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.AppRTCAudioManager;
  86import eu.siacs.conversations.services.MessageArchiveService;
  87import eu.siacs.conversations.services.QuickConversationsService;
  88import eu.siacs.conversations.services.XmppConnectionService;
  89import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  90import eu.siacs.conversations.ui.adapter.MessageAdapter;
  91import eu.siacs.conversations.ui.util.ActivityResult;
  92import eu.siacs.conversations.ui.util.Attachment;
  93import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  94import eu.siacs.conversations.ui.util.DateSeparator;
  95import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
  96import eu.siacs.conversations.ui.util.ListViewUtils;
  97import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
  98import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
  99import eu.siacs.conversations.ui.util.PendingItem;
 100import eu.siacs.conversations.ui.util.PresenceSelector;
 101import eu.siacs.conversations.ui.util.ScrollState;
 102import eu.siacs.conversations.ui.util.SendButtonAction;
 103import eu.siacs.conversations.ui.util.SendButtonTool;
 104import eu.siacs.conversations.ui.util.ShareUtil;
 105import eu.siacs.conversations.ui.util.ViewUtil;
 106import eu.siacs.conversations.ui.widget.EditMessage;
 107import eu.siacs.conversations.utils.AccountUtils;
 108import eu.siacs.conversations.utils.Compatibility;
 109import eu.siacs.conversations.utils.GeoHelper;
 110import eu.siacs.conversations.utils.MessageUtils;
 111import eu.siacs.conversations.utils.NickValidityChecker;
 112import eu.siacs.conversations.utils.Patterns;
 113import eu.siacs.conversations.utils.PermissionUtils;
 114import eu.siacs.conversations.utils.QuickLoader;
 115import eu.siacs.conversations.utils.StylingHelper;
 116import eu.siacs.conversations.utils.TimeframeUtils;
 117import eu.siacs.conversations.utils.UIHelper;
 118import eu.siacs.conversations.xmpp.XmppConnection;
 119import eu.siacs.conversations.xmpp.chatstate.ChatState;
 120import eu.siacs.conversations.xmpp.jingle.JingleFileTransferConnection;
 121import eu.siacs.conversations.xmpp.jingle.RtpCapability;
 122import rocks.xmpp.addr.Jid;
 123
 124import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
 125import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
 126import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
 127import static eu.siacs.conversations.utils.PermissionUtils.allGranted;
 128import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
 129import static eu.siacs.conversations.utils.PermissionUtils.writeGranted;
 130
 131
 132public class ConversationFragment extends XmppFragment implements EditMessage.KeyboardListener, MessageAdapter.OnContactPictureLongClicked, MessageAdapter.OnContactPictureClicked {
 133
 134
 135    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 136    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 137    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 138    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 139    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 140    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 141    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 142    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 143    public static final int REQUEST_START_AUDIO_CALL = 0x213;
 144    public static final int REQUEST_START_VIDEO_CALL = 0x214;
 145    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 146    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 147    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 148    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 149    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 150    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 151    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 152
 153    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 154    public static final String STATE_CONVERSATION_UUID = ConversationFragment.class.getName() + ".uuid";
 155    public static final String STATE_SCROLL_POSITION = ConversationFragment.class.getName() + ".scroll_position";
 156    public static final String STATE_PHOTO_URI = ConversationFragment.class.getName() + ".media_previews";
 157    public static final String STATE_MEDIA_PREVIEWS = ConversationFragment.class.getName() + ".take_photo_uri";
 158    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 159
 160    private final List<Message> messageList = new ArrayList<>();
 161    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 162    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 163    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 164    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 165    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 166    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 167    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 168    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 169    public Uri mPendingEditorContent = null;
 170    protected MessageAdapter messageListAdapter;
 171    private MediaPreviewAdapter mediaPreviewAdapter;
 172    private String lastMessageUuid = null;
 173    private Conversation conversation;
 174    private FragmentConversationBinding binding;
 175    private Toast messageLoaderToast;
 176    private ConversationsActivity activity;
 177    private boolean reInitRequiredOnStart = true;
 178    private OnClickListener clickToMuc = new OnClickListener() {
 179
 180        @Override
 181        public void onClick(View v) {
 182            Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 183            intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 184            intent.putExtra("uuid", conversation.getUuid());
 185            startActivity(intent);
 186        }
 187    };
 188    private OnClickListener leaveMuc = new OnClickListener() {
 189
 190        @Override
 191        public void onClick(View v) {
 192            activity.xmppConnectionService.archiveConversation(conversation);
 193        }
 194    };
 195    private OnClickListener joinMuc = new OnClickListener() {
 196
 197        @Override
 198        public void onClick(View v) {
 199            activity.xmppConnectionService.joinMuc(conversation);
 200        }
 201    };
 202
 203    private OnClickListener acceptJoin = new OnClickListener() {
 204        @Override
 205        public void onClick(View v) {
 206            conversation.setAttribute("accept_non_anonymous", true);
 207            activity.xmppConnectionService.updateConversation(conversation);
 208            activity.xmppConnectionService.joinMuc(conversation);
 209        }
 210    };
 211
 212    private OnClickListener enterPassword = new OnClickListener() {
 213
 214        @Override
 215        public void onClick(View v) {
 216            MucOptions muc = conversation.getMucOptions();
 217            String password = muc.getPassword();
 218            if (password == null) {
 219                password = "";
 220            }
 221            activity.quickPasswordEdit(password, value -> {
 222                activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 223                return null;
 224            });
 225        }
 226    };
 227    private OnScrollListener mOnScrollListener = new OnScrollListener() {
 228
 229        @Override
 230        public void onScrollStateChanged(AbsListView view, int scrollState) {
 231            if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 232                fireReadEvent();
 233            }
 234        }
 235
 236        @Override
 237        public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 238            toggleScrollDownButton(view);
 239            synchronized (ConversationFragment.this.messageList) {
 240                if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 241                    long timestamp;
 242                    if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 243                        timestamp = messageList.get(1).getTimeSent();
 244                    } else {
 245                        timestamp = messageList.get(0).getTimeSent();
 246                    }
 247                    activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 248                        @Override
 249                        public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 250                            if (ConversationFragment.this.conversation != conversation) {
 251                                conversation.messagesLoaded.set(true);
 252                                return;
 253                            }
 254                            runOnUiThread(() -> {
 255                                synchronized (messageList) {
 256                                    final int oldPosition = binding.messagesView.getFirstVisiblePosition();
 257                                    Message message = null;
 258                                    int childPos;
 259                                    for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 260                                        message = messageList.get(oldPosition + childPos);
 261                                        if (message.getType() != Message.TYPE_STATUS) {
 262                                            break;
 263                                        }
 264                                    }
 265                                    final String uuid = message != null ? message.getUuid() : null;
 266                                    View v = binding.messagesView.getChildAt(childPos);
 267                                    final int pxOffset = (v == null) ? 0 : v.getTop();
 268                                    ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 269                                    try {
 270                                        updateStatusMessages();
 271                                    } catch (IllegalStateException e) {
 272                                        Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 273                                    }
 274                                    messageListAdapter.notifyDataSetChanged();
 275                                    int pos = Math.max(getIndexOf(uuid, messageList), 0);
 276                                    binding.messagesView.setSelectionFromTop(pos, pxOffset);
 277                                    if (messageLoaderToast != null) {
 278                                        messageLoaderToast.cancel();
 279                                    }
 280                                    conversation.messagesLoaded.set(true);
 281                                }
 282                            });
 283                        }
 284
 285                        @Override
 286                        public void informUser(final int resId) {
 287
 288                            runOnUiThread(() -> {
 289                                if (messageLoaderToast != null) {
 290                                    messageLoaderToast.cancel();
 291                                }
 292                                if (ConversationFragment.this.conversation != conversation) {
 293                                    return;
 294                                }
 295                                messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 296                                messageLoaderToast.show();
 297                            });
 298
 299                        }
 300                    });
 301
 302                }
 303            }
 304        }
 305    };
 306    private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 307        @Override
 308        public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 309            // try to get permission to read the image, if applicable
 310            if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 311                try {
 312                    inputContentInfo.requestPermission();
 313                } catch (Exception e) {
 314                    Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 315                    Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()), Toast.LENGTH_LONG
 316                    ).show();
 317                    return false;
 318                }
 319            }
 320            if (hasPermissions(REQUEST_ADD_EDITOR_CONTENT, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 321                attachEditorContentToConversation(inputContentInfo.getContentUri());
 322            } else {
 323                mPendingEditorContent = inputContentInfo.getContentUri();
 324            }
 325            return true;
 326        }
 327    };
 328    private Message selectedMessage;
 329    private OnClickListener mEnableAccountListener = new OnClickListener() {
 330        @Override
 331        public void onClick(View v) {
 332            final Account account = conversation == null ? null : conversation.getAccount();
 333            if (account != null) {
 334                account.setOption(Account.OPTION_DISABLED, false);
 335                activity.xmppConnectionService.updateAccount(account);
 336            }
 337        }
 338    };
 339    private OnClickListener mUnblockClickListener = new OnClickListener() {
 340        @Override
 341        public void onClick(final View v) {
 342            v.post(() -> v.setVisibility(View.INVISIBLE));
 343            if (conversation.isDomainBlocked()) {
 344                BlockContactDialog.show(activity, conversation);
 345            } else {
 346                unblockConversation(conversation);
 347            }
 348        }
 349    };
 350    private OnClickListener mBlockClickListener = this::showBlockSubmenu;
 351    private OnClickListener mAddBackClickListener = new OnClickListener() {
 352
 353        @Override
 354        public void onClick(View v) {
 355            final Contact contact = conversation == null ? null : conversation.getContact();
 356            if (contact != null) {
 357                activity.xmppConnectionService.createContact(contact, true);
 358                activity.switchToContactDetails(contact);
 359            }
 360        }
 361    };
 362    private View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 363    private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 364        @Override
 365        public void onClick(View v) {
 366            final Contact contact = conversation == null ? null : conversation.getContact();
 367            if (contact != null) {
 368                activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 369                        activity.xmppConnectionService.getPresenceGenerator()
 370                                .sendPresenceUpdatesTo(contact));
 371                hideSnackbar();
 372            }
 373        }
 374    };
 375    protected OnClickListener clickToDecryptListener = new OnClickListener() {
 376
 377        @Override
 378        public void onClick(View v) {
 379            PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 380            if (pendingIntent != null) {
 381                try {
 382                    getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(),
 383                            REQUEST_DECRYPT_PGP,
 384                            null,
 385                            0,
 386                            0,
 387                            0);
 388                } catch (SendIntentException e) {
 389                    Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 390                    conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 391                }
 392            }
 393            updateSnackBar(conversation);
 394        }
 395    };
 396    private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 397    private OnEditorActionListener mEditorActionListener = (v, actionId, event) -> {
 398        if (actionId == EditorInfo.IME_ACTION_SEND) {
 399            InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 400            if (imm != null && imm.isFullscreenMode()) {
 401                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 402            }
 403            sendMessage();
 404            return true;
 405        } else {
 406            return false;
 407        }
 408    };
 409    private OnClickListener mScrollButtonListener = new OnClickListener() {
 410
 411        @Override
 412        public void onClick(View v) {
 413            stopScrolling();
 414            setSelection(binding.messagesView.getCount() - 1, true);
 415        }
 416    };
 417    private OnClickListener mSendButtonListener = new OnClickListener() {
 418
 419        @Override
 420        public void onClick(View v) {
 421            Object tag = v.getTag();
 422            if (tag instanceof SendButtonAction) {
 423                SendButtonAction action = (SendButtonAction) tag;
 424                switch (action) {
 425                    case TAKE_PHOTO:
 426                    case RECORD_VIDEO:
 427                    case SEND_LOCATION:
 428                    case RECORD_VOICE:
 429                    case CHOOSE_PICTURE:
 430                        attachFile(action.toChoice());
 431                        break;
 432                    case CANCEL:
 433                        if (conversation != null) {
 434                            if (conversation.setCorrectingMessage(null)) {
 435                                binding.textinput.setText("");
 436                                binding.textinput.append(conversation.getDraftMessage());
 437                                conversation.setDraftMessage(null);
 438                            } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 439                                conversation.setNextCounterpart(null);
 440                                binding.textinput.setText("");
 441                            } else {
 442                                binding.textinput.setText("");
 443                            }
 444                            updateChatMsgHint();
 445                            updateSendButton();
 446                            updateEditablity();
 447                        }
 448                        break;
 449                    default:
 450                        sendMessage();
 451                }
 452            } else {
 453                sendMessage();
 454            }
 455        }
 456    };
 457    private int completionIndex = 0;
 458    private int lastCompletionLength = 0;
 459    private String incomplete;
 460    private int lastCompletionCursor;
 461    private boolean firstWord = false;
 462    private Message mPendingDownloadableMessage;
 463
 464    private static ConversationFragment findConversationFragment(Activity activity) {
 465        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 466        if (fragment instanceof ConversationFragment) {
 467            return (ConversationFragment) fragment;
 468        }
 469        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 470        if (fragment instanceof ConversationFragment) {
 471            return (ConversationFragment) fragment;
 472        }
 473        return null;
 474    }
 475
 476    public static void startStopPending(Activity activity) {
 477        ConversationFragment fragment = findConversationFragment(activity);
 478        if (fragment != null) {
 479            fragment.messageListAdapter.startStopPending();
 480        }
 481    }
 482
 483    public static void downloadFile(Activity activity, Message message) {
 484        ConversationFragment fragment = findConversationFragment(activity);
 485        if (fragment != null) {
 486            fragment.startDownloadable(message);
 487        }
 488    }
 489
 490    public static void registerPendingMessage(Activity activity, Message message) {
 491        ConversationFragment fragment = findConversationFragment(activity);
 492        if (fragment != null) {
 493            fragment.pendingMessage.push(message);
 494        }
 495    }
 496
 497    public static void openPendingMessage(Activity activity) {
 498        ConversationFragment fragment = findConversationFragment(activity);
 499        if (fragment != null) {
 500            Message message = fragment.pendingMessage.pop();
 501            if (message != null) {
 502                fragment.messageListAdapter.openDownloadable(message);
 503            }
 504        }
 505    }
 506
 507    public static Conversation getConversation(Activity activity) {
 508        return getConversation(activity, R.id.secondary_fragment);
 509    }
 510
 511    private static Conversation getConversation(Activity activity, @IdRes int res) {
 512        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 513        if (fragment != null && fragment instanceof ConversationFragment) {
 514            return ((ConversationFragment) fragment).getConversation();
 515        } else {
 516            return null;
 517        }
 518    }
 519
 520    public static ConversationFragment get(Activity activity) {
 521        FragmentManager fragmentManager = activity.getFragmentManager();
 522        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 523        if (fragment != null && fragment instanceof ConversationFragment) {
 524            return (ConversationFragment) fragment;
 525        } else {
 526            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 527            return fragment != null && fragment instanceof ConversationFragment ? (ConversationFragment) fragment : null;
 528        }
 529    }
 530
 531    public static Conversation getConversationReliable(Activity activity) {
 532        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 533        if (conversation != null) {
 534            return conversation;
 535        }
 536        return getConversation(activity, R.id.main_fragment);
 537    }
 538
 539    private static boolean scrolledToBottom(AbsListView listView) {
 540        final int count = listView.getCount();
 541        if (count == 0) {
 542            return true;
 543        } else if (listView.getLastVisiblePosition() == count - 1) {
 544            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 545            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 546        } else {
 547            return false;
 548        }
 549    }
 550
 551    private void toggleScrollDownButton() {
 552        toggleScrollDownButton(binding.messagesView);
 553    }
 554
 555    private void toggleScrollDownButton(AbsListView listView) {
 556        if (conversation == null) {
 557            return;
 558        }
 559        if (scrolledToBottom(listView)) {
 560            lastMessageUuid = null;
 561            hideUnreadMessagesCount();
 562        } else {
 563            binding.scrollToBottomButton.setEnabled(true);
 564            binding.scrollToBottomButton.show();
 565            if (lastMessageUuid == null) {
 566                lastMessageUuid = conversation.getLatestMessage().getUuid();
 567            }
 568            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 569                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 570            }
 571        }
 572    }
 573
 574    private int getIndexOf(String uuid, List<Message> messages) {
 575        if (uuid == null) {
 576            return messages.size() - 1;
 577        }
 578        for (int i = 0; i < messages.size(); ++i) {
 579            if (uuid.equals(messages.get(i).getUuid())) {
 580                return i;
 581            } else {
 582                Message next = messages.get(i);
 583                while (next != null && next.wasMergedIntoPrevious()) {
 584                    if (uuid.equals(next.getUuid())) {
 585                        return i;
 586                    }
 587                    next = next.next();
 588                }
 589
 590            }
 591        }
 592        return -1;
 593    }
 594
 595    private ScrollState getScrollPosition() {
 596        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 597        if (listView == null || listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 598            return null;
 599        } else {
 600            final int pos = listView.getFirstVisiblePosition();
 601            final View view = listView.getChildAt(0);
 602            if (view == null) {
 603                return null;
 604            } else {
 605                return new ScrollState(pos, view.getTop());
 606            }
 607        }
 608    }
 609
 610    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 611        if (scrollPosition != null) {
 612
 613            this.lastMessageUuid = lastMessageUuid;
 614            if (lastMessageUuid != null) {
 615                binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 616            }
 617            //TODO maybe this needs a 'post'
 618            this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 619            toggleScrollDownButton();
 620        }
 621    }
 622
 623    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 624        if (conversation == null) {
 625            return;
 626        }
 627        activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 628
 629            @Override
 630            public void success(Message message) {
 631
 632            }
 633
 634            @Override
 635            public void error(int errorCode, Message object) {
 636                //TODO show possible pgp error
 637            }
 638
 639            @Override
 640            public void userInputRequired(PendingIntent pi, Message object) {
 641
 642            }
 643        });
 644    }
 645
 646    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 647        if (conversation == null) {
 648            return;
 649        }
 650        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 651        prepareFileToast.show();
 652        activity.delegateUriPermissionsToService(uri);
 653        activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 654            @Override
 655            public void inform(final String text) {
 656                hidePrepareFileToast(prepareFileToast);
 657                runOnUiThread(() -> activity.replaceToast(text));
 658            }
 659
 660            @Override
 661            public void success(Message message) {
 662                runOnUiThread(() -> activity.hideToast());
 663                hidePrepareFileToast(prepareFileToast);
 664            }
 665
 666            @Override
 667            public void error(final int errorCode, Message message) {
 668                hidePrepareFileToast(prepareFileToast);
 669                runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 670
 671            }
 672
 673            @Override
 674            public void userInputRequired(PendingIntent pi, Message message) {
 675                hidePrepareFileToast(prepareFileToast);
 676            }
 677        });
 678    }
 679
 680    public void attachEditorContentToConversation(Uri uri) {
 681        mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 682        toggleInputMethod();
 683    }
 684
 685    private void attachImageToConversation(Conversation conversation, Uri uri) {
 686        if (conversation == null) {
 687            return;
 688        }
 689        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 690        prepareFileToast.show();
 691        activity.delegateUriPermissionsToService(uri);
 692        activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 693                new UiCallback<Message>() {
 694
 695                    @Override
 696                    public void userInputRequired(PendingIntent pi, Message object) {
 697                        hidePrepareFileToast(prepareFileToast);
 698                    }
 699
 700                    @Override
 701                    public void success(Message message) {
 702                        hidePrepareFileToast(prepareFileToast);
 703                    }
 704
 705                    @Override
 706                    public void error(final int error, Message message) {
 707                        hidePrepareFileToast(prepareFileToast);
 708                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 709                    }
 710                });
 711    }
 712
 713    private void hidePrepareFileToast(final Toast prepareFileToast) {
 714        if (prepareFileToast != null && activity != null) {
 715            activity.runOnUiThread(prepareFileToast::cancel);
 716        }
 717    }
 718
 719    private void sendMessage() {
 720        if (mediaPreviewAdapter.hasAttachments()) {
 721            commitAttachments();
 722            return;
 723        }
 724        final Editable text = this.binding.textinput.getText();
 725        final String body = text == null ? "" : text.toString();
 726        final Conversation conversation = this.conversation;
 727        if (body.length() == 0 || conversation == null) {
 728            return;
 729        }
 730        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 731            return;
 732        }
 733        final Message message;
 734        if (conversation.getCorrectingMessage() == null) {
 735            message = new Message(conversation, body, conversation.getNextEncryption());
 736            Message.configurePrivateMessage(message);
 737        } else {
 738            message = conversation.getCorrectingMessage();
 739            message.setBody(body);
 740            message.putEdited(message.getUuid(), message.getServerMsgId());
 741            message.setServerMsgId(null);
 742            message.setUuid(UUID.randomUUID().toString());
 743        }
 744        switch (conversation.getNextEncryption()) {
 745            case Message.ENCRYPTION_PGP:
 746                sendPgpMessage(message);
 747                break;
 748            default:
 749                sendMessage(message);
 750        }
 751    }
 752
 753    protected boolean trustKeysIfNeeded(int requestCode) {
 754        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 755        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 756        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 757        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 758        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 759        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 760        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 761        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 762        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 763            axolotlService.createSessionsIfNeeded(conversation);
 764            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 765            String[] contacts = new String[targets.size()];
 766            for (int i = 0; i < contacts.length; ++i) {
 767                contacts[i] = targets.get(i).toString();
 768            }
 769            intent.putExtra("contacts", contacts);
 770            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toString());
 771            intent.putExtra("conversation", conversation.getUuid());
 772            startActivityForResult(intent, requestCode);
 773            return true;
 774        } else {
 775            return false;
 776        }
 777    }
 778
 779    public void updateChatMsgHint() {
 780        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 781        if (conversation.getCorrectingMessage() != null) {
 782            this.binding.textInputHint.setVisibility(View.GONE);
 783            this.binding.textinput.setHint(R.string.send_corrected_message);
 784        } else if (multi && conversation.getNextCounterpart() != null) {
 785            this.binding.textinput.setHint(R.string.send_unencrypted_message);
 786            this.binding.textInputHint.setVisibility(View.VISIBLE);
 787            this.binding.textInputHint.setText(getString(
 788                    R.string.send_private_message_to,
 789                    conversation.getNextCounterpart().getResource()));
 790        } else if (multi && !conversation.getMucOptions().participating()) {
 791            this.binding.textInputHint.setVisibility(View.GONE);
 792            this.binding.textinput.setHint(R.string.you_are_not_participating);
 793        } else {
 794            this.binding.textInputHint.setVisibility(View.GONE);
 795            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 796            getActivity().invalidateOptionsMenu();
 797        }
 798    }
 799
 800    public void setupIme() {
 801        this.binding.textinput.refreshIme();
 802    }
 803
 804    private void handleActivityResult(ActivityResult activityResult) {
 805        if (activityResult.resultCode == Activity.RESULT_OK) {
 806            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 807        } else {
 808            handleNegativeActivityResult(activityResult.requestCode);
 809        }
 810    }
 811
 812    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 813        switch (requestCode) {
 814            case REQUEST_TRUST_KEYS_TEXT:
 815                sendMessage();
 816                break;
 817            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 818                commitAttachments();
 819                break;
 820            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 821                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 822                mediaPreviewAdapter.addMediaPreviews(imageUris);
 823                toggleInputMethod();
 824                break;
 825            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 826                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 827                if (takePhotoUri != null) {
 828                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 829                    toggleInputMethod();
 830                } else {
 831                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 832                }
 833                break;
 834            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 835            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 836            case ATTACHMENT_CHOICE_RECORD_VOICE:
 837                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 838                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 839                mediaPreviewAdapter.addMediaPreviews(fileUris);
 840                toggleInputMethod();
 841                break;
 842            case ATTACHMENT_CHOICE_LOCATION:
 843                double latitude = data.getDoubleExtra("latitude", 0);
 844                double longitude = data.getDoubleExtra("longitude", 0);
 845                Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 846                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 847                toggleInputMethod();
 848                break;
 849            case REQUEST_INVITE_TO_CONVERSATION:
 850                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 851                if (invite != null) {
 852                    if (invite.execute(activity)) {
 853                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 854                        activity.mToast.show();
 855                    }
 856                }
 857                break;
 858        }
 859    }
 860
 861    private void commitAttachments() {
 862        if (!hasPermissions(REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 863            return;
 864        }
 865        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 866            return;
 867        }
 868        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 869        final PresenceSelector.OnPresenceSelected callback = () -> {
 870            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 871                final Attachment attachment = i.next();
 872                if (attachment.getType() == Attachment.Type.LOCATION) {
 873                    attachLocationToConversation(conversation, attachment.getUri());
 874                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 875                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 876                    attachImageToConversation(conversation, attachment.getUri());
 877                } else {
 878                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 879                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 880                }
 881            }
 882            mediaPreviewAdapter.notifyDataSetChanged();
 883            toggleInputMethod();
 884        };
 885        if (conversation == null
 886                || conversation.getMode() == Conversation.MODE_MULTI
 887                || Attachment.canBeSendInband(attachments)
 888                || (conversation.getAccount().httpUploadAvailable() && FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation)))) {
 889            callback.onPresenceSelected();
 890        } else {
 891            activity.selectPresence(conversation, callback);
 892        }
 893    }
 894
 895    public void toggleInputMethod() {
 896        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 897        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 898        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 899        updateSendButton();
 900    }
 901
 902    private void handleNegativeActivityResult(int requestCode) {
 903        switch (requestCode) {
 904            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 905                if (pendingTakePhotoUri.clear()) {
 906                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 907                }
 908                break;
 909        }
 910    }
 911
 912    @Override
 913    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 914        super.onActivityResult(requestCode, resultCode, data);
 915        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 916        if (activity != null && activity.xmppConnectionService != null) {
 917            handleActivityResult(activityResult);
 918        } else {
 919            this.postponedActivityResult.push(activityResult);
 920        }
 921    }
 922
 923    public void unblockConversation(final Blockable conversation) {
 924        activity.xmppConnectionService.sendUnblockRequest(conversation);
 925    }
 926
 927    @Override
 928    public void onAttach(Activity activity) {
 929        super.onAttach(activity);
 930        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 931        if (activity instanceof ConversationsActivity) {
 932            this.activity = (ConversationsActivity) activity;
 933        } else {
 934            throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 935        }
 936    }
 937
 938    @Override
 939    public void onDetach() {
 940        super.onDetach();
 941        this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 942    }
 943
 944    @Override
 945    public void onCreate(Bundle savedInstanceState) {
 946        super.onCreate(savedInstanceState);
 947        setHasOptionsMenu(true);
 948    }
 949
 950    @Override
 951    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 952        menuInflater.inflate(R.menu.fragment_conversation, menu);
 953        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 954        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 955        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 956        final MenuItem menuMute = menu.findItem(R.id.action_mute);
 957        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 958        final MenuItem menuCall = menu.findItem(R.id.action_call);
 959        final MenuItem menuVideoCall = menu.findItem(R.id.action_video_call);
 960
 961
 962        if (conversation != null) {
 963            if (conversation.getMode() == Conversation.MODE_MULTI) {
 964                menuContactDetails.setVisible(false);
 965                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 966                menuMucDetails.setTitle(conversation.getMucOptions().isPrivateAndNonAnonymous() ? R.string.action_muc_details : R.string.channel_details);
 967                menuCall.setVisible(false);
 968            } else {
 969                final RtpCapability.Capability rtpCapability = RtpCapability.check(conversation.getContact());
 970                menuCall.setVisible(rtpCapability != RtpCapability.Capability.NONE);
 971                menuVideoCall.setVisible(rtpCapability == RtpCapability.Capability.VIDEO);
 972                menuContactDetails.setVisible(!this.conversation.withSelf());
 973                menuMucDetails.setVisible(false);
 974                final XmppConnectionService service = activity.xmppConnectionService;
 975                menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
 976            }
 977            if (conversation.isMuted()) {
 978                menuMute.setVisible(false);
 979            } else {
 980                menuUnmute.setVisible(false);
 981            }
 982            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
 983            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
 984        }
 985        super.onCreateOptionsMenu(menu, menuInflater);
 986    }
 987
 988    @Override
 989    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 990        this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
 991        binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
 992
 993        binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
 994
 995        binding.textinput.setOnEditorActionListener(mEditorActionListener);
 996        binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
 997
 998        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
 999
1000        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1001        binding.messagesView.setOnScrollListener(mOnScrollListener);
1002        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1003        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1004        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1005        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1006        messageListAdapter.setOnContactPictureClicked(this);
1007        messageListAdapter.setOnContactPictureLongClicked(this);
1008        messageListAdapter.setOnQuoteListener(this::quoteText);
1009        binding.messagesView.setAdapter(messageListAdapter);
1010
1011        registerForContextMenu(binding.messagesView);
1012
1013        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1014            this.binding.textinput.setCustomInsertionActionModeCallback(new EditMessageActionModeCallback(this.binding.textinput));
1015        }
1016
1017        return binding.getRoot();
1018    }
1019
1020    private void quoteText(String text) {
1021        if (binding.textinput.isEnabled()) {
1022            binding.textinput.insertAsQuote(text);
1023            binding.textinput.requestFocus();
1024            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1025            if (inputMethodManager != null) {
1026                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1027            }
1028        }
1029    }
1030
1031    private void quoteMessage(Message message) {
1032        quoteText(MessageUtils.prepareQuote(message));
1033    }
1034
1035    @Override
1036    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1037        synchronized (this.messageList) {
1038            super.onCreateContextMenu(menu, v, menuInfo);
1039            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1040            this.selectedMessage = this.messageList.get(acmi.position);
1041            populateContextMenu(menu);
1042        }
1043    }
1044
1045    private void populateContextMenu(ContextMenu menu) {
1046        final Message m = this.selectedMessage;
1047        final Transferable t = m.getTransferable();
1048        Message relevantForCorrection = m;
1049        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1050            relevantForCorrection = relevantForCorrection.next();
1051        }
1052        if (m.getType() != Message.TYPE_STATUS && m.getType() != Message.TYPE_RTP_SESSION) {
1053
1054            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1055                return;
1056            }
1057
1058            if (m.getStatus() == Message.STATUS_RECEIVED && t != null && (t.getStatus() == Transferable.STATUS_CANCELLED || t.getStatus() == Transferable.STATUS_FAILED)) {
1059                return;
1060            }
1061
1062            final boolean deleted = m.isDeleted();
1063            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1064                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1065            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleFileTransferConnection || t instanceof HttpDownloadConnection);
1066            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1067            menu.setHeaderTitle(R.string.message_options);
1068            MenuItem openWith = menu.findItem(R.id.open_with);
1069            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1070            MenuItem copyLink = menu.findItem(R.id.copy_link);
1071            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1072            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1073            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1074            MenuItem shareWith = menu.findItem(R.id.share_with);
1075            MenuItem sendAgain = menu.findItem(R.id.send_again);
1076            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1077            MenuItem downloadFile = menu.findItem(R.id.download_file);
1078            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1079            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1080            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1081            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1082            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1083                copyMessage.setVisible(true);
1084                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1085                String body = m.getMergedBody().toString();
1086                if (ShareUtil.containsXmppUri(body)) {
1087                    copyLink.setTitle(R.string.copy_jabber_id);
1088                    copyLink.setVisible(true);
1089                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1090                    copyLink.setVisible(true);
1091                }
1092            }
1093            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1094                retryDecryption.setVisible(true);
1095            }
1096            if (!showError
1097                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1098                    && !m.isGeoUri()
1099                    && relevantForCorrection.isLastCorrectableMessage()
1100                    && m.getConversation() instanceof Conversation) {
1101                correctMessage.setVisible(true);
1102            }
1103            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1104                shareWith.setVisible(true);
1105            }
1106            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1107                sendAgain.setVisible(true);
1108            }
1109            if (m.hasFileOnRemoteHost()
1110                    || m.isGeoUri()
1111                    || m.treatAsDownloadable()
1112                    || t instanceof HttpDownloadConnection) {
1113                copyUrl.setVisible(true);
1114            }
1115            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1116                downloadFile.setVisible(true);
1117                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1118            }
1119            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1120                    || m.getStatus() == Message.STATUS_UNSEND
1121                    || m.getStatus() == Message.STATUS_OFFERED;
1122            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1123            if (cancelable) {
1124                cancelTransmission.setVisible(true);
1125            }
1126            if (m.isFileOrImage() && !deleted && !cancelable) {
1127                String path = m.getRelativeFilePath();
1128                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1129                    deleteFile.setVisible(true);
1130                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1131                }
1132            }
1133            if (showError) {
1134                showErrorMessage.setVisible(true);
1135            }
1136            final String mime = m.isFileOrImage() ? m.getMimeType() : null;
1137            if ((m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(), m)) || (mime != null && mime.startsWith("audio/"))) {
1138                openWith.setVisible(true);
1139            }
1140        }
1141    }
1142
1143    @Override
1144    public boolean onContextItemSelected(MenuItem item) {
1145        switch (item.getItemId()) {
1146            case R.id.share_with:
1147                ShareUtil.share(activity, selectedMessage);
1148                return true;
1149            case R.id.correct_message:
1150                correctMessage(selectedMessage);
1151                return true;
1152            case R.id.copy_message:
1153                ShareUtil.copyToClipboard(activity, selectedMessage);
1154                return true;
1155            case R.id.copy_link:
1156                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1157                return true;
1158            case R.id.quote_message:
1159                quoteMessage(selectedMessage);
1160                return true;
1161            case R.id.send_again:
1162                resendMessage(selectedMessage);
1163                return true;
1164            case R.id.copy_url:
1165                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1166                return true;
1167            case R.id.download_file:
1168                startDownloadable(selectedMessage);
1169                return true;
1170            case R.id.cancel_transmission:
1171                cancelTransmission(selectedMessage);
1172                return true;
1173            case R.id.retry_decryption:
1174                retryDecryption(selectedMessage);
1175                return true;
1176            case R.id.delete_file:
1177                deleteFile(selectedMessage);
1178                return true;
1179            case R.id.show_error_message:
1180                showErrorMessage(selectedMessage);
1181                return true;
1182            case R.id.open_with:
1183                openWith(selectedMessage);
1184                return true;
1185            default:
1186                return super.onContextItemSelected(item);
1187        }
1188    }
1189
1190    @Override
1191    public boolean onOptionsItemSelected(final MenuItem item) {
1192        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1193            return false;
1194        } else if (conversation == null) {
1195            return super.onOptionsItemSelected(item);
1196        }
1197        switch (item.getItemId()) {
1198            case R.id.encryption_choice_axolotl:
1199            case R.id.encryption_choice_pgp:
1200            case R.id.encryption_choice_none:
1201                handleEncryptionSelection(item);
1202                break;
1203            case R.id.attach_choose_picture:
1204            case R.id.attach_take_picture:
1205            case R.id.attach_record_video:
1206            case R.id.attach_choose_file:
1207            case R.id.attach_record_voice:
1208            case R.id.attach_location:
1209                handleAttachmentSelection(item);
1210                break;
1211            case R.id.action_archive:
1212                activity.xmppConnectionService.archiveConversation(conversation);
1213                break;
1214            case R.id.action_contact_details:
1215                activity.switchToContactDetails(conversation.getContact());
1216                break;
1217            case R.id.action_muc_details:
1218                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1219                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1220                intent.putExtra("uuid", conversation.getUuid());
1221                startActivity(intent);
1222                break;
1223            case R.id.action_invite:
1224                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1225                break;
1226            case R.id.action_clear_history:
1227                clearHistoryDialog(conversation);
1228                break;
1229            case R.id.action_mute:
1230                muteConversationDialog(conversation);
1231                break;
1232            case R.id.action_unmute:
1233                unmuteConversation(conversation);
1234                break;
1235            case R.id.action_block:
1236            case R.id.action_unblock:
1237                final Activity activity = getActivity();
1238                if (activity instanceof XmppActivity) {
1239                    BlockContactDialog.show((XmppActivity) activity, conversation);
1240                }
1241                break;
1242            case R.id.action_audio_call:
1243                checkPermissionAndTriggerAudioCall();
1244                break;
1245            case R.id.action_video_call:
1246                checkPermissionAndTriggerVideoCall();
1247                break;
1248            default:
1249                break;
1250        }
1251        return super.onOptionsItemSelected(item);
1252    }
1253
1254    private void checkPermissionAndTriggerAudioCall() {
1255        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1256            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1257            return;
1258        }
1259        if (hasPermissions(REQUEST_START_AUDIO_CALL, Manifest.permission.RECORD_AUDIO)) {
1260            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1261        }
1262    }
1263
1264    private void checkPermissionAndTriggerVideoCall() {
1265        if (activity.mUseTor || conversation.getAccount().isOnion()) {
1266            Toast.makeText(activity, R.string.disable_tor_to_make_call, Toast.LENGTH_SHORT).show();
1267            return;
1268        }
1269        if (hasPermissions(REQUEST_START_VIDEO_CALL, Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA)) {
1270            triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1271        }
1272    }
1273
1274
1275    private void triggerRtpSession(final String action) {
1276        final Contact contact = conversation.getContact();
1277        final Intent intent = new Intent(activity, RtpSessionActivity.class);
1278        intent.setAction(action);
1279        intent.putExtra(RtpSessionActivity.EXTRA_ACCOUNT, contact.getAccount().getJid().toEscapedString());
1280        intent.putExtra(RtpSessionActivity.EXTRA_WITH, contact.getJid().asBareJid().toEscapedString());
1281        startActivity(intent);
1282    }
1283
1284    private void handleAttachmentSelection(MenuItem item) {
1285        switch (item.getItemId()) {
1286            case R.id.attach_choose_picture:
1287                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1288                break;
1289            case R.id.attach_take_picture:
1290                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1291                break;
1292            case R.id.attach_record_video:
1293                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1294                break;
1295            case R.id.attach_choose_file:
1296                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1297                break;
1298            case R.id.attach_record_voice:
1299                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1300                break;
1301            case R.id.attach_location:
1302                attachFile(ATTACHMENT_CHOICE_LOCATION);
1303                break;
1304        }
1305    }
1306
1307    private void handleEncryptionSelection(MenuItem item) {
1308        if (conversation == null) {
1309            return;
1310        }
1311        final boolean updated;
1312        switch (item.getItemId()) {
1313            case R.id.encryption_choice_none:
1314                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1315                item.setChecked(true);
1316                break;
1317            case R.id.encryption_choice_pgp:
1318                if (activity.hasPgp()) {
1319                    if (conversation.getAccount().getPgpSignature() != null) {
1320                        updated = conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1321                        item.setChecked(true);
1322                    } else {
1323                        updated = false;
1324                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1325                    }
1326                } else {
1327                    activity.showInstallPgpDialog();
1328                    updated = false;
1329                }
1330                break;
1331            case R.id.encryption_choice_axolotl:
1332                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1333                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1334                updated = conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1335                item.setChecked(true);
1336                break;
1337            default:
1338                updated = conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1339                break;
1340        }
1341        if (updated) {
1342            activity.xmppConnectionService.updateConversation(conversation);
1343        }
1344        updateChatMsgHint();
1345        getActivity().invalidateOptionsMenu();
1346        activity.refreshUi();
1347    }
1348
1349    public void attachFile(final int attachmentChoice) {
1350        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1351            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1352                return;
1353            }
1354        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1355            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1356                return;
1357            }
1358        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1359            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1360                return;
1361            }
1362        }
1363        try {
1364            activity.getPreferences().edit()
1365                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1366                    .apply();
1367        } catch (IllegalArgumentException e) {
1368            //just do not save
1369        }
1370        final int encryption = conversation.getNextEncryption();
1371        final int mode = conversation.getMode();
1372        if (encryption == Message.ENCRYPTION_PGP) {
1373            if (activity.hasPgp()) {
1374                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1375                    activity.xmppConnectionService.getPgpEngine().hasKey(
1376                            conversation.getContact(),
1377                            new UiCallback<Contact>() {
1378
1379                                @Override
1380                                public void userInputRequired(PendingIntent pi, Contact contact) {
1381                                    startPendingIntent(pi, attachmentChoice);
1382                                }
1383
1384                                @Override
1385                                public void success(Contact contact) {
1386                                    invokeAttachFileIntent(attachmentChoice);
1387                                }
1388
1389                                @Override
1390                                public void error(int error, Contact contact) {
1391                                    activity.replaceToast(getString(error));
1392                                }
1393                            });
1394                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1395                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1396                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1397                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1398                        warning.show();
1399                    }
1400                    invokeAttachFileIntent(attachmentChoice);
1401                } else {
1402                    showNoPGPKeyDialog(false, (dialog, which) -> {
1403                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1404                        activity.xmppConnectionService.updateConversation(conversation);
1405                        invokeAttachFileIntent(attachmentChoice);
1406                    });
1407                }
1408            } else {
1409                activity.showInstallPgpDialog();
1410            }
1411        } else {
1412            invokeAttachFileIntent(attachmentChoice);
1413        }
1414    }
1415
1416    @Override
1417    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
1418        if (grantResults.length > 0) {
1419            if (allGranted(grantResults)) {
1420                switch (requestCode) {
1421                    case REQUEST_START_DOWNLOAD:
1422                        if (this.mPendingDownloadableMessage != null) {
1423                            startDownloadable(this.mPendingDownloadableMessage);
1424                        }
1425                        break;
1426                    case REQUEST_ADD_EDITOR_CONTENT:
1427                        if (this.mPendingEditorContent != null) {
1428                            attachEditorContentToConversation(this.mPendingEditorContent);
1429                        }
1430                        break;
1431                    case REQUEST_COMMIT_ATTACHMENTS:
1432                        commitAttachments();
1433                        break;
1434                    case REQUEST_START_AUDIO_CALL:
1435                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VOICE_CALL);
1436                        break;
1437                    case REQUEST_START_VIDEO_CALL:
1438                        triggerRtpSession(RtpSessionActivity.ACTION_MAKE_VIDEO_CALL);
1439                        break;
1440                    default:
1441                        attachFile(requestCode);
1442                        break;
1443                }
1444            } else {
1445                @StringRes int res;
1446                String firstDenied = getFirstDenied(grantResults, permissions);
1447                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1448                    res = R.string.no_microphone_permission;
1449                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1450                    res = R.string.no_camera_permission;
1451                } else {
1452                    res = R.string.no_storage_permission;
1453                }
1454                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1455            }
1456        }
1457        if (writeGranted(grantResults, permissions)) {
1458            if (activity != null && activity.xmppConnectionService != null) {
1459                activity.xmppConnectionService.restartFileObserver();
1460            }
1461            refresh();
1462        }
1463    }
1464
1465    public void startDownloadable(Message message) {
1466        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1467            this.mPendingDownloadableMessage = message;
1468            return;
1469        }
1470        Transferable transferable = message.getTransferable();
1471        if (transferable != null) {
1472            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1473                createNewConnection(message);
1474                return;
1475            }
1476            if (!transferable.start()) {
1477                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1478                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1479            }
1480        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost() || MessageUtils.unInitiatedButKnownSize(message)) {
1481            createNewConnection(message);
1482        } else {
1483            Log.d(Config.LOGTAG, message.getConversation().getAccount() + ": unable to start downloadable");
1484        }
1485    }
1486
1487    private void createNewConnection(final Message message) {
1488        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1489            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1490            return;
1491        }
1492        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1493    }
1494
1495    @SuppressLint("InflateParams")
1496    protected void clearHistoryDialog(final Conversation conversation) {
1497        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1498        builder.setTitle(getString(R.string.clear_conversation_history));
1499        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1500        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1501        builder.setView(dialogView);
1502        builder.setNegativeButton(getString(R.string.cancel), null);
1503        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1504            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1505            if (endConversationCheckBox.isChecked()) {
1506                this.activity.xmppConnectionService.archiveConversation(conversation);
1507                this.activity.onConversationArchived(conversation);
1508            } else {
1509                activity.onConversationsListItemUpdated();
1510                refresh();
1511            }
1512        });
1513        builder.create().show();
1514    }
1515
1516    protected void muteConversationDialog(final Conversation conversation) {
1517        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1518        builder.setTitle(R.string.disable_notifications);
1519        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1520        final CharSequence[] labels = new CharSequence[durations.length];
1521        for (int i = 0; i < durations.length; ++i) {
1522            if (durations[i] == -1) {
1523                labels[i] = getString(R.string.until_further_notice);
1524            } else {
1525                labels[i] = TimeframeUtils.resolve(activity, 1000L * durations[i]);
1526            }
1527        }
1528        builder.setItems(labels, (dialog, which) -> {
1529            final long till;
1530            if (durations[which] == -1) {
1531                till = Long.MAX_VALUE;
1532            } else {
1533                till = System.currentTimeMillis() + (durations[which] * 1000);
1534            }
1535            conversation.setMutedTill(till);
1536            activity.xmppConnectionService.updateConversation(conversation);
1537            activity.onConversationsListItemUpdated();
1538            refresh();
1539            getActivity().invalidateOptionsMenu();
1540        });
1541        builder.create().show();
1542    }
1543
1544    private boolean hasPermissions(int requestCode, String... permissions) {
1545        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1546            final List<String> missingPermissions = new ArrayList<>();
1547            for (String permission : permissions) {
1548                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1549                    continue;
1550                }
1551                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1552                    missingPermissions.add(permission);
1553                }
1554            }
1555            if (missingPermissions.size() == 0) {
1556                return true;
1557            } else {
1558                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1559                return false;
1560            }
1561        } else {
1562            return true;
1563        }
1564    }
1565
1566    public void unmuteConversation(final Conversation conversation) {
1567        conversation.setMutedTill(0);
1568        this.activity.xmppConnectionService.updateConversation(conversation);
1569        this.activity.onConversationsListItemUpdated();
1570        refresh();
1571        getActivity().invalidateOptionsMenu();
1572    }
1573
1574
1575    protected void invokeAttachFileIntent(final int attachmentChoice) {
1576        Intent intent = new Intent();
1577        boolean chooser = false;
1578        switch (attachmentChoice) {
1579            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1580                intent.setAction(Intent.ACTION_GET_CONTENT);
1581                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1582                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1583                }
1584                intent.setType("image/*");
1585                chooser = true;
1586                break;
1587            case ATTACHMENT_CHOICE_RECORD_VIDEO:
1588                intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1589                break;
1590            case ATTACHMENT_CHOICE_TAKE_PHOTO:
1591                final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1592                pendingTakePhotoUri.push(uri);
1593                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1594                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1595                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1596                intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1597                break;
1598            case ATTACHMENT_CHOICE_CHOOSE_FILE:
1599                chooser = true;
1600                intent.setType("*/*");
1601                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1602                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1603                }
1604                intent.addCategory(Intent.CATEGORY_OPENABLE);
1605                intent.setAction(Intent.ACTION_GET_CONTENT);
1606                break;
1607            case ATTACHMENT_CHOICE_RECORD_VOICE:
1608                intent = new Intent(getActivity(), RecordingActivity.class);
1609                break;
1610            case ATTACHMENT_CHOICE_LOCATION:
1611                intent = GeoHelper.getFetchIntent(activity);
1612                break;
1613        }
1614        final Context context = getActivity();
1615        if (context != null && intent.resolveActivity(context.getPackageManager()) != null) {
1616            if (chooser) {
1617                startActivityForResult(
1618                        Intent.createChooser(intent, getString(R.string.perform_action_with)),
1619                        attachmentChoice);
1620            } else {
1621                startActivityForResult(intent, attachmentChoice);
1622            }
1623        }
1624    }
1625
1626    @Override
1627    public void onResume() {
1628        super.onResume();
1629        binding.messagesView.post(this::fireReadEvent);
1630    }
1631
1632    private void fireReadEvent() {
1633        if (activity != null && this.conversation != null) {
1634            String uuid = getLastVisibleMessageUuid();
1635            if (uuid != null) {
1636                activity.onConversationRead(this.conversation, uuid);
1637            }
1638        }
1639    }
1640
1641    private String getLastVisibleMessageUuid() {
1642        if (binding == null) {
1643            return null;
1644        }
1645        synchronized (this.messageList) {
1646            int pos = binding.messagesView.getLastVisiblePosition();
1647            if (pos >= 0) {
1648                Message message = null;
1649                for (int i = pos; i >= 0; --i) {
1650                    try {
1651                        message = (Message) binding.messagesView.getItemAtPosition(i);
1652                    } catch (IndexOutOfBoundsException e) {
1653                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1654                        continue;
1655                    }
1656                    if (message.getType() != Message.TYPE_STATUS) {
1657                        break;
1658                    }
1659                }
1660                if (message != null) {
1661                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1662                        message = message.next();
1663                    }
1664                    return message.getUuid();
1665                }
1666            }
1667        }
1668        return null;
1669    }
1670
1671    private void openWith(final Message message) {
1672        if (message.isGeoUri()) {
1673            GeoHelper.view(getActivity(), message);
1674        } else {
1675            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1676            ViewUtil.view(activity, file);
1677        }
1678    }
1679
1680    private void showErrorMessage(final Message message) {
1681        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1682        builder.setTitle(R.string.error_message);
1683        final String errorMessage = message.getErrorMessage();
1684        final String[] errorMessageParts = errorMessage == null ? new String[0] : errorMessage.split("\\u001f");
1685        final String displayError;
1686        if (errorMessageParts.length == 2) {
1687            displayError = errorMessageParts[1];
1688        } else {
1689            displayError = errorMessage;
1690        }
1691        builder.setMessage(displayError);
1692        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1693            activity.copyTextToClipboard(displayError, R.string.error_message);
1694            Toast.makeText(activity, R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1695        });
1696        builder.setPositiveButton(R.string.confirm, null);
1697        builder.create().show();
1698    }
1699
1700
1701    private void deleteFile(final Message message) {
1702        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1703        builder.setNegativeButton(R.string.cancel, null);
1704        builder.setTitle(R.string.delete_file_dialog);
1705        builder.setMessage(R.string.delete_file_dialog_msg);
1706        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1707            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1708                message.setDeleted(true);
1709                activity.xmppConnectionService.evictPreview(message.getUuid());
1710                activity.xmppConnectionService.updateMessage(message, false);
1711                activity.onConversationsListItemUpdated();
1712                refresh();
1713            }
1714        });
1715        builder.create().show();
1716
1717    }
1718
1719    private void resendMessage(final Message message) {
1720        if (message.isFileOrImage()) {
1721            if (!(message.getConversation() instanceof Conversation)) {
1722                return;
1723            }
1724            final Conversation conversation = (Conversation) message.getConversation();
1725            final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1726            if ((file.exists() && file.canRead()) || message.hasFileOnRemoteHost()) {
1727                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1728                if (!message.hasFileOnRemoteHost()
1729                        && xmppConnection != null
1730                        && conversation.getMode() == Conversational.MODE_SINGLE
1731                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1732                    activity.selectPresence(conversation, () -> {
1733                        message.setCounterpart(conversation.getNextCounterpart());
1734                        activity.xmppConnectionService.resendFailedMessages(message);
1735                        new Handler().post(() -> {
1736                            int size = messageList.size();
1737                            this.binding.messagesView.setSelection(size - 1);
1738                        });
1739                    });
1740                    return;
1741                }
1742            } else if (!Compatibility.hasStoragePermission(getActivity())) {
1743                Toast.makeText(activity, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
1744                return;
1745            } else {
1746                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1747                message.setDeleted(true);
1748                activity.xmppConnectionService.updateMessage(message, false);
1749                activity.onConversationsListItemUpdated();
1750                refresh();
1751                return;
1752            }
1753        }
1754        activity.xmppConnectionService.resendFailedMessages(message);
1755        new Handler().post(() -> {
1756            int size = messageList.size();
1757            this.binding.messagesView.setSelection(size - 1);
1758        });
1759    }
1760
1761    private void cancelTransmission(Message message) {
1762        Transferable transferable = message.getTransferable();
1763        if (transferable != null) {
1764            transferable.cancel();
1765        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1766            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1767        }
1768    }
1769
1770    private void retryDecryption(Message message) {
1771        message.setEncryption(Message.ENCRYPTION_PGP);
1772        activity.onConversationsListItemUpdated();
1773        refresh();
1774        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1775    }
1776
1777    public void privateMessageWith(final Jid counterpart) {
1778        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
1779            activity.xmppConnectionService.sendChatState(conversation);
1780        }
1781        this.binding.textinput.setText("");
1782        this.conversation.setNextCounterpart(counterpart);
1783        updateChatMsgHint();
1784        updateSendButton();
1785        updateEditablity();
1786    }
1787
1788    private void correctMessage(Message message) {
1789        while (message.mergeable(message.next())) {
1790            message = message.next();
1791        }
1792        this.conversation.setCorrectingMessage(message);
1793        final Editable editable = binding.textinput.getText();
1794        this.conversation.setDraftMessage(editable.toString());
1795        this.binding.textinput.setText("");
1796        this.binding.textinput.append(message.getBody());
1797
1798    }
1799
1800    private void highlightInConference(String nick) {
1801        final Editable editable = this.binding.textinput.getText();
1802        String oldString = editable.toString().trim();
1803        final int pos = this.binding.textinput.getSelectionStart();
1804        if (oldString.isEmpty() || pos == 0) {
1805            editable.insert(0, nick + ": ");
1806        } else {
1807            final char before = editable.charAt(pos - 1);
1808            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1809            if (before == '\n') {
1810                editable.insert(pos, nick + ": ");
1811            } else {
1812                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1813                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1814                        editable.insert(pos - 2, ", " + nick);
1815                        return;
1816                    }
1817                }
1818                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1819                if (Character.isWhitespace(after)) {
1820                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1821                }
1822            }
1823        }
1824    }
1825
1826    @Override
1827    public void startActivityForResult(Intent intent, int requestCode) {
1828        final Activity activity = getActivity();
1829        if (activity instanceof ConversationsActivity) {
1830            ((ConversationsActivity) activity).clearPendingViewIntent();
1831        }
1832        super.startActivityForResult(intent, requestCode);
1833    }
1834
1835    @Override
1836    public void onSaveInstanceState(Bundle outState) {
1837        super.onSaveInstanceState(outState);
1838        if (conversation != null) {
1839            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1840            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1841            final Uri uri = pendingTakePhotoUri.peek();
1842            if (uri != null) {
1843                outState.putString(STATE_PHOTO_URI, uri.toString());
1844            }
1845            final ScrollState scrollState = getScrollPosition();
1846            if (scrollState != null) {
1847                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1848            }
1849            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1850            if (attachments.size() > 0) {
1851                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1852            }
1853        }
1854    }
1855
1856    @Override
1857    public void onActivityCreated(Bundle savedInstanceState) {
1858        super.onActivityCreated(savedInstanceState);
1859        if (savedInstanceState == null) {
1860            return;
1861        }
1862        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1863        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1864        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1865        if (uuid != null) {
1866            QuickLoader.set(uuid);
1867            this.pendingConversationsUuid.push(uuid);
1868            if (attachments != null && attachments.size() > 0) {
1869                this.pendingMediaPreviews.push(attachments);
1870            }
1871            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1872            if (takePhotoUri != null) {
1873                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1874            }
1875            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1876        }
1877    }
1878
1879    @Override
1880    public void onStart() {
1881        super.onStart();
1882        if (this.reInitRequiredOnStart && this.conversation != null) {
1883            final Bundle extras = pendingExtras.pop();
1884            reInit(this.conversation, extras != null);
1885            if (extras != null) {
1886                processExtras(extras);
1887            }
1888        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
1889            final String uuid = pendingConversationsUuid.pop();
1890            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
1891            if (uuid != null) {
1892                findAndReInitByUuidOrArchive(uuid);
1893            }
1894        }
1895    }
1896
1897    @Override
1898    public void onStop() {
1899        super.onStop();
1900        final Activity activity = getActivity();
1901        messageListAdapter.unregisterListenerInAudioPlayer();
1902        if (activity == null || !activity.isChangingConfigurations()) {
1903            hideSoftKeyboard(activity);
1904            messageListAdapter.stopAudioPlayer();
1905        }
1906        if (this.conversation != null) {
1907            final String msg = this.binding.textinput.getText().toString();
1908            storeNextMessage(msg);
1909            updateChatState(this.conversation, msg);
1910            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
1911        }
1912        this.reInitRequiredOnStart = true;
1913    }
1914
1915    private void updateChatState(final Conversation conversation, final String msg) {
1916        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
1917        Account.State status = conversation.getAccount().getStatus();
1918        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
1919            activity.xmppConnectionService.sendChatState(conversation);
1920        }
1921    }
1922
1923    private void saveMessageDraftStopAudioPlayer() {
1924        final Conversation previousConversation = this.conversation;
1925        if (this.activity == null || this.binding == null || previousConversation == null) {
1926            return;
1927        }
1928        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
1929        final String msg = this.binding.textinput.getText().toString();
1930        storeNextMessage(msg);
1931        updateChatState(this.conversation, msg);
1932        messageListAdapter.stopAudioPlayer();
1933        mediaPreviewAdapter.clearPreviews();
1934        toggleInputMethod();
1935    }
1936
1937    public void reInit(Conversation conversation, Bundle extras) {
1938        QuickLoader.set(conversation.getUuid());
1939        this.saveMessageDraftStopAudioPlayer();
1940        this.clearPending();
1941        if (this.reInit(conversation, extras != null)) {
1942            if (extras != null) {
1943                processExtras(extras);
1944            }
1945            this.reInitRequiredOnStart = false;
1946        } else {
1947            this.reInitRequiredOnStart = true;
1948            pendingExtras.push(extras);
1949        }
1950        resetUnreadMessagesCount();
1951    }
1952
1953    private void reInit(Conversation conversation) {
1954        reInit(conversation, false);
1955    }
1956
1957    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
1958        if (conversation == null) {
1959            return false;
1960        }
1961        this.conversation = conversation;
1962        //once we set the conversation all is good and it will automatically do the right thing in onStart()
1963        if (this.activity == null || this.binding == null) {
1964            return false;
1965        }
1966
1967        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
1968            activity.onConversationArchived(this.conversation);
1969            return false;
1970        }
1971
1972        stopScrolling();
1973        Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
1974
1975        if (this.conversation.isRead() && hasExtras) {
1976            Log.d(Config.LOGTAG, "trimming conversation");
1977            this.conversation.trim();
1978        }
1979
1980        setupIme();
1981
1982        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
1983
1984        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
1985        this.binding.textinput.setKeyboardListener(null);
1986        this.binding.textinput.setText("");
1987        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
1988        if (participating) {
1989            this.binding.textinput.append(this.conversation.getNextMessage());
1990        }
1991        this.binding.textinput.setKeyboardListener(this);
1992        messageListAdapter.updatePreferences();
1993        refresh(false);
1994        this.conversation.messagesLoaded.set(true);
1995        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
1996
1997        if (hasExtras || scrolledToBottomAndNoPending) {
1998            resetUnreadMessagesCount();
1999            synchronized (this.messageList) {
2000                Log.d(Config.LOGTAG, "jump to first unread message");
2001                final Message first = conversation.getFirstUnreadMessage();
2002                final int bottom = Math.max(0, this.messageList.size() - 1);
2003                final int pos;
2004                final boolean jumpToBottom;
2005                if (first == null) {
2006                    pos = bottom;
2007                    jumpToBottom = true;
2008                } else {
2009                    int i = getIndexOf(first.getUuid(), this.messageList);
2010                    pos = i < 0 ? bottom : i;
2011                    jumpToBottom = false;
2012                }
2013                setSelection(pos, jumpToBottom);
2014            }
2015        }
2016
2017
2018        this.binding.messagesView.post(this::fireReadEvent);
2019        //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
2020        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
2021        return true;
2022    }
2023
2024    private void resetUnreadMessagesCount() {
2025        lastMessageUuid = null;
2026        hideUnreadMessagesCount();
2027    }
2028
2029    private void hideUnreadMessagesCount() {
2030        if (this.binding == null) {
2031            return;
2032        }
2033        this.binding.scrollToBottomButton.setEnabled(false);
2034        this.binding.scrollToBottomButton.hide();
2035        this.binding.unreadCountCustomView.setVisibility(View.GONE);
2036    }
2037
2038    private void setSelection(int pos, boolean jumpToBottom) {
2039        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
2040        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
2041        this.binding.messagesView.post(this::fireReadEvent);
2042    }
2043
2044
2045    private boolean scrolledToBottom() {
2046        return this.binding != null && scrolledToBottom(this.binding.messagesView);
2047    }
2048
2049    private void processExtras(Bundle extras) {
2050        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
2051        final String text = extras.getString(Intent.EXTRA_TEXT);
2052        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
2053        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
2054        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
2055        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2056        final List<Uri> uris = extractUris(extras);
2057        if (uris != null && uris.size() > 0) {
2058            if (uris.size() == 1 && "geo".equals(uris.get(0).getScheme())) {
2059                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris.get(0), Attachment.Type.LOCATION));
2060            } else {
2061                final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2062                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2063            }
2064            toggleInputMethod();
2065            return;
2066        }
2067        if (nick != null) {
2068            if (pm) {
2069                Jid jid = conversation.getJid();
2070                try {
2071                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2072                    privateMessageWith(next);
2073                } catch (final IllegalArgumentException ignored) {
2074                    //do nothing
2075                }
2076            } else {
2077                final MucOptions mucOptions = conversation.getMucOptions();
2078                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2079                    highlightInConference(nick);
2080                }
2081            }
2082        } else {
2083            if (text != null && GeoHelper.GEO_URI.matcher(text).matches()) {
2084                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), Uri.parse(text), Attachment.Type.LOCATION));
2085                toggleInputMethod();
2086                return;
2087            } else if (text != null && asQuote) {
2088                quoteText(text);
2089            } else {
2090                appendText(text, doNotAppend);
2091            }
2092        }
2093        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2094        if (message != null) {
2095            startDownloadable(message);
2096        }
2097    }
2098
2099    private List<Uri> extractUris(Bundle extras) {
2100        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2101        if (uris != null) {
2102            return uris;
2103        }
2104        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2105        if (uri != null) {
2106            return Collections.singletonList(uri);
2107        } else {
2108            return null;
2109        }
2110    }
2111
2112    private List<Uri> cleanUris(List<Uri> uris) {
2113        Iterator<Uri> iterator = uris.iterator();
2114        while (iterator.hasNext()) {
2115            final Uri uri = iterator.next();
2116            if (FileBackend.weOwnFile(getActivity(), uri)) {
2117                iterator.remove();
2118                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2119            }
2120        }
2121        return uris;
2122    }
2123
2124    private boolean showBlockSubmenu(View view) {
2125        final Jid jid = conversation.getJid();
2126        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2127        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2128        popupMenu.inflate(R.menu.block);
2129        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2130        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2131        popupMenu.setOnMenuItemClickListener(menuItem -> {
2132            Blockable blockable;
2133            switch (menuItem.getItemId()) {
2134                case R.id.reject:
2135                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2136                    updateSnackBar(conversation);
2137                    return true;
2138                case R.id.block_domain:
2139                    blockable = conversation.getAccount().getRoster().getContact(Jid.ofDomain(jid.getDomain()));
2140                    break;
2141                default:
2142                    blockable = conversation;
2143            }
2144            BlockContactDialog.show(activity, blockable);
2145            return true;
2146        });
2147        popupMenu.show();
2148        return true;
2149    }
2150
2151    private void updateSnackBar(final Conversation conversation) {
2152        final Account account = conversation.getAccount();
2153        final XmppConnection connection = account.getXmppConnection();
2154        final int mode = conversation.getMode();
2155        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2156        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2157            return;
2158        }
2159        if (account.getStatus() == Account.State.DISABLED) {
2160            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2161        } else if (conversation.isBlocked()) {
2162            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2163        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2164            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2165        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2166            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2167        } else if (mode == Conversation.MODE_MULTI
2168                && !conversation.getMucOptions().online()
2169                && account.getStatus() == Account.State.ONLINE) {
2170            switch (conversation.getMucOptions().getError()) {
2171                case NICK_IN_USE:
2172                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2173                    break;
2174                case NO_RESPONSE:
2175                    showSnackbar(R.string.joining_conference, 0, null);
2176                    break;
2177                case SERVER_NOT_FOUND:
2178                    if (conversation.receivedMessagesCount() > 0) {
2179                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2180                    } else {
2181                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2182                    }
2183                    break;
2184                case REMOTE_SERVER_TIMEOUT:
2185                    if (conversation.receivedMessagesCount() > 0) {
2186                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2187                    } else {
2188                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2189                    }
2190                    break;
2191                case PASSWORD_REQUIRED:
2192                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2193                    break;
2194                case BANNED:
2195                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2196                    break;
2197                case MEMBERS_ONLY:
2198                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2199                    break;
2200                case RESOURCE_CONSTRAINT:
2201                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2202                    break;
2203                case KICKED:
2204                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2205                    break;
2206                case UNKNOWN:
2207                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2208                    break;
2209                case INVALID_NICK:
2210                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2211                case SHUTDOWN:
2212                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2213                    break;
2214                case DESTROYED:
2215                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2216                    break;
2217                case NON_ANONYMOUS:
2218                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2219                    break;
2220                default:
2221                    hideSnackbar();
2222                    break;
2223            }
2224        } else if (account.hasPendingPgpIntent(conversation)) {
2225            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2226        } else if (connection != null
2227                && connection.getFeatures().blocking()
2228                && conversation.countMessages() != 0
2229                && !conversation.isBlocked()
2230                && conversation.isWithStranger()) {
2231            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2232        } else {
2233            hideSnackbar();
2234        }
2235    }
2236
2237    @Override
2238    public void refresh() {
2239        if (this.binding == null) {
2240            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2241            return;
2242        }
2243        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2244            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2245                activity.onConversationArchived(this.conversation);
2246                return;
2247            }
2248        }
2249        this.refresh(true);
2250    }
2251
2252    private void refresh(boolean notifyConversationRead) {
2253        synchronized (this.messageList) {
2254            if (this.conversation != null) {
2255                conversation.populateWithMessages(this.messageList);
2256                updateSnackBar(conversation);
2257                updateStatusMessages();
2258                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2259                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2260                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2261                }
2262                this.messageListAdapter.notifyDataSetChanged();
2263                updateChatMsgHint();
2264                if (notifyConversationRead && activity != null) {
2265                    binding.messagesView.post(this::fireReadEvent);
2266                }
2267                updateSendButton();
2268                updateEditablity();
2269                activity.invalidateOptionsMenu();
2270            }
2271        }
2272    }
2273
2274    protected void messageSent() {
2275        mSendingPgpMessage.set(false);
2276        this.binding.textinput.setText("");
2277        if (conversation.setCorrectingMessage(null)) {
2278            this.binding.textinput.append(conversation.getDraftMessage());
2279            conversation.setDraftMessage(null);
2280        }
2281        storeNextMessage();
2282        updateChatMsgHint();
2283        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2284        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2285        if (prefScrollToBottom || scrolledToBottom()) {
2286            new Handler().post(() -> {
2287                int size = messageList.size();
2288                this.binding.messagesView.setSelection(size - 1);
2289            });
2290        }
2291    }
2292
2293    private boolean storeNextMessage() {
2294        return storeNextMessage(this.binding.textinput.getText().toString());
2295    }
2296
2297    private boolean storeNextMessage(String msg) {
2298        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2299        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2300            this.activity.xmppConnectionService.updateConversation(this.conversation);
2301            return true;
2302        }
2303        return false;
2304    }
2305
2306    public void doneSendingPgpMessage() {
2307        mSendingPgpMessage.set(false);
2308    }
2309
2310    public long getMaxHttpUploadSize(Conversation conversation) {
2311        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2312        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2313    }
2314
2315    private void updateEditablity() {
2316        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2317        this.binding.textinput.setFocusable(canWrite);
2318        this.binding.textinput.setFocusableInTouchMode(canWrite);
2319        this.binding.textSendButton.setEnabled(canWrite);
2320        this.binding.textinput.setCursorVisible(canWrite);
2321        this.binding.textinput.setEnabled(canWrite);
2322    }
2323
2324    public void updateSendButton() {
2325        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2326        final Conversation c = this.conversation;
2327        final Presence.Status status;
2328        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2329        final SendButtonAction action;
2330        if (hasAttachments) {
2331            action = SendButtonAction.TEXT;
2332        } else {
2333            action = SendButtonTool.getAction(getActivity(), c, text);
2334        }
2335        if (c.getAccount().getStatus() == Account.State.ONLINE) {
2336            if (activity != null && activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2337                status = Presence.Status.OFFLINE;
2338            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2339                status = c.getContact().getShownStatus();
2340            } else {
2341                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2342            }
2343        } else {
2344            status = Presence.Status.OFFLINE;
2345        }
2346        this.binding.textSendButton.setTag(action);
2347        final Activity activity = getActivity();
2348        if (activity != null) {
2349            this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(activity, action, status));
2350        }
2351    }
2352
2353    protected void updateStatusMessages() {
2354        DateSeparator.addAll(this.messageList);
2355        if (showLoadMoreMessages(conversation)) {
2356            this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2357        }
2358        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2359            ChatState state = conversation.getIncomingChatState();
2360            if (state == ChatState.COMPOSING) {
2361                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2362            } else if (state == ChatState.PAUSED) {
2363                this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2364            } else {
2365                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2366                    final Message message = this.messageList.get(i);
2367                    if (message.getType() != Message.TYPE_STATUS) {
2368                        if (message.getStatus() == Message.STATUS_RECEIVED) {
2369                            return;
2370                        } else {
2371                            if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2372                                this.messageList.add(i + 1,
2373                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2374                                return;
2375                            }
2376                        }
2377                    }
2378                }
2379            }
2380        } else {
2381            final MucOptions mucOptions = conversation.getMucOptions();
2382            final List<MucOptions.User> allUsers = mucOptions.getUsers();
2383            final Set<ReadByMarker> addedMarkers = new HashSet<>();
2384            ChatState state = ChatState.COMPOSING;
2385            List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2386            if (users.size() == 0) {
2387                state = ChatState.PAUSED;
2388                users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2389            }
2390            if (mucOptions.isPrivateAndNonAnonymous()) {
2391                for (int i = this.messageList.size() - 1; i >= 0; --i) {
2392                    final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2393                    final List<MucOptions.User> shownMarkers = new ArrayList<>();
2394                    for (ReadByMarker marker : markersForMessage) {
2395                        if (!ReadByMarker.contains(marker, addedMarkers)) {
2396                            addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2397                            MucOptions.User user = mucOptions.findUser(marker);
2398                            if (user != null && !users.contains(user)) {
2399                                shownMarkers.add(user);
2400                            }
2401                        }
2402                    }
2403                    final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2404                    final Message statusMessage;
2405                    final int size = shownMarkers.size();
2406                    if (size > 1) {
2407                        final String body;
2408                        if (size <= 4) {
2409                            body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2410                        } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2411                            body = getString(R.string.everyone_has_read_up_to_this_point);
2412                        } else {
2413                            body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2414                        }
2415                        statusMessage = Message.createStatusMessage(conversation, body);
2416                        statusMessage.setCounterparts(shownMarkers);
2417                    } else if (size == 1) {
2418                        statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2419                        statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2420                        statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2421                    } else {
2422                        statusMessage = null;
2423                    }
2424                    if (statusMessage != null) {
2425                        this.messageList.add(i + 1, statusMessage);
2426                    }
2427                    addedMarkers.add(markerForSender);
2428                    if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2429                        break;
2430                    }
2431                }
2432            }
2433            if (users.size() > 0) {
2434                Message statusMessage;
2435                if (users.size() == 1) {
2436                    MucOptions.User user = users.get(0);
2437                    int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2438                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2439                    statusMessage.setTrueCounterpart(user.getRealJid());
2440                    statusMessage.setCounterpart(user.getFullJid());
2441                } else {
2442                    int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2443                    statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2444                    statusMessage.setCounterparts(users);
2445                }
2446                this.messageList.add(statusMessage);
2447            }
2448
2449        }
2450    }
2451
2452    private void stopScrolling() {
2453        long now = SystemClock.uptimeMillis();
2454        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2455        binding.messagesView.dispatchTouchEvent(cancel);
2456    }
2457
2458    private boolean showLoadMoreMessages(final Conversation c) {
2459        if (activity == null || activity.xmppConnectionService == null) {
2460            return false;
2461        }
2462        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2463        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2464        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2465    }
2466
2467    private boolean hasMamSupport(final Conversation c) {
2468        if (c.getMode() == Conversation.MODE_SINGLE) {
2469            final XmppConnection connection = c.getAccount().getXmppConnection();
2470            return connection != null && connection.getFeatures().mam();
2471        } else {
2472            return c.getMucOptions().mamSupport();
2473        }
2474    }
2475
2476    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2477        showSnackbar(message, action, clickListener, null);
2478    }
2479
2480    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2481        this.binding.snackbar.setVisibility(View.VISIBLE);
2482        this.binding.snackbar.setOnClickListener(null);
2483        this.binding.snackbarMessage.setText(message);
2484        this.binding.snackbarMessage.setOnClickListener(null);
2485        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2486        if (action != 0) {
2487            this.binding.snackbarAction.setText(action);
2488        }
2489        this.binding.snackbarAction.setOnClickListener(clickListener);
2490        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2491    }
2492
2493    protected void hideSnackbar() {
2494        this.binding.snackbar.setVisibility(View.GONE);
2495    }
2496
2497    protected void sendMessage(Message message) {
2498        activity.xmppConnectionService.sendMessage(message);
2499        messageSent();
2500    }
2501
2502    protected void sendPgpMessage(final Message message) {
2503        final XmppConnectionService xmppService = activity.xmppConnectionService;
2504        final Contact contact = message.getConversation().getContact();
2505        if (!activity.hasPgp()) {
2506            activity.showInstallPgpDialog();
2507            return;
2508        }
2509        if (conversation.getAccount().getPgpSignature() == null) {
2510            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2511            return;
2512        }
2513        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2514            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2515        }
2516        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2517            if (contact.getPgpKeyId() != 0) {
2518                xmppService.getPgpEngine().hasKey(contact,
2519                        new UiCallback<Contact>() {
2520
2521                            @Override
2522                            public void userInputRequired(PendingIntent pi, Contact contact) {
2523                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2524                            }
2525
2526                            @Override
2527                            public void success(Contact contact) {
2528                                encryptTextMessage(message);
2529                            }
2530
2531                            @Override
2532                            public void error(int error, Contact contact) {
2533                                activity.runOnUiThread(() -> Toast.makeText(activity,
2534                                        R.string.unable_to_connect_to_keychain,
2535                                        Toast.LENGTH_SHORT
2536                                ).show());
2537                                mSendingPgpMessage.set(false);
2538                            }
2539                        });
2540
2541            } else {
2542                showNoPGPKeyDialog(false, (dialog, which) -> {
2543                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2544                    xmppService.updateConversation(conversation);
2545                    message.setEncryption(Message.ENCRYPTION_NONE);
2546                    xmppService.sendMessage(message);
2547                    messageSent();
2548                });
2549            }
2550        } else {
2551            if (conversation.getMucOptions().pgpKeysInUse()) {
2552                if (!conversation.getMucOptions().everybodyHasKeys()) {
2553                    Toast warning = Toast
2554                            .makeText(getActivity(),
2555                                    R.string.missing_public_keys,
2556                                    Toast.LENGTH_LONG);
2557                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2558                    warning.show();
2559                }
2560                encryptTextMessage(message);
2561            } else {
2562                showNoPGPKeyDialog(true, (dialog, which) -> {
2563                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2564                    message.setEncryption(Message.ENCRYPTION_NONE);
2565                    xmppService.updateConversation(conversation);
2566                    xmppService.sendMessage(message);
2567                    messageSent();
2568                });
2569            }
2570        }
2571    }
2572
2573    public void encryptTextMessage(Message message) {
2574        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2575                new UiCallback<Message>() {
2576
2577                    @Override
2578                    public void userInputRequired(PendingIntent pi, Message message) {
2579                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2580                    }
2581
2582                    @Override
2583                    public void success(Message message) {
2584                        //TODO the following two call can be made before the callback
2585                        getActivity().runOnUiThread(() -> messageSent());
2586                    }
2587
2588                    @Override
2589                    public void error(final int error, Message message) {
2590                        getActivity().runOnUiThread(() -> {
2591                            doneSendingPgpMessage();
2592                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2593                        });
2594
2595                    }
2596                });
2597    }
2598
2599    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2600        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2601        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2602        if (plural) {
2603            builder.setTitle(getString(R.string.no_pgp_keys));
2604            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2605        } else {
2606            builder.setTitle(getString(R.string.no_pgp_key));
2607            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2608        }
2609        builder.setNegativeButton(getString(R.string.cancel), null);
2610        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2611        builder.create().show();
2612    }
2613
2614    public void appendText(String text, final boolean doNotAppend) {
2615        if (text == null) {
2616            return;
2617        }
2618        final Editable editable = this.binding.textinput.getText();
2619        String previous = editable == null ? "" : editable.toString();
2620        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2621            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2622            return;
2623        }
2624        if (UIHelper.isLastLineQuote(previous)) {
2625            text = '\n' + text;
2626        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2627            text = " " + text;
2628        }
2629        this.binding.textinput.append(text);
2630    }
2631
2632    @Override
2633    public boolean onEnterPressed() {
2634        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2635        final boolean enterIsSend = p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2636        if (enterIsSend) {
2637            sendMessage();
2638            return true;
2639        } else {
2640            return false;
2641        }
2642    }
2643
2644    @Override
2645    public void onTypingStarted() {
2646        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2647        if (service == null) {
2648            return;
2649        }
2650        Account.State status = conversation.getAccount().getStatus();
2651        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2652            service.sendChatState(conversation);
2653        }
2654        runOnUiThread(this::updateSendButton);
2655    }
2656
2657    @Override
2658    public void onTypingStopped() {
2659        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2660        if (service == null) {
2661            return;
2662        }
2663        Account.State status = conversation.getAccount().getStatus();
2664        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2665            service.sendChatState(conversation);
2666        }
2667    }
2668
2669    @Override
2670    public void onTextDeleted() {
2671        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2672        if (service == null) {
2673            return;
2674        }
2675        Account.State status = conversation.getAccount().getStatus();
2676        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
2677            service.sendChatState(conversation);
2678        }
2679        if (storeNextMessage()) {
2680            runOnUiThread(() -> {
2681                if (activity == null) {
2682                    return;
2683                }
2684                activity.onConversationsListItemUpdated();
2685            });
2686        }
2687        runOnUiThread(this::updateSendButton);
2688    }
2689
2690    @Override
2691    public void onTextChanged() {
2692        if (conversation != null && conversation.getCorrectingMessage() != null) {
2693            runOnUiThread(this::updateSendButton);
2694        }
2695    }
2696
2697    @Override
2698    public boolean onTabPressed(boolean repeated) {
2699        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2700            return false;
2701        }
2702        if (repeated) {
2703            completionIndex++;
2704        } else {
2705            lastCompletionLength = 0;
2706            completionIndex = 0;
2707            final String content = this.binding.textinput.getText().toString();
2708            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2709            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2710            firstWord = start == 0;
2711            incomplete = content.substring(start, lastCompletionCursor);
2712        }
2713        List<String> completions = new ArrayList<>();
2714        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2715            String name = user.getName();
2716            if (name != null && name.startsWith(incomplete)) {
2717                completions.add(name + (firstWord ? ": " : " "));
2718            }
2719        }
2720        Collections.sort(completions);
2721        if (completions.size() > completionIndex) {
2722            String completion = completions.get(completionIndex).substring(incomplete.length());
2723            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2724            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2725            lastCompletionLength = completion.length();
2726        } else {
2727            completionIndex = -1;
2728            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2729            lastCompletionLength = 0;
2730        }
2731        return true;
2732    }
2733
2734    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2735        try {
2736            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2737        } catch (final SendIntentException ignored) {
2738        }
2739    }
2740
2741    @Override
2742    public void onBackendConnected() {
2743        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2744        String uuid = pendingConversationsUuid.pop();
2745        if (uuid != null) {
2746            if (!findAndReInitByUuidOrArchive(uuid)) {
2747                return;
2748            }
2749        } else {
2750            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2751                clearPending();
2752                activity.onConversationArchived(conversation);
2753                return;
2754            }
2755        }
2756        ActivityResult activityResult = postponedActivityResult.pop();
2757        if (activityResult != null) {
2758            handleActivityResult(activityResult);
2759        }
2760        clearPending();
2761    }
2762
2763    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2764        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2765        if (conversation == null) {
2766            clearPending();
2767            activity.onConversationArchived(null);
2768            return false;
2769        }
2770        reInit(conversation);
2771        ScrollState scrollState = pendingScrollState.pop();
2772        String lastMessageUuid = pendingLastMessageUuid.pop();
2773        List<Attachment> attachments = pendingMediaPreviews.pop();
2774        if (scrollState != null) {
2775            setScrollPosition(scrollState, lastMessageUuid);
2776        }
2777        if (attachments != null && attachments.size() > 0) {
2778            Log.d(Config.LOGTAG, "had attachments on restore");
2779            mediaPreviewAdapter.addMediaPreviews(attachments);
2780            toggleInputMethod();
2781        }
2782        return true;
2783    }
2784
2785    private void clearPending() {
2786        if (postponedActivityResult.clear()) {
2787            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2788        }
2789        if (pendingScrollState.clear()) {
2790            Log.e(Config.LOGTAG, "cleared scroll state");
2791        }
2792        if (pendingTakePhotoUri.clear()) {
2793            Log.e(Config.LOGTAG, "cleared pending photo uri");
2794        }
2795        if (pendingConversationsUuid.clear()) {
2796            Log.e(Config.LOGTAG, "cleared pending conversations uuid");
2797        }
2798        if (pendingMediaPreviews.clear()) {
2799            Log.e(Config.LOGTAG, "cleared pending media previews");
2800        }
2801    }
2802
2803    public Conversation getConversation() {
2804        return conversation;
2805    }
2806
2807    @Override
2808    public void onContactPictureLongClicked(View v, final Message message) {
2809        final String fingerprint;
2810        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2811            fingerprint = "pgp";
2812        } else {
2813            fingerprint = message.getFingerprint();
2814        }
2815        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2816        final Contact contact = message.getContact();
2817        if (message.getStatus() <= Message.STATUS_RECEIVED && (contact == null || !contact.isSelf())) {
2818            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2819                final Jid cp = message.getCounterpart();
2820                if (cp == null || cp.isBareJid()) {
2821                    return;
2822                }
2823                final Jid tcp = message.getTrueCounterpart();
2824                final User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2825                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2826                popupMenu.inflate(R.menu.muc_details_context);
2827                final Menu menu = popupMenu.getMenu();
2828                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2829                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, activity, fingerprint));
2830            } else {
2831                popupMenu.inflate(R.menu.one_on_one_context);
2832                popupMenu.setOnMenuItemClickListener(item -> {
2833                    switch (item.getItemId()) {
2834                        case R.id.action_contact_details:
2835                            activity.switchToContactDetails(message.getContact(), fingerprint);
2836                            break;
2837                        case R.id.action_show_qr_code:
2838                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
2839                            break;
2840                    }
2841                    return true;
2842                });
2843            }
2844        } else {
2845            popupMenu.inflate(R.menu.account_context);
2846            final Menu menu = popupMenu.getMenu();
2847            menu.findItem(R.id.action_manage_accounts).setVisible(QuickConversationsService.isConversations());
2848            popupMenu.setOnMenuItemClickListener(item -> {
2849                switch (item.getItemId()) {
2850                    case R.id.action_show_qr_code:
2851                        activity.showQrCode(conversation.getAccount().getShareableUri());
2852                        break;
2853                    case R.id.action_account_details:
2854                        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2855                        break;
2856                    case R.id.action_manage_accounts:
2857                        AccountUtils.launchManageAccounts(activity);
2858                        break;
2859                }
2860                return true;
2861            });
2862        }
2863        popupMenu.show();
2864    }
2865
2866    @Override
2867    public void onContactPictureClicked(Message message) {
2868        String fingerprint;
2869        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2870            fingerprint = "pgp";
2871        } else {
2872            fingerprint = message.getFingerprint();
2873        }
2874        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
2875        if (received) {
2876            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
2877                Jid tcp = message.getTrueCounterpart();
2878                Jid user = message.getCounterpart();
2879                if (user != null && !user.isBareJid()) {
2880                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
2881                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
2882                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
2883                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
2884                        }
2885                        highlightInConference(user.getResource());
2886                    } else {
2887                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
2888                    }
2889                }
2890                return;
2891            } else {
2892                if (!message.getContact().isSelf()) {
2893                    activity.switchToContactDetails(message.getContact(), fingerprint);
2894                    return;
2895                }
2896            }
2897        }
2898        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2899    }
2900}