        builder.setNegativeButton(R.string.cancel, null);
1678        builder.setTitle(R.string.delete_file_dialog);
1679        builder.setMessage(R.string.delete_file_dialog_msg);
1680        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1681            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1682                message.setDeleted(true);
1683                activity.xmppConnectionService.evictPreview(message.getUuid());
1684                activity.xmppConnectionService.updateMessage(message, false);
1685                activity.onConversationsListItemUpdated();
1686                refresh();
1687            }
1688        });
1689        builder.create().show();
1690
1691    }
1692
1693    private void resendMessage(final Message message) {
1694        if (message.isFileOrImage()) {
1695            if (!(message.getConversation() instanceof Conversation)) {
1696                return;
1697            }
1698            final Conversation conversation = (Conversation) message.getConversation();
1699            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1700            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
1701                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1702                if (!message.hasFileOnRemoteHost()
1703                        && xmppConnection != null
1704                        && conversation.getMode() == Conversational.MODE_SINGLE
1705                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1706                    activity.selectPresence(conversation, () -> {
1707                        message.setCounterpart(conversation.getNextCounterpart());
1708                        activity.xmppConnectionService.resendFailedMessages(message);
1709                        new Handler().post(() -> {
1710                            int size = messageList.size();
1711                            this.binding.messagesView.setSelection(size - 1);
1712                        });
1713                    });
1714                    return;
1715                }
1716            } else if (!Compatibility.hasStoragePermission(getActivity())) {
1717                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
1718                return;
1719            } else {
1720                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1721                message.setDeleted(true);
1722                activity.xmppConnectionService.updateMessage(message, false);
1723                activity.onConversationsListItemUpdated();
1724                refresh();
1725                return;
1726            }
1727        }
1728        activity.xmppConnectionService.resendFailedMessages(message);
1729        new Handler().post(() -> {
1730            int size = messageList.size();
1731            this.binding.messagesView.setSelection(size - 1);
1732        });
1733    }
1734
1735    private void cancelTransmission(Message message) {
1736        Transferable transferable = message.getTransferable();
1737        if (transferable != null) {
1738            transferable.cancel();
1739        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1740            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1741        }
1742    }
1743
1744    private void retryDecryption(Message message) {
1745        message.setEncryption(Message.ENCRYPTION_PGP);
1746        activity.onConversationsListItemUpdated();
1747        refresh();
1748        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1749    }
1750
1751    public void privateMessageWith(final Jid counterpart) {
1752        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
1753            activity.xmppConnectionService.sendChatState(conversation);
1754        }
1755        this.binding.textinput.setText("");
1756        this.conversation.setNextCounterpart(counterpart);
1757        updateChatMsgHint();
1758        updateSendButton();
1759        updateEditablity();
1760    }
1761
1762    private void correctMessage(Message message) {
1763        while (message.mergeable(message.next())) {
1764            message = message.next();
1765        }
1766        this.conversation.setCorrectingMessage(message);
1767        final Editable editable = binding.textinput.getText();
1768        this.conversation.setDraftMessage(editable.toString());
1769        this.binding.textinput.setText("");
1770        this.binding.textinput.append(message.getBody());
1771
1772    }
1773
1774    private void highlightInConference(String nick) {
1775        final Editable editable = this.binding.textinput.getText();
1776        String oldString = editable.toString().trim();
1777        final int pos = this.binding.textinput.getSelectionStart();
1778        if (oldString.isEmpty() || pos == 0) {
1779            editable.insert(0, nick + ": ");
1780        } else {
1781            final char before = editable.charAt(pos - 1);
1782            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1783            if (before == '\n') {
1784                editable.insert(pos, nick + ": ");
1785            } else {
1786                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1787                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1788                        editable.insert(pos - 2, ", " + nick);
1789                        return;
1790                    }
1791                }
1792                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1793                if (Character.isWhitespace(after)) {
1794                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1795                }
1796            }
1797        }
1798    }
1799
1800    @Override
1801    public void startActivityForResult(Intent intent, int requestCode) {
1802        final Activity activity = getActivity();
1803        if (activity instanceof ConversationsActivity) {
1804            ((ConversationsActivity) activity).clearPendingViewIntent();
1805        }
1806        super.startActivityForResult(intent, requestCode);
1807    }
1808
1809    @Override
1810    public void onSaveInstanceState(Bundle outState) {
1811        super.onSaveInstanceState(outState);
1812        if (conversation != null) {
1813            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1814            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1815            final Uri uri = pendingTakePhotoUri.peek();
1816            if (uri != null) {
1817                outState.putString(STATE_PHOTO_URI, uri.toString());
1818            }
1819            final ScrollState scrollState = getScrollPosition();
1820            if (scrollState != null) {
1821                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1822            }
1823            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1824            if (attachments.size() > 0) {
1825                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1826            }
1827        }
1828    }
1829
1830    @Override
1831    public void onActivityCreated(Bundle savedInstanceState) {
1832        super.onActivityCreated(savedInstanceState);
1833        if (savedInstanceState == null) {
1834            return;
1835        }
1836        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1837        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1838        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1839        if (uuid != null) {
1840            QuickLoader.set(uuid);
1841            this.pendingConversationsUuid.push(uuid);
1842            if (attachments != null && attachments.size() > 0) {
1843                this.pendingMediaPreviews.push(attachments);
1844            }
1845            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1846            if (takePhotoUri != null) {
1847                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1848            }
1849            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1850        }
1851    }
1852
1853    @Override
1854    public void onStart() {
1855        super.onStart();
1856        if (this.reInitRequiredOnStart && this.conversation != null) {
1857            final Bundle extras = pendingExtras.pop();
1858            reInit(this.conversation, extras != null);
1859            if (extras != null) {
1860                processExtras(extras);
1861            }
1862        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
1863            final String uuid = pendingConversationsUuid.pop();
1864            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
1865            if (uuid != null) {
1866                findAndReInitByUuidOrArchive(uuid);
1867            }
1868        }
1869    }
1870
1871    @Override
1872    public void onStop() {
1873        super.onStop();
1874        final Activity activity = getActivity();
1875        messageListAdapter.unregisterListenerInAudioPlayer();
1876        if (activity == null || !activity.isChangingConfigurations()) {
1877            hideSoftKeyboard(activity);
1878            messageListAdapter.stopAudioPlayer();
1879        }
1880        if (this.conversation != null) {
1881            final String msg = this.binding.textinput.getText().toString();
1882            storeNextMessage(msg);
1883            updateChatState(this.conversation, msg);
1884            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
1885        }
1886        this.reInitRequiredOnStart = true;
1887    }
1888
1889    private void updateChatState(final Conversation conversation, final String msg) {
1890        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
1891        Account.State status = conversation.getAccount().getStatus();
1892        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
1893            activity.xmppConnectionService.sendChatState(conversation);
1894        }
1895    }
1896
1897    private void saveMessageDraftStopAudioPlayer() {
1898        final Conversation previousConversation = this.conversation;
1899        if (this.activity == null || this.binding == null || previousConversation == null) {
1900            return;
1901        }
1902        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
1903        final String msg = this.binding.textinput.getText().toString();
1904        storeNextMessage(msg);
1905        updateChatState(this.conversation, msg);
1906        messageListAdapter.stopAudioPlayer();
1907        mediaPreviewAdapter.clearPreviews();
1908        toggleInputMethod();
1909    }
1910
1911    public void reInit(Conversation conversation, Bundle extras) {
1912        QuickLoader.set(conversation.getUuid());
1913        this.saveMessageDraftStopAudioPlayer();
1914        this.clearPending();
1915        if (this.reInit(conversation, extras != null)) {
1916            if (extras != null) {
1917                processExtras(extras);
1918            }
1919            this.reInitRequiredOnStart = false;
1920        } else {
1921            this.reInitRequiredOnStart = true;
1922            pendingExtras.push(extras);
1923        }
1924        resetUnreadMessagesCount();
1925    }
1926
1927    private void reInit(Conversation conversation) {
1928        reInit(conversation, false);
1929    }
1930
1931    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
1932        if (conversation == null) {
1933            return false;
1934        }
1935        this.conversation = conversation;
1936        //once we set the conversation all is good and it will automatically do the right thing in onStart()
1937        if (this.activity == null || this.binding == null) {
1938            return false;
1939        }
1940
1941        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
1942            activity.onConversationArchived(this.conversation);
1943            return false;
1944        }
1945
1946        stopScrolling();
1947        Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
1948
1949        if (this.conversation.isRead() && hasExtras) {
1950            Log.d(Config.LOGTAG, "trimming conversation");
1951            this.conversation.trim();
1952        }
1953
1954        setupIme();
1955
1956        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
1957
1958        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
1959        this.binding.textinput.setKeyboardListener(null);
1960        this.binding.textinput.setText("");
1961        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
1962        if (participating) {
1963            this.binding.textinput.append(this.conversation.getNextMessage());
1964        }
1965        this.binding.textinput.setKeyboardListener(this);
1966        messageListAdapter.updatePreferences();
1967        refresh(false);
1968        this.conversation.messagesLoaded.set(true);
1969        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
1970
1971        if (hasExtras || scrolledToBottomAndNoPending) {
1972            resetUnreadMessagesCount();
1973            synchronized (this.messageList) {
1974                Log.d(Config.LOGTAG, "jump to first unread message");
1975                final Message first = conversation.getFirstUnreadMessage();
1976                final int bottom = Math.max(0, this.messageList.size() - 1);
1977                final int pos;
1978                final boolean jumpToBottom;
1979                if (first == null) {
1980                    pos = bottom;
1981                    jumpToBottom = true;
1982                } else {
1983                    int i = getIndexOf(first.getUuid(), this.messageList);
1984                    pos = i < 0 ? bottom : i;
1985                    jumpToBottom = false;
1986                }
1987                setSelection(pos, jumpToBottom);
1988            }
1989        }
1990
1991
1992        this.binding.messagesView.post(this::fireReadEvent);
1993        //TODO if we only do this when this fragment is running on main it won't *bing* in tablet layout which might be unnecessary since we can *see* it
1994        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
1995        return true;
1996    }
1997
1998    private void resetUnreadMessagesCount() {
1999        lastMessageUuid = null;
2000        hideUnreadMessagesCount();
2001    }
2002
2003    private void hideUnreadMessagesCount() {
2004        if (this.binding == null) {
2005            return;
2006        }
2007        this.binding.scrollToBottomButton.setEnabled(false);
2008        this.binding.scrollToBottomButton.hide();
2009        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2010    }
2011
2012    private void setSelection(int pos, boolean jumpToBottom) {
2013        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2014        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2015        this.binding.messagesView.post(this::fireReadEvent);
2016    }
2017
2018
2019    private boolean scrolledToBottom() {
2020        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2021    }
2022
2023    private void processExtras(Bundle extras) {
2024        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2025        final String text = extras.getString(Intent.EXTRA_TEXT);
2026        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2027        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2028        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2029        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2030        final List<Uri> uris = extractUris(extras);
2031        if (uris != null && uris.size() > 0) {
2032            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2033                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2034            } else {
2035                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2036                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2037            }
2038            toggleInputMethod();
2039            return;
2040        }
2041        if (nick != null) {
2042            if (pm) {
2043                Jid jid = conversation.getJid();
2044                try {
2045                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2046                    privateMessageWith(next);
2047                } catch (final IllegalArgumentException ignored) {
2048                    //do nothing
2049                }
2050            } else {
2051                final MucOptions mucOptions = conversation.getMucOptions();
2052                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2053                    highlightInConference(nick);
2054                }
2055            }
2056        } else {
2057            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2058                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2059                toggleInputMethod();
2060                return;
2061            } else if (text != null && asQuote) {
2062                quoteText(text);
2063            } else {
2064                appendText(text, doNotAppend);
2065            }
2066        }
2067        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2068        if (message != null) {
2069            startDownloadable(message);
2070        }
2071    }
2072
2073    private List<Uri> extractUris(Bundle extras) {
2074        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2075        if (uris != null) {
2076            return uris;
2077        }
2078        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2079        if (uri != null) {
2080            return Collections.singletonList(uri);
2081        } else {
2082            return null;
2083        }
2084    }
2085
2086    private List<Uri> cleanUris(List<Uri> uris) {
2087        Iterator<Uri> iterator = uris.iterator();
2088        while (iterator.hasNext()) {
2089            final Uri uri = iterator.next();
2090            if (FileBackend.weOwnFile(getActivity(), uri)) {
2091                iterator.remove();
2092                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2093            }
2094        }
2095        return uris;
2096    }
2097
2098    private boolean showBlockSubmenu(View view) {
2099        final Jid jid = conversation.getJid();
2100        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2101        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2102        popupMenu.inflate(R.menu.block);
2103        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2104        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2105        popupMenu.setOnMenuItemClickListener(menuItem -> {
2106            Blockable blockable;
2107            switch (menuItem.getItemId()) {
2108                case R.id.reject:
2109                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2110                    updateSnackBar(conversation);
2111                    return true;
2112                case R.id.block_domain:
2113                    blockable = conversation.getAccount().getRoster().getContact(Jid.ofDomain(jid.getDomain()));
2114                    break;
2115                default:
2116                    blockable = conversation;
2117            }
2118            BlockContactDialog.show(activity, blockable);
2119            return true;
2120        });
2121        popupMenu.show();
2122        return true;
2123    }
2124
2125    private void updateSnackBar(final Conversation conversation) {
2126        final Account account = conversation.getAccount();
2127        final XmppConnection connection = account.getXmppConnection();
2128        final int mode = conversation.getMode();
2129        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2130        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2131            return;
2132        }
2133        if (account.getStatus() == Account.State.DISABLED) {
2134            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2135        } else if (conversation.isBlocked()) {
2136            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2137        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2138            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2139        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2140            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2141        } else if (mode == Conversation.MODE_MULTI
2142                && !conversation.getMucOptions().online()
2143                && account.getStatus() == Account.State.ONLINE) {
2144            switch (conversation.getMucOptions().getError()) {
2145                case NICK_IN_USE:
2146                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2147                    break;
2148                case NO_RESPONSE:
2149                    showSnackbar(R.string.joining_conference, 0, null);
2150                    break;
2151                case SERVER_NOT_FOUND:
2152                    if (conversation.receivedMessagesCount() > 0) {
2153                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2154                    } else {
2155                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2156                    }
2157                    break;
2158                case REMOTE_SERVER_TIMEOUT:
2159                    if (conversation.receivedMessagesCount() > 0) {
2160                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2161                    } else {
2162                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2163                    }
2164                    break;
2165                case PASSWORD_REQUIRED:
2166                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2167                    break;
2168                case BANNED:
2169                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2170                    break;
2171                case MEMBERS_ONLY:
2172                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2173                    break;
2174                case RESOURCE_CONSTRAINT:
2175                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2176                    break;
2177                case KICKED:
2178                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2179                    break;
2180                case UNKNOWN:
2181                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2182                    break;
2183                case INVALID_NICK:
2184                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2185                case SHUTDOWN:
2186                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2187                    break;
2188                case DESTROYED:
2189                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2190                    break;
2191                case NON_ANONYMOUS:
2192                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2193                    break;
2194                default:
2195                    hideSnackbar();
2196                    break;
2197            }
2198        } else if (account.hasPendingPgpIntent(conversation)) {
2199            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2200        } else if (connection != null
2201                && connection.getFeatures().blocking()
2202                && conversation.countMessages() != 0
2203                && !conversation.isBlocked()
2204                && conversation.isWithStranger()) {
2205            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2206        } else {
2207            hideSnackbar();
2208        }
2209    }
2210
2211    @Override
2212    public void refresh() {
2213        if (this.binding == null) {
2214            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2215            return;
2216        }
2217        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2218            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2219                activity.onConversationArchived(this.conversation);
2220                return;
2221            }
2222        }
2223        this.refresh(true);
2224    }
2225
2226    private void refresh(boolean notifyConversationRead) {
2227        synchronized (this.messageList) {
2228            if (this.conversation != null) {
2229                conversation.populateWithMessages(this.messageList);
2230                updateSnackBar(conversation);
2231                updateStatusMessages();
2232                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2233                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2234                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2235                }
2236                this.messageListAdapter.notifyDataSetChanged();
2237                updateChatMsgHint();
2238                if (notifyConversationRead && activity != null) {
2239                    binding.messagesView.post(this::fireReadEvent);
2240                }
2241                updateSendButton();
2242                updateEditablity();
2243                activity.invalidateOptionsMenu();
2244            }
2245        }
2246    }
2247
2248    protected void messageSent() {
2249        mSendingPgpMessage.set(false);
2250        this.binding.textinput.setText("");
2251        if (conversation.setCorrectingMessage(null)) {
2252            this.binding.textinput.append(conversation.getDraftMessage());
2253            conversation.setDraftMessage(null);
2254        }
2255        storeNextMessage();
2256        updateChatMsgHint();
2257        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2258        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2259        if (prefScrollToBottom || scrolledToBottom()) {
2260            new Handler().post(() -> {
2261                int size = messageList.size();
2262                this.binding.messagesView.setSelection(size - 1);
2263            });
2264        }
2265    }
2266
2267    private boolean storeNextMessage() {
2268        return storeNextMessage(this.binding.textinput.getText().toString());
2269    }
2270
2271    private boolean storeNextMessage(String msg) {
2272        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2273        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2274            this.activity.xmppConnectionService.updateConversation(this.conversation);
2275            return true;
2276        }
2277        return false;
2278    }
2279
2280    public void doneSendingPgpMessage() {
2281        mSendingPgpMessage.set(false);
2282    }
2283
2284    public long getMaxHttpUploadSize(Conversation conversation) {
2285        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2286        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2287    }
2288
2289    private void updateEditablity() {
2290        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2291        this.binding.textinput.setFocusable(canWrite);
2292        this.binding.textinput.setFocusableInTouchMode(canWrite);
2293        this.binding.textSendButton.setEnabled(canWrite);
2294        this.binding.textinput.setCursorVisible(canWrite);
2295        this.binding.textinput.setEnabled(canWrite);
2296    }
2297
2298    public void updateSendButton() {
2299        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2300        final Conversation c = this.conversation;
2301        final Presence.Status status;
2302        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2303        final SendButtonAction action;
2304        if (hasAttachments) {
2305            action = SendButtonAction.TEXT;
2306        } else {
2307            action = SendButtonTool.getAction(getActivity(), c, text);
2308        }
2309        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2310            if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2311                status = Presence.Status.OFFLINE;
2312            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2313                status = c.getContact().getShownStatus();
2314            } else {
2315                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2316            }
2317        } else {
2318            status = Presence.Status.OFFLINE;
2319        }
2320        this.binding.textSendButton.setTag(action);
2321        final Activity activity = getActivity();
2322        if (activity != null) {
2323            this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(activity, action, status));
2324        }
2325    }
2326
2327    protected void updateStatusMessages() {
2328        DateSeparator.addAll(this.messageList);
2329        if (showLoadMoreMessages(conversation)) {
2330            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2331        }
2332        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2333            ChatState state = conversation.getIncomingChatState();
2334            if (state == ChatState.COMPOSING) {
2335                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2336            } else if (state == ChatState.PAUSED) {
2337                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2338            } else {
2339                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2340                    final Message message = this.messageList.get(i);
2341                    if (message.getType() != Message.TYPE_STATUS) {
2342                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2343                            return;
2344                        } else {
2345                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2346                                this.messageList.add(i + 1,
2347                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2348                                return;
2349                            }
2350                        }
2351                    }
2352                }
2353            }
2354        } else {
2355            final MucOptions mucOptions = conversation.getMucOptions();
2356            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2357            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2358            ChatState state = ChatState.COMPOSING;
2359            List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2360            if (users.size() == 0) {
2361                state = ChatState.PAUSED;
2362                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2363            }
2364            if (mucOptions.isPrivateAndNonAnonymous()) {
2365                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2366                    final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2367                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2368                    for (ReadByMarker marker : markersForMessage) {
2369                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2370                            addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2371                            MucOptions.User user = mucOptions.findUser(marker);
2372                            if (user != null && !users.contains(user)) {
2373                                shownMarkers.add(user);
2374                            }
2375                        }
2376                    }
2377                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2378                    final Message statusMessage;
2379                    final int size = shownMarkers.size();
2380                    if (size > 1) {
2381                        final String body;
2382                        if (size <= 4) {
2383                            body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2384                        } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2385                            body = getString(R.string.everyone_has_read_up_to_this_point);
2386                        } else {
2387                            body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2388                        }
2389                        statusMessage = Message.createStatusMessage(conversation, body);
2390                        statusMessage.setCounterparts(shownMarkers);
2391                    } else if (size == 1) {
2392                        statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2393                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2394                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2395                    } else {
2396                        statusMessage = null;
2397                    }
2398                    if (statusMessage != null) {
2399                        this.messageList.add(i + 1, statusMessage);
2400                    }
2401                    addedMarkers.add(markerForSender);
2402                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2403                        break;
2404                    }
2405                }
2406            }
2407            if (users.size() > 0) {
2408                Message statusMessage;
2409                if (users.size() == 1) {
2410                    MucOptions.User user = users.get(0);
2411                    int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2412                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2413                    statusMessage.setTrueCounterpart(user.getRealJid());
2414                    statusMessage.setCounterpart(user.getFullJid());
2415                } else {
2416                    int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2417                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2418                    statusMessage.setCounterparts(users);
2419                }
2420                this.messageList.add(statusMessage);
2421            }
2422
2423        }
2424    }
2425
2426    private void stopScrolling() {
2427        long now = SystemClock.uptimeMillis();
2428        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2429        binding.messagesView.dispatchTouchEvent(cancel);
2430    }
2431
2432    private boolean showLoadMoreMessages(final Conversation c) {
2433        if (activity == null || activity.xmppConnectionService == null) {
2434            return false;
2435        }
2436        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2437        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2438        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2439    }
2440
2441    private boolean hasMamSupport(final Conversation c) {
2442        if (c.getMode() == Conversation.MODE_SINGLE) {
2443            final XmppConnection connection = c.getAccount().getXmppConnection();
2444            return connection != null && connection.getFeatures().mam();
2445        } else {
2446            return c.getMucOptions().mamSupport();
2447        }
2448    }
2449
2450    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2451        showSnackbar(message, action, clickListener, null);
2452    }
2453
2454    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2455        this.binding.snackbar.setVisibility(View.VISIBLE);
2456        this.binding.snackbar.setOnClickListener(null);
2457        this.binding.snackbarMessage.setText(message);
2458        this.binding.snackbarMessage.setOnClickListener(null);
2459        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2460        if (action != 0) {
2461            this.binding.snackbarAction.setText(action);
2462        }
2463        this.binding.snackbarAction.setOnClickListener(clickListener);
2464        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2465    }
2466
2467    protected void hideSnackbar() {
2468        this.binding.snackbar.setVisibility(View.GONE);
2469    }
2470
2471    protected void sendMessage(Message message) {
2472        activity.xmppConnectionService.sendMessage(message);
2473        messageSent();
2474    }
2475
2476    protected void sendPgpMessage(final Message message) {
2477        final XmppConnectionService xmppService = activity.xmppConnectionService;
2478        final Contact contact = message.getConversation().getContact();
2479        if (!activity.hasPgp()) {
2480            activity.showInstallPgpDialog();
2481            return;
2482        }
2483        if (conversation.getAccount().getPgpSignature() == null) {
2484            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2485            return;
2486        }
2487        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2488            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2489        }
2490        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2491            if (contact.getPgpKeyId() != 0) {
2492                xmppService.getPgpEngine().hasKey(contact,
2493                        new UiCallback<Contact>() {
2494
2495                            @Override
2496                            public void userInputRequired(PendingIntent pi, Contact contact) {
2497                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2498                            }
2499
2500                            @Override
2501                            public void success(Contact contact) {
2502                                encryptTextMessage(message);
2503                            }
2504
2505                            @Override
2506                            public void error(int error, Contact contact) {
2507                                activity.runOnUiThread(() -> Toast.makeText(activity,
2508                                        R.string.unable_to_connect_to_keychain,
2509                                        Toast.LENGTH_SHORT
2510                                ).show());
2511                                mSendingPgpMessage.set(false);
2512                            }
2513                        });
2514
2515            } else {
2516                showNoPGPKeyDialog(false, (dialog, which) -> {
2517                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2518                    xmppService.updateConversation(conversation);
2519                    message.setEncryption(Message.ENCRYPTION_NONE);
2520                    xmppService.sendMessage(message);
2521                    messageSent();
2522                });
2523            }
2524        } else {
2525            if (conversation.getMucOptions().pgpKeysInUse()) {
2526                if (!conversation.getMucOptions().everybodyHasKeys()) {
2527                    Toast warning = Toast
2528                            .makeText(getActivity(),
2529                                    R.string.missing_public_keys,
2530                                    Toast.LENGTH_LONG);
2531                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2532                    warning.show();
2533                }
2534                encryptTextMessage(message);
2535            } else {
2536                showNoPGPKeyDialog(true, (dialog, which) -> {
2537                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2538                    message.setEncryption(Message.ENCRYPTION_NONE);
2539                    xmppService.updateConversation(conversation);
2540                    xmppService.sendMessage(message);
2541                    messageSent();
2542                });
2543            }
2544        }
2545    }
2546
2547    public void encryptTextMessage(Message message) {
2548        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2549                new UiCallback<Message>() {
2550
2551                    @Override
2552                    public void userInputRequired(PendingIntent pi, Message message) {
2553                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2554                    }
2555
2556                    @Override
2557                    public void success(Message message) {
2558                        //TODO the following two call can be made before the callback
2559                        getActivity().runOnUiThread(() -> messageSent());
2560                    }
2561
2562                    @Override
2563                    public void error(final int error, Message message) {
2564                        getActivity().runOnUiThread(() -> {
2565                            doneSendingPgpMessage();
2566                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2567                        });
2568
2569                    }
2570                });
2571    }
2572
2573    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2574        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2575        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2576        if (plural) {
2577            builder.setTitle(getString(R.string.no_pgp_keys));
2578            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2579        } else {
2580            builder.setTitle(getString(R.string.no_pgp_key));
2581            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2582        }
2583        builder.setNegativeButton(getString(R.string.cancel), null);
2584        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2585        builder.create().show();
2586    }
2587
2588    public void appendText(String text, final boolean doNotAppend) {
2589        if (text == null) {
2590            return;
2591        }
2592        final Editable editable = this.binding.textinput.getText();
2593        String previous = editable == null ? "" : editable.toString();
2594        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2595            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2596            return;
2597        }
2598        if (UIHelper.isLastLineQuote(previous)) {
2599            text = '\n' + text;
2600        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2601            text = " " + text;
2602        }
2603        this.binding.textinput.append(text);
2604    }
2605
2606    @Override
2607    public boolean onEnterPressed() {
2608        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2609        final boolean enterIsSend = p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2610        if (enterIsSend) {
2611            sendMessage();
2612            return true;
2613        } else {
2614            return false;
2615        }
2616    }
2617
2618    @Override
2619    public void onTypingStarted() {
2620        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2621        if (service == null) {
2622            return;
2623        }
2624        Account.State status = conversation.getAccount().getStatus();
2625        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2626            service.sendChatState(conversation);
2627        }
2628        runOnUiThread(this::updateSendButton);
2629    }
2630
2631    @Override
2632    public void onTypingStopped() {
2633        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2634        if (service == null) {
2635            return;
2636        }
2637        Account.State status = conversation.getAccount().getStatus();
2638        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2639            service.sendChatState(conversation);
2640        }
2641    }
2642
2643    @Override
2644    public void onTextDeleted() {
2645        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2646        if (service == null) {
2647            return;
2648        }
2649        Account.State status = conversation.getAccount().getStatus();
2650        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2651            service.sendChatState(conversation);
2652        }
2653        if (storeNextMessage()) {
2654            runOnUiThread(() -> {
2655                if (activity == null) {
2656                    return;
2657                }
2658                activity.onConversationsListItemUpdated();
2659            });
2660        }
2661        runOnUiThread(this::updateSendButton);
2662    }
2663
2664    @Override
2665    public void onTextChanged() {
2666        if (conversation != null && conversation.getCorrectingMessage() != null) {
2667            runOnUiThread(this::updateSendButton);
2668        }
2669    }
2670
2671    @Override
2672    public boolean onTabPressed(boolean repeated) {
2673        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2674            return false;
2675        }
2676        if (repeated) {
2677            completionIndex++;
2678        } else {
2679            lastCompletionLength = 0;
2680            completionIndex = 0;
2681            final String content = this.binding.textinput.getText().toString();
2682            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2683            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2684            firstWord = start == 0;
2685            incomplete = content.substring(start, lastCompletionCursor);
2686        }
2687        List<String> completions = new ArrayList<>();
2688        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2689            String name = user.getName();
2690            if (name != null && name.startsWith(incomplete)) {
2691                completions.add(name + (firstWord ? ": " : " "));
2692            }
2693        }
2694        Collections.sort(completions);
2695        if (completions.size() > completionIndex) {
2696            String completion = completions.get(completionIndex).substring(incomplete.length());
2697            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2698            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2699            lastCompletionLength = completion.length();
2700        } else {
2701            completionIndex = -1;
2702            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2703            lastCompletionLength = 0;
2704        }
2705        return true;
2706    }
2707
2708    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2709        try {
2710            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2711        } catch (final SendIntentException ignored) {
2712        }
2713    }
2714
2715    @Override
2716    public void onBackendConnected() {
2717        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2718        String uuid = pendingConversationsUuid.pop();
2719        if (uuid != null) {
2720            if (!findAndReInitByUuidOrArchive(uuid)) {
2721                return;
2722            }
2723        } else {
2724            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2725                clearPending();
2726                activity.onConversationArchived(conversation);
2727                return;
2728            }
2729        }
2730        ActivityResult activityResult = postponedActivityResult.pop();
2731        if (activityResult != null) {
2732            handleActivityResult(activityResult);
2733        }
2734        clearPending();
2735    }
2736
2737    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2738        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2739        if (conversation == null) {
2740            clearPending();
2741            activity.onConversationArchived(null);
2742            return false;
2743        }
2744        reInit(conversation);
2745        ScrollState scrollState = pendingScrollState.pop();
2746        String lastMessageUuid = pendingLastMessageUuid.pop();
2747        List<Attachment> attachments = pendingMediaPreviews.pop();
2748        if (scrollState != null) {
2749            setScrollPosition(scrollState, lastMessageUuid);
2750        }
2751        if (attachments != null && attachments.size() > 0) {
2752            Log.d(Config.LOGTAG, "had attachments on restore");
2753            mediaPreviewAdapter.addMediaPreviews(attachments);
2754            toggleInputMethod();
2755        }
2756        return true;
2757    }
2758
2759    private void clearPending() {
2760        if (postponedActivityResult.clear()) {
2761            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2762        }
2763        if (pendingScrollState.clear()) {
2764            Log.e(Config.LOGTAG, "cleared scroll state");
2765        }
2766        if (pendingTakePhotoUri.clear()) {
2767            Log.e(Config.LOGTAG, "cleared pending photo uri");
2768        }
2769        if (pendingConversationsUuid.clear()) {
2770            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
2771        }
2772        if (pendingMediaPreviews.clear()) {
2773            Log.e(Config.LOGTAG, "cleared pending media previews");
2774        }
2775    }
2776
2777    public Conversation getConversation() {
2778        return conversation;
2779    }
2780
2781    @Override
2782    public void onContactPictureLongClicked(View v, final Message message) {
2783        final String fingerprint;
2784        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2785            fingerprint = "pgp";
2786        } else {
2787            fingerprint = message.getFingerprint();
2788        }
2789        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2790        final Contact contact = message.getContact();
2791        if (message.getStatus() <= Message.STATUS_RECEIVED && (contact == null || !contact.isSelf())) {
2792            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2793                final Jid cp = message.getCounterpart();
2794                if (cp == null || cp.isBareJid()) {
2795                    return;
2796                }
2797                final Jid tcp = message.getTrueCounterpart();
2798                final User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2799                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2800                popupMenu.inflate(R.menu.muc_details_context);
2801                final Menu menu = popupMenu.getMenu();
2802                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2803                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, activity, fingerprint));
2804            } else {
2805                popupMenu.inflate(R.menu.one_on_one_context);
2806                popupMenu.setOnMenuItemClickListener(item -> {
2807                    switch (item.getItemId()) {
2808                        case R.id.action_contact_details:
2809                            activity.switchToContactDetails(message.getContact(), fingerprint);
2810                            break;
2811                        case R.id.action_show_qr_code:
2812                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
2813                            break;
2814                    }
2815                    return true;
2816                });
2817            }
2818        } else {
2819            popupMenu.inflate(R.menu.account_context);
2820            final Menu menu = popupMenu.getMenu();
2821            menu.findItem(R.id.action_manage_accounts).setVisible(QuickConversationsService.isConversations());
2822            popupMenu.setOnMenuItemClickListener(item -> {
2823                switch (item.getItemId()) {
2824                    case R.id.action_show_qr_code:
2825                        activity.showQrCode(conversation.getAccount().getShareableUri());
2826                        break;
2827                    case R.id.action_account_details:
2828                        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2829                        break;
2830                    case R.id.action_manage_accounts:
2831                        AccountUtils.launchManageAccounts(activity);
2832                        break;
2833                }
2834                return true;
2835            });
2836        }
2837        popupMenu.show();
2838    }
2839
2840    @Override
2841    public void onContactPictureClicked(Message message) {
2842        String fingerprint;
2843        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2844            fingerprint = "pgp";
2845        } else {
2846            fingerprint = message.getFingerprint();
2847        }
2848        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
2849        if (received) {
2850            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
2851                Jid tcp = message.getTrueCounterpart();
2852                Jid user = message.getCounterpart();
2853                if (user != null && !user.isBareJid()) {
2854                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
2855                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
2856                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
2857                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
2858                        }
2859                        highlightInConference(user.getResource());
2860                    } else {
2861                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
2862                    }
2863                }
2864                return;
2865            } else {
2866                if (!message.getContact().isSelf()) {
2867                    activity.switchToContactDetails(message.getContact(), fingerprint);
2868                    return;
2869                }
2870            }
2871        }
2872        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2873    }
2874}