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 REQUEST_START_VIDEO_CALL = 0x214;
 144    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 145    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 146    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 147    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 148    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 149    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 150    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 151
 152    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 153    public static final String STATE_CONVERSATION_UUID = ConversationFragment.class.getName() + ".uuid";
 154    public static final String STATE_SCROLL_POSITION = ConversationFragment.class.getName() + ".scroll_position";
 155    public static final String STATE_PHOTO_URI = ConversationFragment.class.getName() + ".media_previews";
 156    public static final String STATE_MEDIA_PREVIEWS = ConversationFragment.class.getName() + ".take_photo_uri";
 157    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 158
 159    private final List<Message> messageList = new ArrayList<>();
 160    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 161    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 162    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 163    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 164    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 165    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 166    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 167    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 168    public Uri mPendingEditorContent = null;
 169    protected MessageAdapter messageListAdapter;
 170    private MediaPreviewAdapter mediaPreviewAdapter;
 171    private String lastMessageUuid = null;
 172    private Conversation conversation;
 173    private FragmentConversationBinding binding;
 174    private Toast messageLoaderToast;
 175    private ConversationsActivity activity;
 176    private boolean reInitRequiredOnStart = true;
 177    private OnClickListener clickToMuc = new OnClickListener() {
 178
 179        @Override
 180        public void onClick(View v) {
 181            Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 182            intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 183            intent.putExtra("uuid", conversation.getUuid());
 184            startActivity(intent);
 185        }
 186    };
 187    private OnClickListener leaveMuc = new OnClickListener() {
 188
 189        @Override
 190        public void onClick(View v) {
 191            activity.xmppConnectionService.archiveConversation(conversation);
 192        }
 193    };
 194    private OnClickListener joinMuc = new OnClickListener() {
 195
 196        @Override
 197        public void onClick(View v) {
 198            activity.xmppConnectionService.joinMuc(conversation);
 199        }
 200    };
 201
 202    private OnClickListener acceptJoin = new OnClickListener() {
 203        @Override
 204        public void onClick(View v) {
 205            conversation.setAttribute("accept_non_anonymous", true);
 206            activity.xmppConnectionService.updateConversation(conversation);
 207            activity.xmppConnectionService.joinMuc(conversation);
 208        }
 209    };
 210
 211    private OnClickListener enterPassword = new OnClickListener() {
 212
 213        @Override
 214        public void onClick(View v) {
 215            MucOptions muc = conversation.getMucOptions();
 216            String password = muc.getPassword();
 217            if (password == null) {
 218                password = "";
 219            }
 220            activity.quickPasswordEdit(password, value -> {
 221                activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 222                return null;
 223            });
 224        }
 225    };
 226    private OnScrollListener mOnScrollListener = new OnScrollListener() {
 227
 228        @Override
 229        public void onScrollStateChanged(AbsListView view, int scrollState) {
 230            if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 231                fireReadEvent();
 232            }
 233        }
 234
 235        @Override
 236        public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 237            toggleScrollDownButton(view);
 238            synchronized (ConversationFragment.this.messageList) {
 239                if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 240                    long timestamp;
 241                    if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 242                        timestamp = messageList.get(1).getTimeSent();
 243                    } else {
 244                        timestamp = messageList.get(0).getTimeSent();
 245                    }
 246                    activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 247                        @Override
 248                        public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 249                            if (ConversationFragment.this.conversation != conversation) {
 250                                conversation.messagesLoaded.set(true);
 251                                return;
 252                            }
 253                            runOnUiThread(() -> {
 254                                synchronized (messageList) {
 255                                    final int oldPosition = binding.messagesView.getFirstVisiblePosition();
 256                                    Message message = null;
 257                                    int childPos;
 258                                    for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 259                                        message = messageList.get(oldPosition + childPos);
 260                                        if (message.getType() != Message.TYPE_STATUS) {
 261                                            break;
 262                                        }
 263                                    }
 264                                    final String uuid = message != null ? message.getUuid() : null;
 265                                    View v = binding.messagesView.getChildAt(childPos);
 266                                    final int pxOffset = (v == null) ? 0 : v.getTop();
 267                                    ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 268                                    try {
 269                                        updateStatusMessages();
 270                                    } catch (IllegalStateException e) {
 271                                        Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 272                                    }
 273                                    messageListAdapter.notifyDataSetChanged();
 274                                    int pos = Math.max(getIndexOf(uuid, messageList), 0);
 275                                    binding.messagesView.setSelectionFromTop(pos, pxOffset);
 276                                    if (messageLoaderToast != null) {
 277                                        messageLoaderToast.cancel();
 278                                    }
 279                                    conversation.messagesLoaded.set(true);
 280                                }
 281                            });
 282                        }
 283
 284                        @Override
 285                        public void informUser(final int resId) {
 286
 287                            runOnUiThread(() -> {
 288                                if (messageLoaderToast != null) {
 289                                    messageLoaderToast.cancel();
 290                                }
 291                                if (ConversationFragment.this.conversation != conversation) {
 292                                    return;
 293                                }
 294                                messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 295                                messageLoaderToast.show();
 296                            });
 297
 298                        }
 299                    });
 300
 301                }
 302            }
 303        }
 304    };
 305    private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 306        @Override
 307        public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 308            // try to get permission to read the image, if applicable
 309            if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 310                try {
 311                    inputContentInfo.requestPermission();
 312                } catch (Exception e) {
 313                    Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 314                    Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()), Toast.LENGTH_LONG
 315                    ).show();
 316                    return false;
 317                }
 318            }
 319            if (hasPermissions(REQUEST_ADD_EDITOR_CONTENT, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 320                attachEditorContentToConversation(inputContentInfo.getContentUri());
 321            } else {
 322                mPendingEditorContent = inputContentInfo.getContentUri();
 323            }
 324            return true;
 325        }
 326    };
 327    private Message selectedMessage;
 328    private OnClickListener mEnableAccountListener = new OnClickListener() {
 329        @Override
 330        public void onClick(View v) {
 331            final Account account = conversation == null ? null : conversation.getAccount();
 332            if (account != null) {
 333                account.setOption(Account.OPTION_DISABLED, false);
 334                activity.xmppConnectionService.updateAccount(account);
 335            }
 336        }
 337    };
 338    private OnClickListener mUnblockClickListener = new OnClickListener() {
 339        @Override
 340        public void onClick(final View v) {
 341            v.post(() -> v.setVisibility(View.INVISIBLE));
 342            if (conversation.isDomainBlocked()) {
 343                BlockContactDialog.show(activity, conversation);
 344            } else {
 345                unblockConversation(conversation);
 346            }
 347        }
 348    };
 349    private OnClickListener mBlockClickListener = this::showBlockSubmenu;
 350    private OnClickListener mAddBackClickListener = new OnClickListener() {
 351
 352        @Override
 353        public void onClick(View v) {
 354            final Contact contact = conversation == null ? null : conversation.getContact();
 355            if (contact != null) {
 356                activity.xmppConnectionService.createContact(contact, true);
 357                activity.switchToContactDetails(contact);
 358            }
 359        }
 360    };
 361    private View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 362    private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 363        @Override
 364        public void onClick(View v) {
 365            final Contact contact = conversation == null ? null : conversation.getContact();
 366            if (contact != null) {
 367                activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 368                        activity.xmppConnectionService.getPresenceGenerator()
 369                                .sendPresenceUpdatesTo(contact));
 370                hideSnackbar();
 371            }
 372        }
 373    };
 374    protected OnClickListener clickToDecryptListener = new OnClickListener() {
 375
 376        @Override
 377        public void onClick(View v) {
 378            PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 379            if (pendingIntent != null) {
 380                try {
 381                    getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(),
 382                            REQUEST_DECRYPT_PGP,
 383                            null,
 384                            0,
 385                            0,
 386                            0);
 387                } catch (SendIntentException e) {
 388                    Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 389                    conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 390                }
 391            }
 392            updateSnackBar(conversation);
 393        }
 394    };
 395    private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 396    private OnEditorActionListener mEditorActionListener = (v, actionId, event) -> {
 397        if (actionId == EditorInfo.IME_ACTION_SEND) {
 398            InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 399            if (imm != null && imm.isFullscreenMode()) {
 400                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 401            }
 402            sendMessage();
 403            return true;
 404        } else {
 405            return false;
 406        }
 407    };
 408    private OnClickListener mScrollButtonListener = new OnClickListener() {
 409
 410        @Override
 411        public void onClick(View v) {
 412            stopScrolling();
 413            setSelection(binding.messagesView.getCount() - 1, true);
 414        }
 415    };
 416    private OnClickListener mSendButtonListener = new OnClickListener() {
 417
 418        @Override
 419        public void onClick(View v) {
 420            Object tag = v.getTag();
 421            if (tag instanceof SendButtonAction) {
 422                SendButtonAction action = (SendButtonAction) tag;
 423                switch (action) {
 424                    case TAKE_PHOTO:
 425                    case RECORD_VIDEO:
 426                    case SEND_LOCATION:
 427                    case RECORD_VOICE:
 428                    case CHOOSE_PICTURE:
 429                        attachFile(action.toChoice());
 430                        break;
 431                    case CANCEL:
 432                        if (conversation != null) {
 433                            if (conversation.setCorrectingMessage(null)) {
 434                                binding.textinput.setText("");
 435                                binding.textinput.append(conversation.getDraftMessage());
 436                                conversation.setDraftMessage(null);
 437                            } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 438                                conversation.setNextCounterpart(null);
 439                                binding.textinput.setText("");
 440                            } else {
 441                                binding.textinput.setText("");
 442                            }
 443                            updateChatMsgHint();
 444                            updateSendButton();
 445                            updateEditablity();
 446                        }
 447                        break;
 448                    default:
 449                        sendMessage();
 450                }
 451            } else {
 452                sendMessage();
 453            }
 454        }
 455    };
 456    private int completionIndex = 0;
 457    private int lastCompletionLength = 0;
 458    private String incomplete;
 459    private int lastCompletionCursor;
 460    private boolean firstWord = false;
 461    private Message mPendingDownloadableMessage;
 462
 463    private static ConversationFragment findConversationFragment(Activity activity) {
 464        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 465        if (fragment instanceof ConversationFragment) {
 466            return (ConversationFragment) fragment;
 467        }
 468        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 469        if (fragment instanceof ConversationFragment) {
 470            return (ConversationFragment) fragment;
 471        }
 472        return null;
 473    }
 474
 475    public static void startStopPending(Activity activity) {
 476        ConversationFragment fragment = findConversationFragment(activity);
 477        if (fragment != null) {
 478            fragment.messageListAdapter.startStopPending();
 479        }
 480    }
 481
 482    public static void downloadFile(Activity activity, Message message) {
 483        ConversationFragment fragment = findConversationFragment(activity);
 484        if (fragment != null) {
 485            fragment.startDownloadable(message);
 486        }
 487    }
 488
 489    public static void registerPendingMessage(Activity activity, Message message) {
 490        ConversationFragment fragment = findConversationFragment(activity);
 491        if (fragment != null) {
 492            fragment.pendingMessage.push(message);
 493        }
 494    }
 495
 496    public static void openPendingMessage(Activity activity) {
 497        ConversationFragment fragment = findConversationFragment(activity);
 498        if (fragment != null) {
 499            Message message = fragment.pendingMessage.pop();
 500            if (message != null) {
 501                fragment.messageListAdapter.openDownloadable(message);
 502            }
 503        }
 504    }
 505
 506    public static Conversation getConversation(Activity activity) {
 507        return getConversation(activity, R.id.secondary_fragment);
 508    }
 509
 510    private static Conversation getConversation(Activity activity, @IdRes int res) {
 511        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 512        if (fragment != null && fragment instanceof ConversationFragment) {
 513            return ((ConversationFragment) fragment).getConversation();
 514        } else {
 515            return null;
 516        }
 517    }
 518
 519    public static ConversationFragment get(Activity activity) {
 520        FragmentManager fragmentManager = activity.getFragmentManager();
 521        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 522        if (fragment != null && fragment instanceof ConversationFragment) {
 523            return (ConversationFragment) fragment;
 524        } else {
 525            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 526            return fragment != null && fragment instanceof ConversationFragment ? (ConversationFragment) fragment : null;
 527        }
 528    }
 529
 530    public static Conversation getConversationReliable(Activity activity) {
 531        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 532        if (conversation != null) {
 533            return conversation;
 534        }
 535        return getConversation(activity, R.id.main_fragment);
 536    }
 537
 538    private static boolean scrolledToBottom(AbsListView listView) {
 539        final int count = listView.getCount();
 540        if (count == 0) {
 541            return true;
 542        } else if (listView.getLastVisiblePosition() == count - 1) {
 543            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 544            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 545        } else {
 546            return false;
 547        }
 548    }
 549
 550    private void toggleScrollDownButton() {
 551        toggleScrollDownButton(binding.messagesView);
 552    }
 553
 554    private void toggleScrollDownButton(AbsListView listView) {
 555        if (conversation == null) {
 556            return;
 557        }
 558        if (scrolledToBottom(listView)) {
 559            lastMessageUuid = null;
 560            hideUnreadMessagesCount();
 561        } else {
 562            binding.scrollToBottomButton.setEnabled(true);
 563            binding.scrollToBottomButton.show();
 564            if (lastMessageUuid == null) {
 565                lastMessageUuid = conversation.getLatestMessage().getUuid();
 566            }
 567            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 568                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 569            }
 570        }
 571    }
 572
 573    private int getIndexOf(String uuid, List<Message> messages) {
 574        if (uuid == null) {
 575            return messages.size() - 1;
 576        }
 577        for (int i = 0; i < messages.size(); ++i) {
 578            if (uuid.equals(messages.get(i).getUuid())) {
 579                return i;
 580            } else {
 581                Message next = messages.get(i);
 582                while (next != null && next.wasMergedIntoPrevious()) {
 583                    if (uuid.equals(next.getUuid())) {
 584                        return i;
 585                    }
 586                    next = next.next();
 587                }
 588
 589            }
 590        }
 591        return -1;
 592    }
 593
 594    private ScrollState getScrollPosition() {
 595        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 596        if (listView == null || listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 597            return null;
 598        } else {
 599            final int pos = listView.getFirstVisiblePosition();
 600            final View view = listView.getChildAt(0);
 601            if (view == null) {
 602                return null;
 603            } else {
 604                return new ScrollState(pos, view.getTop());
 605            }
 606        }
 607    }
 608
 609    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 610        if (scrollPosition != null) {
 611
 612            this.lastMessageUuid = lastMessageUuid;
 613            if (lastMessageUuid != null) {
 614                binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 615            }
 616            //TODO maybe this needs a 'post'
 617            this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 618            toggleScrollDownButton();
 619        }
 620    }
 621
 622    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 623        if (conversation == null) {
 624            return;
 625        }
 626        activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 627
 628            @Override
 629            public void success(Message message) {
 630
 631            }
 632
 633            @Override
 634            public void error(int errorCode, Message object) {
 635                //TODO show possible pgp error
 636            }
 637
 638            @Override
 639            public void userInputRequired(PendingIntent pi, Message object) {
 640
 641            }
 642        });
 643    }
 644
 645    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 646        if (conversation == null) {
 647            return;
 648        }
 649        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 650        prepareFileToast.show();
 651        activity.delegateUriPermissionsToService(uri);
 652        activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 653            @Override
 654            public void inform(final String text) {
 655                hidePrepareFileToast(prepareFileToast);
 656                runOnUiThread(() -> activity.replaceToast(text));
 657            }
 658
 659            @Override
 660            public void success(Message message) {
 661                runOnUiThread(() -> activity.hideToast());
 662                hidePrepareFileToast(prepareFileToast);
 663            }
 664
 665            @Override
 666            public void error(final int errorCode, Message message) {
 667                hidePrepareFileToast(prepareFileToast);
 668                runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 669
 670            }
 671
 672            @Override
 673            public void userInputRequired(PendingIntent pi, Message message) {
 674                hidePrepareFileToast(prepareFileToast);
 675            }
 676        });
 677    }
 678
 679    public void attachEditorContentToConversation(Uri uri) {
 680        mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 681        toggleInputMethod();
 682    }
 683
 684    private void attachImageToConversation(Conversation conversation, Uri uri) {
 685        if (conversation == null) {
 686            return;
 687        }
 688        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 689        prepareFileToast.show();
 690        activity.delegateUriPermissionsToService(uri);
 691        activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 692                new UiCallback<Message>() {
 693
 694                    @Override
 695                    public void userInputRequired(PendingIntent pi, Message object) {
 696                        hidePrepareFileToast(prepareFileToast);
 697                    }
 698
 699                    @Override
 700                    public void success(Message message) {
 701                        hidePrepareFileToast(prepareFileToast);
 702                    }
 703
 704                    @Override
 705                    public void error(final int error, Message message) {
 706                        hidePrepareFileToast(prepareFileToast);
 707                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 708                    }
 709                });
 710    }
 711
 712    private void hidePrepareFileToast(final Toast prepareFileToast) {
 713        if (prepareFileToast != null && activity != null) {
 714            activity.runOnUiThread(prepareFileToast::cancel);
 715        }
 716    }
 717
 718    private void sendMessage() {
 719        if (mediaPreviewAdapter.hasAttachments()) {
 720            commitAttachments();
 721            return;
 722        }
 723        final Editable text = this.binding.textinput.getText();
 724        final String body = text == null ? "" : text.toString();
 725        final Conversation conversation = this.conversation;
 726        if (body.length() == 0 || conversation == null) {
 727            return;
 728        }
 729        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 730            return;
 731        }
 732        final Message message;
 733        if (conversation.getCorrectingMessage() == null) {
 734            message = new Message(conversation, body, conversation.getNextEncryption());
 735            Message.configurePrivateMessage(message);
 736        } else {
 737            message = conversation.getCorrectingMessage();
 738            message.setBody(body);
 739            message.putEdited(message.getUuid(), message.getServerMsgId());
 740            message.setServerMsgId(null);
 741            message.setUuid(UUID.randomUUID().toString());
 742        }
 743        switch (conversation.getNextEncryption()) {
 744            case Message.ENCRYPTION_PGP:
 745                sendPgpMessage(message);
 746                break;
 747            default:
 748                sendMessage(message);
 749        }
 750    }
 751
 752    protected boolean trustKeysIfNeeded(int requestCode) {
 753        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 754        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 755        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 756        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 757        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 758        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 759        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 760        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 761        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 762            axolotlService.createSessionsIfNeeded(conversation);
 763            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 764            String[] contacts = new String[targets.size()];
 765            for (int i = 0; i < contacts.length; ++i) {
 766                contacts[i] = targets.get(i).toString();
 767            }
 768            intent.putExtra("contacts", contacts);
 769            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toString());
 770            intent.putExtra("conversation", conversation.getUuid());
 771            startActivityForResult(intent, requestCode);
 772            return true;
 773        } else {
 774            return false;
 775        }
 776    }
 777
 778    public void updateChatMsgHint() {
 779        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 780        if (conversation.getCorrectingMessage() != null) {
 781            this.binding.textInputHint.setVisibility(View.GONE);
 782            this.binding.textinput.setHint(R.string.send_corrected_message);
 783        } else if (multi && conversation.getNextCounterpart() != null) {
 784            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 785            this.binding.textInputHint.setVisibility(View.VISIBLE);
 786            this.binding.textInputHint.setText(getString(
 787                    R.string.send_private_message_to,
 788                    conversation.getNextCounterpart().getResource()));
 789        } else if (multi && !conversation.getMucOptions().participating()) {
 790            this.binding.textInputHint.setVisibility(View.GONE);
 791            this.binding.textinput.setHint(R.string.you_are_not_participating);
 792        } else {
 793            this.binding.textInputHint.setVisibility(View.GONE);
 794            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 795            getActivity().invalidateOptionsMenu();
 796        }
 797    }
 798
 799    public void setupIme() {
 800        this.binding.textinput.refreshIme();
 801    }
 802
 803    private void handleActivityResult(ActivityResult activityResult) {
 804        if (activityResult.resultCode == Activity.RESULT_OK) {
 805            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 806        } else {
 807            handleNegativeActivityResult(activityResult.requestCode);
 808        }
 809    }
 810
 811    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 812        switch (requestCode) {
 813            case REQUEST_TRUST_KEYS_TEXT:
 814                sendMessage();
 815                break;
 816            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 817                commitAttachments();
 818                break;
 819            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 820                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 821                mediaPreviewAdapter.addMediaPreviews(imageUris);
 822                toggleInputMethod();
 823                break;
 824            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 825                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 826                if (takePhotoUri != null) {
 827                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 828                    toggleInputMethod();
 829                } else {
 830                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 831                }
 832                break;
 833            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 834            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 835            case ATTACHMENT_CHOICE_RECORD_VOICE:
 836                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 837                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 838                mediaPreviewAdapter.addMediaPreviews(fileUris);
 839                toggleInputMethod();
 840                break;
 841            case ATTACHMENT_CHOICE_LOCATION:
 842                double latitude = data.getDoubleExtra("latitude", 0);
 843                double longitude = data.getDoubleExtra("longitude", 0);
 844                Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 845                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 846                toggleInputMethod();
 847                break;
 848            case REQUEST_INVITE_TO_CONVERSATION:
 849                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 850                if (invite != null) {
 851                    if (invite.execute(activity)) {
 852                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 853                        activity.mToast.show();
 854                    }
 855                }
 856                break;
 857        }
 858    }
 859
 860    private void commitAttachments() {
 861        if (!hasPermissions(REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 862            return;
 863        }
 864        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 865            return;
 866        }
 867        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 868        final PresenceSelector.OnPresenceSelected callback = () -> {
 869            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 870                final Attachment attachment = i.next();
 871                if (attachment.getType() == Attachment.Type.LOCATION) {
 872                    attachLocationToConversation(conversation, attachment.getUri());
 873                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 874                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 875                    attachImageToConversation(conversation, attachment.getUri());
 876                } else {
 877                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 878                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 879                }
 880            }
 881            mediaPreviewAdapter.notifyDataSetChanged();
 882            toggleInputMethod();
 883        };
 884        if (conversation == null
 885                || conversation.getMode() == Conversation.MODE_MULTI
 886                || Attachment.canBeSendInband(attachments)
 887                || (conversation.getAccount().httpUploadAvailable() && FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
 888            callback.onPresenceSelected();
 889        } else {
 890            activity.selectPresence(conversation, callback);
 891        }
 892    }
 893
 894    public void toggleInputMethod() {
 895        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 896        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 897        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 898        updateSendButton();
 899    }
 900
 901    private void handleNegativeActivityResult(int requestCode) {
 902        switch (requestCode) {
 903            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 904                if (pendingTakePhotoUri.clear()) {
 905                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 906                }
 907                break;
 908        }
 909    }
 910
 911    @Override
 912    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 913        super.onActivityResult(requestCode, resultCode, data);
 914        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 915        if (activity != null && activity.xmppConnectionService != null) {
 916            handleActivityResult(activityResult);
 917        } else {
 918            this.postponedActivityResult.push(activityResult);
 919        }
 920    }
 921
 922    public void unblockConversation(final Blockable conversation) {
 923        activity.xmppConnectionService.sendUnblockRequest(conversation);
 924    }
 925
 926    @Override
 927    public void onAttach(Activity activity) {
 928        super.onAttach(activity);
 929        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 930        if (activity instanceof ConversationsActivity) {
 931            this.activity = (ConversationsActivity) activity;
 932        } else {
 933            throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 934        }
 935    }
 936
 937    @Override
 938    public void onDetach() {
 939        super.onDetach();
 940        this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 941    }
 942
 943    @Override
 944    public void onCreate(Bundle savedInstanceState) {
 945        super.onCreate(savedInstanceState);
 946        setHasOptionsMenu(true);
 947    }
 948
 949    @Override
 950    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 951        menuInflater.inflate(R.menu.fragment_conversation, menu);
 952        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 953        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 954        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 955        final MenuItem menuMute = menu.findItem(R.id.action_mute);
 956        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 957        final MenuItem menuCall = menu.findItem(R.id.action_call);
 958        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
 959
 960
 961        if (conversation != null) {
 962            if (conversation.getMode() == Conversation.MODE_MULTI) {
 963                menuContactDetails.setVisible(false);
 964                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 965                menuMucDetails.setTitle(conversation.getMucOptions().isPrivateAndNonAnonymous() ? R.string.action_muc_details : R.string.channel_details);
 966                menuCall.setVisible(false);
 967            } else {
 968                final RtpCapability.Capability rtpCapability = RtpCapability.check(conversation.getContact());
 969                menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
 970                menuVideoCall.setVisible(rtpCapability == RtpCapability.Capability.VIDEO);
 971                menuContactDetails.setVisible(!this.conversation.withSelf());
 972                menuMucDetails.setVisible(false);
 973                final XmppConnectionService service = activity.xmppConnectionService;
 974                menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
 975            }
 976            if (conversation.isMuted()) {
 977                menuMute.setVisible(false);
 978            } else {
 979                menuUnmute.setVisible(false);
 980            }
 981            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
 982            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
 983        }
 984        super.onCreateOptionsMenu(menu, menuInflater);
 985    }
 986
 987    @Override
 988    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 989        this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
 990        binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
 991
 992        binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
 993
 994        binding.textinput.setOnEditorActionListener(mEditorActionListener);
 995        binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
 996
 997        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
 998
 999        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1000        binding.messagesView.setOnScrollListener(mOnScrollListener);
1001        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1002        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1003        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1004        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1005        messageListAdapter.setOnContactPictureClicked(this);
1006        messageListAdapter.setOnContactPictureLongClicked(this);
1007        messageListAdapter.setOnQuoteListener(this::quoteText);
1008        binding.messagesView.setAdapter(messageListAdapter);
1009
1010        registerForContextMenu(binding.messagesView);
1011
1012        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1013            this.binding.textinput.setCustomInsertionActionModeCallback(new EditMessageActionModeCallback(this.binding.textinput));
1014        }
1015
1016        return binding.getRoot();
1017    }
1018
1019    private void quoteText(String text) {
1020        if (binding.textinput.isEnabled()) {
1021            binding.textinput.insertAsQuote(text);
1022            binding.textinput.requestFocus();
1023            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1024            if (inputMethodManager != null) {
1025                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1026            }
1027        }
1028    }
1029
1030    private void quoteMessage(Message message) {
1031        quoteText(MessageUtils.prepareQuote(message));
1032    }
1033
1034    @Override
1035    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1036        synchronized (this.messageList) {
1037            super.onCreateContextMenu(menu, v, menuInfo);
1038            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1039            this.selectedMessage = this.messageList.get(acmi.position);
1040            populateContextMenu(menu);
1041        }
1042    }
1043
1044    private void populateContextMenu(ContextMenu menu) {
1045        final Message m = this.selectedMessage;
1046        final Transferable t = m.getTransferable();
1047        Message relevantForCorrection = m;
1048        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1049            relevantForCorrection = relevantForCorrection.next();
1050        }
1051        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1052
1053            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1054                return;
1055            }
1056
1057            if (m.getStatus() == Message.STATUS_RECEIVED && t != null && (t.getStatus() == Transferable.STATUS_CANCELLED || t.getStatus() == Transferable.STATUS_FAILED)) {
1058                return;
1059            }
1060
1061            final boolean deleted = m.isDeleted();
1062            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1063                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1064            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleFileTransferConnection || t instanceof HttpDownloadConnection);
1065            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1066            menu.setHeaderTitle(R.string.message_options);
1067            MenuItem openWith = menu.findItem(R.id.open_with);
1068            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1069            MenuItem copyLink = menu.findItem(R.id.copy_link);
1070            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1071            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1072            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1073            MenuItem shareWith = menu.findItem(R.id.share_with);
1074            MenuItem sendAgain = menu.findItem(R.id.send_again);
1075            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1076            MenuItem downloadFile = menu.findItem(R.id.download_file);
1077            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1078            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1079            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1080            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1081            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1082                copyMessage.setVisible(true);
1083                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1084                String body = m.getMergedBody().toString();
1085                if (ShareUtil.containsXmppUri(body)) {
1086                    copyLink.setTitle(R.string.copy_jabber_id);
1087                    copyLink.setVisible(true);
1088                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1089                    copyLink.setVisible(true);
1090                }
1091            }
1092            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1093                retryDecryption.setVisible(true);
1094            }
1095            if (!showError
1096                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1097                    && !m.isGeoUri()
1098                    && relevantForCorrection.isLastCorrectableMessage()
1099                    && m.getConversation() instanceof Conversation) {
1100                correctMessage.setVisible(true);
1101            }
1102            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1103                shareWith.setVisible(true);
1104            }
1105            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1106                sendAgain.setVisible(true);
1107            }
1108            if (m.hasFileOnRemoteHost()
1109                    || m.isGeoUri()
1110                    || m.treatAsDownloadable()
1111                    || t instanceof HttpDownloadConnection) {
1112                copyUrl.setVisible(true);
1113            }
1114            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1115                downloadFile.setVisible(true);
1116                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1117            }
1118            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1119                    || m.getStatus() == Message.STATUS_UNSEND
1120                    || m.getStatus() == Message.STATUS_OFFERED;
1121            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1122            if (cancelable) {
1123                cancelTransmission.setVisible(true);
1124            }
1125            if (m.isFileOrImage() && !deleted && !cancelable) {
1126                String path = m.getRelativeFilePath();
1127                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1128                    deleteFile.setVisible(true);
1129                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1130                }
1131            }
1132            if (showError) {
1133                showErrorMessage.setVisible(true);
1134            }
1135            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1136            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m)) || (mime != null && mime.startsWith("audio/"))) {
1137                openWith.setVisible(true);
1138            }
1139        }
1140    }
1141
1142    @Override
1143    public boolean onContextItemSelected(MenuItem item) {
1144        switch (item.getItemId()) {
1145            case R.id.share_with:
1146                ShareUtil.share(activity, selectedMessage);
1147                return true;
1148            case R.id.correct_message:
1149                correctMessage(selectedMessage);
1150                return true;
1151            case R.id.copy_message:
1152                ShareUtil.copyToClipboard(activity, selectedMessage);
1153                return true;
1154            case R.id.copy_link:
1155                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1156                return true;
1157            case R.id.quote_message:
1158                quoteMessage(selectedMessage);
1159                return true;
1160            case R.id.send_again:
1161                resendMessage(selectedMessage);
1162                return true;
1163            case R.id.copy_url:
1164                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1165                return true;
1166            case R.id.download_file:
1167                startDownloadable(selectedMessage);
1168                return true;
1169            case R.id.cancel_transmission:
1170                cancelTransmission(selectedMessage);
1171                return true;
1172            case R.id.retry_decryption:
1173                retryDecryption(selectedMessage);
1174                return true;
1175            case R.id.delete_file:
1176                deleteFile(selectedMessage);
1177                return true;
1178            case R.id.show_error_message:
1179                showErrorMessage(selectedMessage);
1180                return true;
1181            case R.id.open_with:
1182                openWith(selectedMessage);
1183                return true;
1184            default:
1185                return super.onContextItemSelected(item);
1186        }
1187    }
1188
1189    @Override
1190    public boolean onOptionsItemSelected(final MenuItem item) {
1191        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1192            return false;
1193        } else if (conversation == null) {
1194            return super.onOptionsItemSelected(item);
1195        }
1196        switch (item.getItemId()) {
1197            case R.id.encryption_choice_axolotl:
1198            case R.id.encryption_choice_pgp:
1199            case R.id.encryption_choice_none:
1200                handleEncryptionSelection(item);
1201                break;
1202            case R.id.attach_choose_picture:
1203            case R.id.attach_take_picture:
1204            case R.id.attach_record_video:
1205            case R.id.attach_choose_file:
1206            case R.id.attach_record_voice:
1207            case R.id.attach_location:
1208                handleAttachmentSelection(item);
1209                break;
1210            case R.id.action_archive:
1211                activity.xmppConnectionService.archiveConversation(conversation);
1212                break;
1213            case R.id.action_contact_details:
1214                activity.switchToContactDetails(conversation.getContact());
1215                break;
1216            case R.id.action_muc_details:
1217                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1218                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1219                intent.putExtra("uuid", conversation.getUuid());
1220                startActivity(intent);
1221                break;
1222            case R.id.action_invite:
1223                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1224                break;
1225            case R.id.action_clear_history:
1226                clearHistoryDialog(conversation);
1227                break;
1228            case R.id.action_mute:
1229                muteConversationDialog(conversation);
1230                break;
1231            case R.id.action_unmute:
1232                unmuteConversation(conversation);
1233                break;
1234            case R.id.action_block:
1235            case R.id.action_unblock:
1236                final Activity activity = getActivity();
1237                if (activity instanceof XmppActivity) {
1238                    BlockContactDialog.show((XmppActivity) activity, conversation);
1239                }
1240                break;
1241            case R.id.action_audio_call:
1242                checkPermissionAndTriggerAudioCall();
1243                break;
1244            case R.id.action_video_call:
1245                checkPermissionAndTriggerVideoCall();
1246                break;
1247            default:
1248                break;
1249        }
1250        return super.onOptionsItemSelected(item);
1251    }
1252
1253    private void checkPermissionAndTriggerAudioCall() {
1254        if (activity.xmppConnectionService.useTorToConnect() || conversation.getAccount().isOnion()) {
1255            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1256            return;
1257        }
1258        if (hasPermissions(REQUEST_START_AUDIO_CALL, Manifest.permission.RECORD_AUDIO)) {
1259            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1260        }
1261    }
1262
1263    private void checkPermissionAndTriggerVideoCall() {
1264        if (activity.xmppConnectionService.useTorToConnect() || conversation.getAccount().isOnion()) {
1265            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1266            return;
1267        }
1268        if (hasPermissions(REQUEST_START_VIDEO_CALL, Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA)) {
1269            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1270        }
1271    }
1272
1273
1274    private void triggerRtpSession(final String action) {
1275        final Contact contact = conversation.getContact();
1276        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1277        intent.setAction(action);
1278        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, contact.getAccount().getJid().toEscapedString());
1279        intent.putExtra(RtpSessionActivity.EXTRA_WITH, contact.getJid().asBareJid().toEscapedString());
1280        startActivity(intent);
1281    }
1282
1283    private void handleAttachmentSelection(MenuItem item) {
1284        switch (item.getItemId()) {
1285            case R.id.attach_choose_picture:
1286                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1287                break;
1288            case R.id.attach_take_picture:
1289                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1290                break;
1291            case R.id.attach_record_video:
1292                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1293                break;
1294            case R.id.attach_choose_file:
1295                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1296                break;
1297            case R.id.attach_record_voice:
1298                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1299                break;
1300            case R.id.attach_location:
1301                attachFile(ATTACHMENT_CHOICE_LOCATION);
1302                break;
1303        }
1304    }
1305
1306    private void handleEncryptionSelection(MenuItem item) {
1307        if (conversation == null) {
1308            return;
1309        }
1310        final boolean updated;
1311        switch (item.getItemId()) {
1312            case R.id.encryption_choice_none:
1313                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1314                item.setChecked(true);
1315                break;
1316            case R.id.encryption_choice_pgp:
1317                if (activity.hasPgp()) {
1318                    if (conversation.getAccount().getPgpSignature() != null) {
1319                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1320                        item.setChecked(true);
1321                    } else {
1322                        updated = false;
1323                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1324                    }
1325                } else {
1326                    activity.showInstallPgpDialog();
1327                    updated = false;
1328                }
1329                break;
1330            case R.id.encryption_choice_axolotl:
1331                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1332                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1333                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1334                item.setChecked(true);
1335                break;
1336            default:
1337                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1338                break;
1339        }
1340        if (updated) {
1341            activity.xmppConnectionService.updateConversation(conversation);
1342        }
1343        updateChatMsgHint();
1344        getActivity().invalidateOptionsMenu();
1345        activity.refreshUi();
1346    }
1347
1348    public void attachFile(final int attachmentChoice) {
1349        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1350            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1351                return;
1352            }
1353        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1354            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1355                return;
1356            }
1357        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1358            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1359                return;
1360            }
1361        }
1362        try {
1363            activity.getPreferences().edit()
1364                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1365                    .apply();
1366        } catch (IllegalArgumentException e) {
1367            //just do not save
1368        }
1369        final int encryption = conversation.getNextEncryption();
1370        final int mode = conversation.getMode();
1371        if (encryption == Message.ENCRYPTION_PGP) {
1372            if (activity.hasPgp()) {
1373                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1374                    activity.xmppConnectionService.getPgpEngine().hasKey(
1375                            conversation.getContact(),
1376                            new UiCallback<Contact>() {
1377
1378                                @Override
1379                                public void userInputRequired(PendingIntent pi, Contact contact) {
1380                                    startPendingIntent(pi, attachmentChoice);
1381                                }
1382
1383                                @Override
1384                                public void success(Contact contact) {
1385                                    invokeAttachFileIntent(attachmentChoice);
1386                                }
1387
1388                                @Override
1389                                public void error(int error, Contact contact) {
1390                                    activity.replaceToast(getString(error));
1391                                }
1392                            });
1393                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1394                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1395                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1396                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1397                        warning.show();
1398                    }
1399                    invokeAttachFileIntent(attachmentChoice);
1400                } else {
1401                    showNoPGPKeyDialog(false, (dialog, which) -> {
1402                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1403                        activity.xmppConnectionService.updateConversation(conversation);
1404                        invokeAttachFileIntent(attachmentChoice);
1405                    });
1406                }
1407            } else {
1408                activity.showInstallPgpDialog();
1409            }
1410        } else {
1411            invokeAttachFileIntent(attachmentChoice);
1412        }
1413    }
1414
1415    @Override
1416    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1417        if (grantResults.length > 0) {
1418            if (allGranted(grantResults)) {
1419                switch (requestCode) {
1420                    case REQUEST_START_DOWNLOAD:
1421                        if (this.mPendingDownloadableMessage != null) {
1422                            startDownloadable(this.mPendingDownloadableMessage);
1423                        }
1424                        break;
1425                    case REQUEST_ADD_EDITOR_CONTENT:
1426                        if (this.mPendingEditorContent != null) {
1427                            attachEditorContentToConversation(this.mPendingEditorContent);
1428                        }
1429                        break;
1430                    case REQUEST_COMMIT_ATTACHMENTS:
1431                        commitAttachments();
1432                        break;
1433                    case REQUEST_START_AUDIO_CALL:
1434                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1435                        break;
1436                    case REQUEST_START_VIDEO_CALL:
1437                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1438                        break;
1439                    default:
1440                        attachFile(requestCode);
1441                        break;
1442                }
1443            } else {
1444                @StringRes int res;
1445                String firstDenied = getFirstDenied(grantResults, permissions);
1446                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1447                    res = R.string.no_microphone_permission;
1448                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1449                    res = R.string.no_camera_permission;
1450                } else {
1451                    res = R.string.no_storage_permission;
1452                }
1453                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1454            }
1455        }
1456        if (writeGranted(grantResults, permissions)) {
1457            if (activity != null && activity.xmppConnectionService != null) {
1458                activity.xmppConnectionService.restartFileObserver();
1459            }
1460            refresh();
1461        }
1462    }
1463
1464    public void startDownloadable(Message message) {
1465        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1466            this.mPendingDownloadableMessage = message;
1467            return;
1468        }
1469        Transferable transferable = message.getTransferable();
1470        if (transferable != null) {
1471            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1472                createNewConnection(message);
1473                return;
1474            }
1475            if (!transferable.start()) {
1476                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1477                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1478            }
1479        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost() || MessageUtils.unInitiatedButKnownSize(message)) {
1480            createNewConnection(message);
1481        } else {
1482            Log.d(Config.LOGTAG, message.getConversation().getAccount() + ": unable to start downloadable");
1483        }
1484    }
1485
1486    private void createNewConnection(final Message message) {
1487        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1488            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1489            return;
1490        }
1491        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1492    }
1493
1494    @SuppressLint("InflateParams")
1495    protected void clearHistoryDialog(final Conversation conversation) {
1496        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1497        builder.setTitle(getString(R.string.clear_conversation_history));
1498        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1499        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1500        builder.setView(dialogView);
1501        builder.setNegativeButton(getString(R.string.cancel), null);
1502        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1503            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1504            if (endConversationCheckBox.isChecked()) {
1505                this.activity.xmppConnectionService.archiveConversation(conversation);
1506                this.activity.onConversationArchived(conversation);
1507            } else {
1508                activity.onConversationsListItemUpdated();
1509                refresh();
1510            }
1511        });
1512        builder.create().show();
1513    }
1514
1515    protected void muteConversationDialog(final Conversation conversation) {
1516        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1517        builder.setTitle(R.string.disable_notifications);
1518        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1519        final CharSequence[] labels = new CharSequence[durations.length];
1520        for (int i = 0; i < durations.length; ++i) {
1521            if (durations[i] == -1) {
1522                labels[i] = getString(R.string.until_further_notice);
1523            } else {
1524                labels[i] = TimeframeUtils.resolve(activity, 1000L * durations[i]);
1525            }
1526        }
1527        builder.setItems(labels, (dialog, which) -> {
1528            final long till;
1529            if (durations[which] == -1) {
1530                till = Long.MAX_VALUE;
1531            } else {
1532                till = System.currentTimeMillis() + (durations[which] * 1000);
1533            }
1534            conversation.setMutedTill(till);
1535            activity.xmppConnectionService.updateConversation(conversation);
1536            activity.onConversationsListItemUpdated();
1537            refresh();
1538            getActivity().invalidateOptionsMenu();
1539        });
1540        builder.create().show();
1541    }
1542
1543    private boolean hasPermissions(int requestCode, String... permissions) {
1544        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1545            final List<String> missingPermissions = new ArrayList<>();
1546            for (String permission : permissions) {
1547                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1548                    continue;
1549                }
1550                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1551                    missingPermissions.add(permission);
1552                }
1553            }
1554            if (missingPermissions.size() == 0) {
1555                return true;
1556            } else {
1557                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1558                return false;
1559            }
1560        } else {
1561            return true;
1562        }
1563    }
1564
1565    public void unmuteConversation(final Conversation conversation) {
1566        conversation.setMutedTill(0);
1567        this.activity.xmppConnectionService.updateConversation(conversation);
1568        this.activity.onConversationsListItemUpdated();
1569        refresh();
1570        getActivity().invalidateOptionsMenu();
1571    }
1572
1573
1574    protected void invokeAttachFileIntent(final int attachmentChoice) {
1575        Intent intent = new Intent();
1576        boolean chooser = false;
1577        switch (attachmentChoice) {
1578            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1579                intent.setAction(Intent.ACTION_GET_CONTENT);
1580                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1581                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1582                }
1583                intent.setType("image/*");
1584                chooser = true;
1585                break;
1586            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1587                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1588                break;
1589            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1590                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1591                pendingTakePhotoUri.push(uri);
1592                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1593                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1594                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1595                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1596                break;
1597            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1598                chooser = true;
1599                intent.setType("*/*");
1600                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1601                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1602                }
1603                intent.addCategory(Intent.CATEGORY_OPENABLE);
1604                intent.setAction(Intent.ACTION_GET_CONTENT);
1605                break;
1606            case ATTACHMENT_CHOICE_RECORD_VOICE:
1607                intent = new Intent(getActivity(), RecordingActivity.class);
1608                break;
1609            case ATTACHMENT_CHOICE_LOCATION:
1610                intent = GeoHelper.getFetchIntent(activity);
1611                break;
1612        }
1613        final Context context = getActivity();
1614        if (context != null && intent.resolveActivity(context.getPackageManager()) != null) {
1615            if (chooser) {
1616                startActivityForResult(
1617                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
1618                        attachmentChoice);
1619            } else {
1620                startActivityForResult(intent, attachmentChoice);
1621            }
1622        }
1623    }
1624
1625    @Override
1626    public void onResume() {
1627        super.onResume();
1628        binding.messagesView.post(this::fireReadEvent);
1629    }
1630
1631    private void fireReadEvent() {
1632        if (activity != null && this.conversation != null) {
1633            String uuid = getLastVisibleMessageUuid();
1634            if (uuid != null) {
1635                activity.onConversationRead(this.conversation, uuid);
1636            }
1637        }
1638    }
1639
1640    private String getLastVisibleMessageUuid() {
1641        if (binding == null) {
1642            return null;
1643        }
1644        synchronized (this.messageList) {
1645            int pos = binding.messagesView.getLastVisiblePosition();
1646            if (pos >= 0) {
1647                Message message = null;
1648                for (int i = pos; i >= 0; --i) {
1649                    try {
1650                        message = (Message) binding.messagesView.getItemAtPosition(i);
1651                    } catch (IndexOutOfBoundsException e) {
1652                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1653                        continue;
1654                    }
1655                    if (message.getType() != Message.TYPE_STATUS) {
1656                        break;
1657                    }
1658                }
1659                if (message != null) {
1660                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1661                        message = message.next();
1662                    }
1663                    return message.getUuid();
1664                }
1665            }
1666        }
1667        return null;
1668    }
1669
1670    private void openWith(final Message message) {
1671        if (message.isGeoUri()) {
1672            GeoHelper.view(getActivity(), message);
1673        } else {
1674            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1675            ViewUtil.view(activity, file);
1676        }
1677    }
1678
1679    private void showErrorMessage(final Message message) {
1680        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1681        builder.setTitle(R.string.error_message);
1682        final String errorMessage = message.getErrorMessage();
1683        final String[] errorMessageParts = errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
1684        final String displayError;
1685        if (errorMessageParts.length == 2) {
1686            displayError = errorMessageParts[1];
1687        } else {
1688            displayError = errorMessage;
1689        }
1690        builder.setMessage(displayError);
1691        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1692            activity.copyTextToClipboard(displayError, R.string.error_message);
1693            Toast.makeText(activity, R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1694        });
1695        builder.setPositiveButton(R.string.confirm, null);
1696        builder.create().show();
1697    }
1698
1699
1700    private void deleteFile(final Message message) {
1701        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1702        builder.setNegativeButton(R.string.cancel, null);
1703        builder.setTitle(R.string.delete_file_dialog);
1704        builder.setMessage(R.string.delete_file_dialog_msg);
1705        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1706            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1707                message.setDeleted(true);
1708                activity.xmppConnectionService.evictPreview(message.getUuid());
1709                activity.xmppConnectionService.updateMessage(message, false);
1710                activity.onConversationsListItemUpdated();
1711                refresh();
1712            }
1713        });
1714        builder.create().show();
1715
1716    }
1717
1718    private void resendMessage(final Message message) {
1719        if (message.isFileOrImage()) {
1720            if (!(message.getConversation() instanceof Conversation)) {
1721                return;
1722            }
1723            final Conversation conversation = (Conversation) message.getConversation();
1724            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1725            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
1726                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1727                if (!message.hasFileOnRemoteHost()
1728                        && xmppConnection != null
1729                        && conversation.getMode() == Conversational.MODE_SINGLE
1730                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1731                    activity.selectPresence(conversation, () -> {
1732                        message.setCounterpart(conversation.getNextCounterpart());
1733                        activity.xmppConnectionService.resendFailedMessages(message);
1734                        new Handler().post(() -> {
1735                            int size = messageList.size();
1736                            this.binding.messagesView.setSelection(size - 1);
1737                        });
1738                    });
1739                    return;
1740                }
1741            } else if (!Compatibility.hasStoragePermission(getActivity())) {
1742                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
1743                return;
1744            } else {
1745                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1746                message.setDeleted(true);
1747                activity.xmppConnectionService.updateMessage(message, false);
1748                activity.onConversationsListItemUpdated();
1749                refresh();
1750                return;
1751            }
1752        }
1753        activity.xmppConnectionService.resendFailedMessages(message);
1754        new Handler().post(() -> {
1755            int size = messageList.size();
1756            this.binding.messagesView.setSelection(size - 1);
1757        });
1758    }
1759
1760    private void cancelTransmission(Message message) {
1761        Transferable transferable = message.getTransferable();
1762        if (transferable != null) {
1763            transferable.cancel();
1764        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1765            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1766        }
1767    }
1768
1769    private void retryDecryption(Message message) {
1770        message.setEncryption(Message.ENCRYPTION_PGP);
1771        activity.onConversationsListItemUpdated();
1772        refresh();
1773        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1774    }
1775
1776    public void privateMessageWith(final Jid counterpart) {
1777        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
1778            activity.xmppConnectionService.sendChatState(conversation);
1779        }
1780        this.binding.textinput.setText("");
1781        this.conversation.setNextCounterpart(counterpart);
1782        updateChatMsgHint();
1783        updateSendButton();
1784        updateEditablity();
1785    }
1786
1787    private void correctMessage(Message message) {
1788        while (message.mergeable(message.next())) {
1789            message = message.next();
1790        }
1791        this.conversation.setCorrectingMessage(message);
1792        final Editable editable = binding.textinput.getText();
1793        this.conversation.setDraftMessage(editable.toString());
1794        this.binding.textinput.setText("");
1795        this.binding.textinput.append(message.getBody());
1796
1797    }
1798
1799    private void highlightInConference(String nick) {
1800        final Editable editable = this.binding.textinput.getText();
1801        String oldString = editable.toString().trim();
1802        final int pos = this.binding.textinput.getSelectionStart();
1803        if (oldString.isEmpty() || pos == 0) {
1804            editable.insert(0, nick + ": ");
1805        } else {
1806            final char before = editable.charAt(pos - 1);
1807            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1808            if (before == '\n') {
1809                editable.insert(pos, nick + ": ");
1810            } else {
1811                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1812                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1813                        editable.insert(pos - 2, ", " + nick);
1814                        return;
1815                    }
1816                }
1817                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1818                if (Character.isWhitespace(after)) {
1819                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1820                }
1821            }
1822        }
1823    }
1824
1825    @Override
1826    public void startActivityForResult(Intent intent, int requestCode) {
1827        final Activity activity = getActivity();
1828        if (activity instanceof ConversationsActivity) {
1829            ((ConversationsActivity) activity).clearPendingViewIntent();
1830        }
1831        super.startActivityForResult(intent, requestCode);
1832    }
1833
1834    @Override
1835    public void onSaveInstanceState(Bundle outState) {
1836        super.onSaveInstanceState(outState);
1837        if (conversation != null) {
1838            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1839            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1840            final Uri uri = pendingTakePhotoUri.peek();
1841            if (uri != null) {
1842                outState.putString(STATE_PHOTO_URI, uri.toString());
1843            }
1844            final ScrollState scrollState = getScrollPosition();
1845            if (scrollState != null) {
1846                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1847            }
1848            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1849            if (attachments.size() > 0) {
1850                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1851            }
1852        }
1853    }
1854
1855    @Override
1856    public void onActivityCreated(Bundle savedInstanceState) {
1857        super.onActivityCreated(savedInstanceState);
1858        if (savedInstanceState == null) {
1859            return;
1860        }
1861        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1862        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1863        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1864        if (uuid != null) {
1865            QuickLoader.set(uuid);
1866            this.pendingConversationsUuid.push(uuid);
1867            if (attachments != null && attachments.size() > 0) {
1868                this.pendingMediaPreviews.push(attachments);
1869            }
1870            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1871            if (takePhotoUri != null) {
1872                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1873            }
1874            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1875        }
1876    }
1877
1878    @Override
1879    public void onStart() {
1880        super.onStart();
1881        if (this.reInitRequiredOnStart && this.conversation != null) {
1882            final Bundle extras = pendingExtras.pop();
1883            reInit(this.conversation, extras != null);
1884            if (extras != null) {
1885                processExtras(extras);
1886            }
1887        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
1888            final String uuid = pendingConversationsUuid.pop();
1889            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
1890            if (uuid != null) {
1891                findAndReInitByUuidOrArchive(uuid);
1892            }
1893        }
1894    }
1895
1896    @Override
1897    public void onStop() {
1898        super.onStop();
1899        final Activity activity = getActivity();
1900        messageListAdapter.unregisterListenerInAudioPlayer();
1901        if (activity == null || !activity.isChangingConfigurations()) {
1902            hideSoftKeyboard(activity);
1903            messageListAdapter.stopAudioPlayer();
1904        }
1905        if (this.conversation != null) {
1906            final String msg = this.binding.textinput.getText().toString();
1907            storeNextMessage(msg);
1908            updateChatState(this.conversation, msg);
1909            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
1910        }
1911        this.reInitRequiredOnStart = true;
1912    }
1913
1914    private void updateChatState(final Conversation conversation, final String msg) {
1915        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
1916        Account.State status = conversation.getAccount().getStatus();
1917        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
1918            activity.xmppConnectionService.sendChatState(conversation);
1919        }
1920    }
1921
1922    private void saveMessageDraftStopAudioPlayer() {
1923        final Conversation previousConversation = this.conversation;
1924        if (this.activity == null || this.binding == null || previousConversation == null) {
1925            return;
1926        }
1927        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
1928        final String msg = this.binding.textinput.getText().toString();
1929        storeNextMessage(msg);
1930        updateChatState(this.conversation, msg);
1931        messageListAdapter.stopAudioPlayer();
1932        mediaPreviewAdapter.clearPreviews();
1933        toggleInputMethod();
1934    }
1935
1936    public void reInit(Conversation conversation, Bundle extras) {
1937        QuickLoader.set(conversation.getUuid());
1938        this.saveMessageDraftStopAudioPlayer();
1939        this.clearPending();
1940        if (this.reInit(conversation, extras != null)) {
1941            if (extras != null) {
1942                processExtras(extras);
1943            }
1944            this.reInitRequiredOnStart = false;
1945        } else {
1946            this.reInitRequiredOnStart = true;
1947            pendingExtras.push(extras);
1948        }
1949        resetUnreadMessagesCount();
1950    }
1951
1952    private void reInit(Conversation conversation) {
1953        reInit(conversation, false);
1954    }
1955
1956    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
1957        if (conversation == null) {
1958            return false;
1959        }
1960        this.conversation = conversation;
1961        //once we set the conversation all is good and it will automatically do the right thing in onStart()
1962        if (this.activity == null || this.binding == null) {
1963            return false;
1964        }
1965
1966        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
1967            activity.onConversationArchived(this.conversation);
1968            return false;
1969        }
1970
1971        stopScrolling();
1972        Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
1973
1974        if (this.conversation.isRead() && hasExtras) {
1975            Log.d(Config.LOGTAG, "trimming conversation");
1976            this.conversation.trim();
1977        }
1978
1979        setupIme();
1980
1981        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
1982
1983        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
1984        this.binding.textinput.setKeyboardListener(null);
1985        this.binding.textinput.setText("");
1986        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
1987        if (participating) {
1988            this.binding.textinput.append(this.conversation.getNextMessage());
1989        }
1990        this.binding.textinput.setKeyboardListener(this);
1991        messageListAdapter.updatePreferences();
1992        refresh(false);
1993        this.conversation.messagesLoaded.set(true);
1994        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
1995
1996        if (hasExtras || scrolledToBottomAndNoPending) {
1997            resetUnreadMessagesCount();
1998            synchronized (this.messageList) {
1999                Log.d(Config.LOGTAG, "jump to first unread message");
2000                final Message first = conversation.getFirstUnreadMessage();
2001                final int bottom = Math.max(0, this.messageList.size() - 1);
2002                final int pos;
2003                final boolean jumpToBottom;
2004                if (first == null) {
2005                    pos = bottom;
2006                    jumpToBottom = true;
2007                } else {
2008                    int i = getIndexOf(first.getUuid(), this.messageList);
2009                    pos = i < 0 ? bottom : i;
2010                    jumpToBottom = false;
2011                }
2012                setSelection(pos, jumpToBottom);
2013            }
2014        }
2015
2016
2017        this.binding.messagesView.post(this::fireReadEvent);
2018        //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
2019        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
2020        return true;
2021    }
2022
2023    private void resetUnreadMessagesCount() {
2024        lastMessageUuid = null;
2025        hideUnreadMessagesCount();
2026    }
2027
2028    private void hideUnreadMessagesCount() {
2029        if (this.binding == null) {
2030            return;
2031        }
2032        this.binding.scrollToBottomButton.setEnabled(false);
2033        this.binding.scrollToBottomButton.hide();
2034        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2035    }
2036
2037    private void setSelection(int pos, boolean jumpToBottom) {
2038        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2039        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2040        this.binding.messagesView.post(this::fireReadEvent);
2041    }
2042
2043
2044    private boolean scrolledToBottom() {
2045        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2046    }
2047
2048    private void processExtras(Bundle extras) {
2049        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2050        final String text = extras.getString(Intent.EXTRA_TEXT);
2051        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2052        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2053        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2054        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2055        final List<Uri> uris = extractUris(extras);
2056        if (uris != null && uris.size() > 0) {
2057            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2058                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2059            } else {
2060                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2061                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2062            }
2063            toggleInputMethod();
2064            return;
2065        }
2066        if (nick != null) {
2067            if (pm) {
2068                Jid jid = conversation.getJid();
2069                try {
2070                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2071                    privateMessageWith(next);
2072                } catch (final IllegalArgumentException ignored) {
2073                    //do nothing
2074                }
2075            } else {
2076                final MucOptions mucOptions = conversation.getMucOptions();
2077                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2078                    highlightInConference(nick);
2079                }
2080            }
2081        } else {
2082            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2083                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2084                toggleInputMethod();
2085                return;
2086            } else if (text != null && asQuote) {
2087                quoteText(text);
2088            } else {
2089                appendText(text, doNotAppend);
2090            }
2091        }
2092        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2093        if (message != null) {
2094            startDownloadable(message);
2095        }
2096    }
2097
2098    private List<Uri> extractUris(Bundle extras) {
2099        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2100        if (uris != null) {
2101            return uris;
2102        }
2103        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2104        if (uri != null) {
2105            return Collections.singletonList(uri);
2106        } else {
2107            return null;
2108        }
2109    }
2110
2111    private List<Uri> cleanUris(List<Uri> uris) {
2112        Iterator<Uri> iterator = uris.iterator();
2113        while (iterator.hasNext()) {
2114            final Uri uri = iterator.next();
2115            if (FileBackend.weOwnFile(getActivity(), uri)) {
2116                iterator.remove();
2117                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2118            }
2119        }
2120        return uris;
2121    }
2122
2123    private boolean showBlockSubmenu(View view) {
2124        final Jid jid = conversation.getJid();
2125        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2126        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2127        popupMenu.inflate(R.menu.block);
2128        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2129        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2130        popupMenu.setOnMenuItemClickListener(menuItem -> {
2131            Blockable blockable;
2132            switch (menuItem.getItemId()) {
2133                case R.id.reject:
2134                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2135                    updateSnackBar(conversation);
2136                    return true;
2137                case R.id.block_domain:
2138                    blockable = conversation.getAccount().getRoster().getContact(Jid.ofDomain(jid.getDomain()));
2139                    break;
2140                default:
2141                    blockable = conversation;
2142            }
2143            BlockContactDialog.show(activity, blockable);
2144            return true;
2145        });
2146        popupMenu.show();
2147        return true;
2148    }
2149
2150    private void updateSnackBar(final Conversation conversation) {
2151        final Account account = conversation.getAccount();
2152        final XmppConnection connection = account.getXmppConnection();
2153        final int mode = conversation.getMode();
2154        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2155        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2156            return;
2157        }
2158        if (account.getStatus() == Account.State.DISABLED) {
2159            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2160        } else if (conversation.isBlocked()) {
2161            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2162        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2163            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2164        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2165            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2166        } else if (mode == Conversation.MODE_MULTI
2167                && !conversation.getMucOptions().online()
2168                && account.getStatus() == Account.State.ONLINE) {
2169            switch (conversation.getMucOptions().getError()) {
2170                case NICK_IN_USE:
2171                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2172                    break;
2173                case NO_RESPONSE:
2174                    showSnackbar(R.string.joining_conference, 0, null);
2175                    break;
2176                case SERVER_NOT_FOUND:
2177                    if (conversation.receivedMessagesCount() > 0) {
2178                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2179                    } else {
2180                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2181                    }
2182                    break;
2183                case REMOTE_SERVER_TIMEOUT:
2184                    if (conversation.receivedMessagesCount() > 0) {
2185                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2186                    } else {
2187                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2188                    }
2189                    break;
2190                case PASSWORD_REQUIRED:
2191                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2192                    break;
2193                case BANNED:
2194                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2195                    break;
2196                case MEMBERS_ONLY:
2197                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2198                    break;
2199                case RESOURCE_CONSTRAINT:
2200                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2201                    break;
2202                case KICKED:
2203                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2204                    break;
2205                case UNKNOWN:
2206                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2207                    break;
2208                case INVALID_NICK:
2209                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2210                case SHUTDOWN:
2211                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2212                    break;
2213                case DESTROYED:
2214                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2215                    break;
2216                case NON_ANONYMOUS:
2217                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2218                    break;
2219                default:
2220                    hideSnackbar();
2221                    break;
2222            }
2223        } else if (account.hasPendingPgpIntent(conversation)) {
2224            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2225        } else if (connection != null
2226                && connection.getFeatures().blocking()
2227                && conversation.countMessages() != 0
2228                && !conversation.isBlocked()
2229                && conversation.isWithStranger()) {
2230            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2231        } else {
2232            hideSnackbar();
2233        }
2234    }
2235
2236    @Override
2237    public void refresh() {
2238        if (this.binding == null) {
2239            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2240            return;
2241        }
2242        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2243            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2244                activity.onConversationArchived(this.conversation);
2245                return;
2246            }
2247        }
2248        this.refresh(true);
2249    }
2250
2251    private void refresh(boolean notifyConversationRead) {
2252        synchronized (this.messageList) {
2253            if (this.conversation != null) {
2254                conversation.populateWithMessages(this.messageList);
2255                updateSnackBar(conversation);
2256                updateStatusMessages();
2257                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2258                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2259                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2260                }
2261                this.messageListAdapter.notifyDataSetChanged();
2262                updateChatMsgHint();
2263                if (notifyConversationRead && activity != null) {
2264                    binding.messagesView.post(this::fireReadEvent);
2265                }
2266                updateSendButton();
2267                updateEditablity();
2268                activity.invalidateOptionsMenu();
2269            }
2270        }
2271    }
2272
2273    protected void messageSent() {
2274        mSendingPgpMessage.set(false);
2275        this.binding.textinput.setText("");
2276        if (conversation.setCorrectingMessage(null)) {
2277            this.binding.textinput.append(conversation.getDraftMessage());
2278            conversation.setDraftMessage(null);
2279        }
2280        storeNextMessage();
2281        updateChatMsgHint();
2282        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2283        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2284        if (prefScrollToBottom || scrolledToBottom()) {
2285            new Handler().post(() -> {
2286                int size = messageList.size();
2287                this.binding.messagesView.setSelection(size - 1);
2288            });
2289        }
2290    }
2291
2292    private boolean storeNextMessage() {
2293        return storeNextMessage(this.binding.textinput.getText().toString());
2294    }
2295
2296    private boolean storeNextMessage(String msg) {
2297        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2298        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2299            this.activity.xmppConnectionService.updateConversation(this.conversation);
2300            return true;
2301        }
2302        return false;
2303    }
2304
2305    public void doneSendingPgpMessage() {
2306        mSendingPgpMessage.set(false);
2307    }
2308
2309    public long getMaxHttpUploadSize(Conversation conversation) {
2310        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2311        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2312    }
2313
2314    private void updateEditablity() {
2315        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2316        this.binding.textinput.setFocusable(canWrite);
2317        this.binding.textinput.setFocusableInTouchMode(canWrite);
2318        this.binding.textSendButton.setEnabled(canWrite);
2319        this.binding.textinput.setCursorVisible(canWrite);
2320        this.binding.textinput.setEnabled(canWrite);
2321    }
2322
2323    public void updateSendButton() {
2324        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2325        final Conversation c = this.conversation;
2326        final Presence.Status status;
2327        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2328        final SendButtonAction action;
2329        if (hasAttachments) {
2330            action = SendButtonAction.TEXT;
2331        } else {
2332            action = SendButtonTool.getAction(getActivity(), c, text);
2333        }
2334        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2335            if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2336                status = Presence.Status.OFFLINE;
2337            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2338                status = c.getContact().getShownStatus();
2339            } else {
2340                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2341            }
2342        } else {
2343            status = Presence.Status.OFFLINE;
2344        }
2345        this.binding.textSendButton.setTag(action);
2346        final Activity activity = getActivity();
2347        if (activity != null) {
2348            this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(activity, action, status));
2349        }
2350    }
2351
2352    protected void updateStatusMessages() {
2353        DateSeparator.addAll(this.messageList);
2354        if (showLoadMoreMessages(conversation)) {
2355            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2356        }
2357        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2358            ChatState state = conversation.getIncomingChatState();
2359            if (state == ChatState.COMPOSING) {
2360                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2361            } else if (state == ChatState.PAUSED) {
2362                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2363            } else {
2364                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2365                    final Message message = this.messageList.get(i);
2366                    if (message.getType() != Message.TYPE_STATUS) {
2367                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2368                            return;
2369                        } else {
2370                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2371                                this.messageList.add(i + 1,
2372                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2373                                return;
2374                            }
2375                        }
2376                    }
2377                }
2378            }
2379        } else {
2380            final MucOptions mucOptions = conversation.getMucOptions();
2381            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2382            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2383            ChatState state = ChatState.COMPOSING;
2384            List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2385            if (users.size() == 0) {
2386                state = ChatState.PAUSED;
2387                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2388            }
2389            if (mucOptions.isPrivateAndNonAnonymous()) {
2390                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2391                    final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2392                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2393                    for (ReadByMarker marker : markersForMessage) {
2394                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2395                            addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2396                            MucOptions.User user = mucOptions.findUser(marker);
2397                            if (user != null && !users.contains(user)) {
2398                                shownMarkers.add(user);
2399                            }
2400                        }
2401                    }
2402                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2403                    final Message statusMessage;
2404                    final int size = shownMarkers.size();
2405                    if (size > 1) {
2406                        final String body;
2407                        if (size <= 4) {
2408                            body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2409                        } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2410                            body = getString(R.string.everyone_has_read_up_to_this_point);
2411                        } else {
2412                            body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2413                        }
2414                        statusMessage = Message.createStatusMessage(conversation, body);
2415                        statusMessage.setCounterparts(shownMarkers);
2416                    } else if (size == 1) {
2417                        statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2418                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2419                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2420                    } else {
2421                        statusMessage = null;
2422                    }
2423                    if (statusMessage != null) {
2424                        this.messageList.add(i + 1, statusMessage);
2425                    }
2426                    addedMarkers.add(markerForSender);
2427                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2428                        break;
2429                    }
2430                }
2431            }
2432            if (users.size() > 0) {
2433                Message statusMessage;
2434                if (users.size() == 1) {
2435                    MucOptions.User user = users.get(0);
2436                    int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2437                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2438                    statusMessage.setTrueCounterpart(user.getRealJid());
2439                    statusMessage.setCounterpart(user.getFullJid());
2440                } else {
2441                    int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2442                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2443                    statusMessage.setCounterparts(users);
2444                }
2445                this.messageList.add(statusMessage);
2446            }
2447
2448        }
2449    }
2450
2451    private void stopScrolling() {
2452        long now = SystemClock.uptimeMillis();
2453        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2454        binding.messagesView.dispatchTouchEvent(cancel);
2455    }
2456
2457    private boolean showLoadMoreMessages(final Conversation c) {
2458        if (activity == null || activity.xmppConnectionService == null) {
2459            return false;
2460        }
2461        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2462        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2463        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2464    }
2465
2466    private boolean hasMamSupport(final Conversation c) {
2467        if (c.getMode() == Conversation.MODE_SINGLE) {
2468            final XmppConnection connection = c.getAccount().getXmppConnection();
2469            return connection != null && connection.getFeatures().mam();
2470        } else {
2471            return c.getMucOptions().mamSupport();
2472        }
2473    }
2474
2475    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2476        showSnackbar(message, action, clickListener, null);
2477    }
2478
2479    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2480        this.binding.snackbar.setVisibility(View.VISIBLE);
2481        this.binding.snackbar.setOnClickListener(null);
2482        this.binding.snackbarMessage.setText(message);
2483        this.binding.snackbarMessage.setOnClickListener(null);
2484        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2485        if (action != 0) {
2486            this.binding.snackbarAction.setText(action);
2487        }
2488        this.binding.snackbarAction.setOnClickListener(clickListener);
2489        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2490    }
2491
2492    protected void hideSnackbar() {
2493        this.binding.snackbar.setVisibility(View.GONE);
2494    }
2495
2496    protected void sendMessage(Message message) {
2497        activity.xmppConnectionService.sendMessage(message);
2498        messageSent();
2499    }
2500
2501    protected void sendPgpMessage(final Message message) {
2502        final XmppConnectionService xmppService = activity.xmppConnectionService;
2503        final Contact contact = message.getConversation().getContact();
2504        if (!activity.hasPgp()) {
2505            activity.showInstallPgpDialog();
2506            return;
2507        }
2508        if (conversation.getAccount().getPgpSignature() == null) {
2509            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2510            return;
2511        }
2512        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2513            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2514        }
2515        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2516            if (contact.getPgpKeyId() != 0) {
2517                xmppService.getPgpEngine().hasKey(contact,
2518                        new UiCallback<Contact>() {
2519
2520                            @Override
2521                            public void userInputRequired(PendingIntent pi, Contact contact) {
2522                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2523                            }
2524
2525                            @Override
2526                            public void success(Contact contact) {
2527                                encryptTextMessage(message);
2528                            }
2529
2530                            @Override
2531                            public void error(int error, Contact contact) {
2532                                activity.runOnUiThread(() -> Toast.makeText(activity,
2533                                        R.string.unable_to_connect_to_keychain,
2534                                        Toast.LENGTH_SHORT
2535                                ).show());
2536                                mSendingPgpMessage.set(false);
2537                            }
2538                        });
2539
2540            } else {
2541                showNoPGPKeyDialog(false, (dialog, which) -> {
2542                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2543                    xmppService.updateConversation(conversation);
2544                    message.setEncryption(Message.ENCRYPTION_NONE);
2545                    xmppService.sendMessage(message);
2546                    messageSent();
2547                });
2548            }
2549        } else {
2550            if (conversation.getMucOptions().pgpKeysInUse()) {
2551                if (!conversation.getMucOptions().everybodyHasKeys()) {
2552                    Toast warning = Toast
2553                            .makeText(getActivity(),
2554                                    R.string.missing_public_keys,
2555                                    Toast.LENGTH_LONG);
2556                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2557                    warning.show();
2558                }
2559                encryptTextMessage(message);
2560            } else {
2561                showNoPGPKeyDialog(true, (dialog, which) -> {
2562                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2563                    message.setEncryption(Message.ENCRYPTION_NONE);
2564                    xmppService.updateConversation(conversation);
2565                    xmppService.sendMessage(message);
2566                    messageSent();
2567                });
2568            }
2569        }
2570    }
2571
2572    public void encryptTextMessage(Message message) {
2573        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2574                new UiCallback<Message>() {
2575
2576                    @Override
2577                    public void userInputRequired(PendingIntent pi, Message message) {
2578                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2579                    }
2580
2581                    @Override
2582                    public void success(Message message) {
2583                        //TODO the following two call can be made before the callback
2584                        getActivity().runOnUiThread(() -> messageSent());
2585                    }
2586
2587                    @Override
2588                    public void error(final int error, Message message) {
2589                        getActivity().runOnUiThread(() -> {
2590                            doneSendingPgpMessage();
2591                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2592                        });
2593
2594                    }
2595                });
2596    }
2597
2598    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2599        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2600        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2601        if (plural) {
2602            builder.setTitle(getString(R.string.no_pgp_keys));
2603            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2604        } else {
2605            builder.setTitle(getString(R.string.no_pgp_key));
2606            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2607        }
2608        builder.setNegativeButton(getString(R.string.cancel), null);
2609        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2610        builder.create().show();
2611    }
2612
2613    public void appendText(String text, final boolean doNotAppend) {
2614        if (text == null) {
2615            return;
2616        }
2617        final Editable editable = this.binding.textinput.getText();
2618        String previous = editable == null ? "" : editable.toString();
2619        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2620            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2621            return;
2622        }
2623        if (UIHelper.isLastLineQuote(previous)) {
2624            text = '\n' + text;
2625        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2626            text = " " + text;
2627        }
2628        this.binding.textinput.append(text);
2629    }
2630
2631    @Override
2632    public boolean onEnterPressed() {
2633        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2634        final boolean enterIsSend = p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2635        if (enterIsSend) {
2636            sendMessage();
2637            return true;
2638        } else {
2639            return false;
2640        }
2641    }
2642
2643    @Override
2644    public void onTypingStarted() {
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(ChatState.COMPOSING)) {
2651            service.sendChatState(conversation);
2652        }
2653        runOnUiThread(this::updateSendButton);
2654    }
2655
2656    @Override
2657    public void onTypingStopped() {
2658        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2659        if (service == null) {
2660            return;
2661        }
2662        Account.State status = conversation.getAccount().getStatus();
2663        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2664            service.sendChatState(conversation);
2665        }
2666    }
2667
2668    @Override
2669    public void onTextDeleted() {
2670        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2671        if (service == null) {
2672            return;
2673        }
2674        Account.State status = conversation.getAccount().getStatus();
2675        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2676            service.sendChatState(conversation);
2677        }
2678        if (storeNextMessage()) {
2679            runOnUiThread(() -> {
2680                if (activity == null) {
2681                    return;
2682                }
2683                activity.onConversationsListItemUpdated();
2684            });
2685        }
2686        runOnUiThread(this::updateSendButton);
2687    }
2688
2689    @Override
2690    public void onTextChanged() {
2691        if (conversation != null && conversation.getCorrectingMessage() != null) {
2692            runOnUiThread(this::updateSendButton);
2693        }
2694    }
2695
2696    @Override
2697    public boolean onTabPressed(boolean repeated) {
2698        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2699            return false;
2700        }
2701        if (repeated) {
2702            completionIndex++;
2703        } else {
2704            lastCompletionLength = 0;
2705            completionIndex = 0;
2706            final String content = this.binding.textinput.getText().toString();
2707            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2708            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2709            firstWord = start == 0;
2710            incomplete = content.substring(start, lastCompletionCursor);
2711        }
2712        List<String> completions = new ArrayList<>();
2713        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2714            String name = user.getName();
2715            if (name != null && name.startsWith(incomplete)) {
2716                completions.add(name + (firstWord ? ": " : " "));
2717            }
2718        }
2719        Collections.sort(completions);
2720        if (completions.size() > completionIndex) {
2721            String completion = completions.get(completionIndex).substring(incomplete.length());
2722            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2723            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2724            lastCompletionLength = completion.length();
2725        } else {
2726            completionIndex = -1;
2727            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2728            lastCompletionLength = 0;
2729        }
2730        return true;
2731    }
2732
2733    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2734        try {
2735            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2736        } catch (final SendIntentException ignored) {
2737        }
2738    }
2739
2740    @Override
2741    public void onBackendConnected() {
2742        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2743        String uuid = pendingConversationsUuid.pop();
2744        if (uuid != null) {
2745            if (!findAndReInitByUuidOrArchive(uuid)) {
2746                return;
2747            }
2748        } else {
2749            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2750                clearPending();
2751                activity.onConversationArchived(conversation);
2752                return;
2753            }
2754        }
2755        ActivityResult activityResult = postponedActivityResult.pop();
2756        if (activityResult != null) {
2757            handleActivityResult(activityResult);
2758        }
2759        clearPending();
2760    }
2761
2762    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2763        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2764        if (conversation == null) {
2765            clearPending();
2766            activity.onConversationArchived(null);
2767            return false;
2768        }
2769        reInit(conversation);
2770        ScrollState scrollState = pendingScrollState.pop();
2771        String lastMessageUuid = pendingLastMessageUuid.pop();
2772        List<Attachment> attachments = pendingMediaPreviews.pop();
2773        if (scrollState != null) {
2774            setScrollPosition(scrollState, lastMessageUuid);
2775        }
2776        if (attachments != null && attachments.size() > 0) {
2777            Log.d(Config.LOGTAG, "had attachments on restore");
2778            mediaPreviewAdapter.addMediaPreviews(attachments);
2779            toggleInputMethod();
2780        }
2781        return true;
2782    }
2783
2784    private void clearPending() {
2785        if (postponedActivityResult.clear()) {
2786            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2787        }
2788        if (pendingScrollState.clear()) {
2789            Log.e(Config.LOGTAG, "cleared scroll state");
2790        }
2791        if (pendingTakePhotoUri.clear()) {
2792            Log.e(Config.LOGTAG, "cleared pending photo uri");
2793        }
2794        if (pendingConversationsUuid.clear()) {
2795            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
2796        }
2797        if (pendingMediaPreviews.clear()) {
2798            Log.e(Config.LOGTAG, "cleared pending media previews");
2799        }
2800    }
2801
2802    public Conversation getConversation() {
2803        return conversation;
2804    }
2805
2806    @Override
2807    public void onContactPictureLongClicked(View v, final Message message) {
2808        final String fingerprint;
2809        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2810            fingerprint = "pgp";
2811        } else {
2812            fingerprint = message.getFingerprint();
2813        }
2814        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2815        final Contact contact = message.getContact();
2816        if (message.getStatus() <= Message.STATUS_RECEIVED && (contact == null || !contact.isSelf())) {
2817            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2818                final Jid cp = message.getCounterpart();
2819                if (cp == null || cp.isBareJid()) {
2820                    return;
2821                }
2822                final Jid tcp = message.getTrueCounterpart();
2823                final User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2824                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2825                popupMenu.inflate(R.menu.muc_details_context);
2826                final Menu menu = popupMenu.getMenu();
2827                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2828                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, activity, fingerprint));
2829            } else {
2830                popupMenu.inflate(R.menu.one_on_one_context);
2831                popupMenu.setOnMenuItemClickListener(item -> {
2832                    switch (item.getItemId()) {
2833                        case R.id.action_contact_details:
2834                            activity.switchToContactDetails(message.getContact(), fingerprint);
2835                            break;
2836                        case R.id.action_show_qr_code:
2837                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
2838                            break;
2839                    }
2840                    return true;
2841                });
2842            }
2843        } else {
2844            popupMenu.inflate(R.menu.account_context);
2845            final Menu menu = popupMenu.getMenu();
2846            menu.findItem(R.id.action_manage_accounts).setVisible(QuickConversationsService.isConversations());
2847            popupMenu.setOnMenuItemClickListener(item -> {
2848                switch (item.getItemId()) {
2849                    case R.id.action_show_qr_code:
2850                        activity.showQrCode(conversation.getAccount().getShareableUri());
2851                        break;
2852                    case R.id.action_account_details:
2853                        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2854                        break;
2855                    case R.id.action_manage_accounts:
2856                        AccountUtils.launchManageAccounts(activity);
2857                        break;
2858                }
2859                return true;
2860            });
2861        }
2862        popupMenu.show();
2863    }
2864
2865    @Override
2866    public void onContactPictureClicked(Message message) {
2867        String fingerprint;
2868        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2869            fingerprint = "pgp";
2870        } else {
2871            fingerprint = message.getFingerprint();
2872        }
2873        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
2874        if (received) {
2875            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
2876                Jid tcp = message.getTrueCounterpart();
2877                Jid user = message.getCounterpart();
2878                if (user != null && !user.isBareJid()) {
2879                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
2880                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
2881                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
2882                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
2883                        }
2884                        highlightInConference(user.getResource());
2885                    } else {
2886                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
2887                    }
2888                }
2889                return;
2890            } else {
2891                if (!message.getContact().isSelf()) {
2892                    activity.switchToContactDetails(message.getContact(), fingerprint);
2893                    return;
2894                }
2895            }
2896        }
2897        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2898    }
2899}