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