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_ATTACHMENTS = 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() + ".media_previews";
 143    public static final String STATE_MEDIA_PREVIEWS = ConversationFragment.class.getName() + ".take_photo_uri";
 144    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 145
 146    private final List<Message> messageList = new ArrayList<>();
 147    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 148    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 149    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 150    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 151    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 152    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 153    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 154    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 155    public Uri mPendingEditorContent = null;
 156    protected MessageAdapter messageListAdapter;
 157    private MediaPreviewAdapter mediaPreviewAdapter;
 158    private String lastMessageUuid = null;
 159    private Conversation conversation;
 160    private FragmentConversationBinding binding;
 161    private Toast messageLoaderToast;
 162    private ConversationsActivity activity;
 163    private boolean reInitRequiredOnStart = true;
 164    private OnClickListener clickToMuc = new OnClickListener() {
 165
 166        @Override
 167        public void onClick(View v) {
 168            Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 169            intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 170            intent.putExtra("uuid", conversation.getUuid());
 171            startActivity(intent);
 172        }
 173    };
 174    private OnClickListener leaveMuc = new OnClickListener() {
 175
 176        @Override
 177        public void onClick(View v) {
 178            activity.xmppConnectionService.archiveConversation(conversation);
 179        }
 180    };
 181    private OnClickListener joinMuc = new OnClickListener() {
 182
 183        @Override
 184        public void onClick(View v) {
 185            activity.xmppConnectionService.joinMuc(conversation);
 186        }
 187    };
 188    private OnClickListener enterPassword = new OnClickListener() {
 189
 190        @Override
 191        public void onClick(View v) {
 192            MucOptions muc = conversation.getMucOptions();
 193            String password = muc.getPassword();
 194            if (password == null) {
 195                password = "";
 196            }
 197            activity.quickPasswordEdit(password, value -> {
 198                activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 199                return null;
 200            });
 201        }
 202    };
 203    private OnScrollListener mOnScrollListener = new OnScrollListener() {
 204
 205        @Override
 206        public void onScrollStateChanged(AbsListView view, int scrollState) {
 207            if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 208                fireReadEvent();
 209            }
 210        }
 211
 212        @Override
 213        public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 214            toggleScrollDownButton(view);
 215            synchronized (ConversationFragment.this.messageList) {
 216                if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 217                    long timestamp;
 218                    if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 219                        timestamp = messageList.get(1).getTimeSent();
 220                    } else {
 221                        timestamp = messageList.get(0).getTimeSent();
 222                    }
 223                    activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 224                        @Override
 225                        public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 226                            if (ConversationFragment.this.conversation != conversation) {
 227                                conversation.messagesLoaded.set(true);
 228                                return;
 229                            }
 230                            runOnUiThread(() -> {
 231                                synchronized (messageList) {
 232                                    final int oldPosition = binding.messagesView.getFirstVisiblePosition();
 233                                    Message message = null;
 234                                    int childPos;
 235                                    for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 236                                        message = messageList.get(oldPosition + childPos);
 237                                        if (message.getType() != Message.TYPE_STATUS) {
 238                                            break;
 239                                        }
 240                                    }
 241                                    final String uuid = message != null ? message.getUuid() : null;
 242                                    View v = binding.messagesView.getChildAt(childPos);
 243                                    final int pxOffset = (v == null) ? 0 : v.getTop();
 244                                    ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 245                                    try {
 246                                        updateStatusMessages();
 247                                    } catch (IllegalStateException e) {
 248                                        Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 249                                    }
 250                                    messageListAdapter.notifyDataSetChanged();
 251                                    int pos = Math.max(getIndexOf(uuid, messageList), 0);
 252                                    binding.messagesView.setSelectionFromTop(pos, pxOffset);
 253                                    if (messageLoaderToast != null) {
 254                                        messageLoaderToast.cancel();
 255                                    }
 256                                    conversation.messagesLoaded.set(true);
 257                                }
 258                            });
 259                        }
 260
 261                        @Override
 262                        public void informUser(final int resId) {
 263
 264                            runOnUiThread(() -> {
 265                                if (messageLoaderToast != null) {
 266                                    messageLoaderToast.cancel();
 267                                }
 268                                if (ConversationFragment.this.conversation != conversation) {
 269                                    return;
 270                                }
 271                                messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 272                                messageLoaderToast.show();
 273                            });
 274
 275                        }
 276                    });
 277
 278                }
 279            }
 280        }
 281    };
 282    private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 283        @Override
 284        public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 285            // try to get permission to read the image, if applicable
 286            if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 287                try {
 288                    inputContentInfo.requestPermission();
 289                } catch (Exception e) {
 290                    Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 291                    Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()), Toast.LENGTH_LONG
 292                    ).show();
 293                    return false;
 294                }
 295            }
 296            if (hasPermissions(REQUEST_ADD_EDITOR_CONTENT, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 297                attachEditorContentToConversation(inputContentInfo.getContentUri());
 298            } else {
 299                mPendingEditorContent = inputContentInfo.getContentUri();
 300            }
 301            return true;
 302        }
 303    };
 304    private Message selectedMessage;
 305    private OnClickListener mEnableAccountListener = new OnClickListener() {
 306        @Override
 307        public void onClick(View v) {
 308            final Account account = conversation == null ? null : conversation.getAccount();
 309            if (account != null) {
 310                account.setOption(Account.OPTION_DISABLED, false);
 311                activity.xmppConnectionService.updateAccount(account);
 312            }
 313        }
 314    };
 315    private OnClickListener mUnblockClickListener = new OnClickListener() {
 316        @Override
 317        public void onClick(final View v) {
 318            v.post(() -> v.setVisibility(View.INVISIBLE));
 319            if (conversation.isDomainBlocked()) {
 320                BlockContactDialog.show(activity, conversation);
 321            } else {
 322                unblockConversation(conversation);
 323            }
 324        }
 325    };
 326    private OnClickListener mBlockClickListener = this::showBlockSubmenu;
 327    private OnClickListener mAddBackClickListener = new OnClickListener() {
 328
 329        @Override
 330        public void onClick(View v) {
 331            final Contact contact = conversation == null ? null : conversation.getContact();
 332            if (contact != null) {
 333                activity.xmppConnectionService.createContact(contact, true);
 334                activity.switchToContactDetails(contact);
 335            }
 336        }
 337    };
 338    private View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 339    private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 340        @Override
 341        public void onClick(View v) {
 342            final Contact contact = conversation == null ? null : conversation.getContact();
 343            if (contact != null) {
 344                activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 345                        activity.xmppConnectionService.getPresenceGenerator()
 346                                .sendPresenceUpdatesTo(contact));
 347                hideSnackbar();
 348            }
 349        }
 350    };
 351    protected OnClickListener clickToDecryptListener = new OnClickListener() {
 352
 353        @Override
 354        public void onClick(View v) {
 355            PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 356            if (pendingIntent != null) {
 357                try {
 358                    getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(),
 359                            REQUEST_DECRYPT_PGP,
 360                            null,
 361                            0,
 362                            0,
 363                            0);
 364                } catch (SendIntentException e) {
 365                    Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 366                    conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 367                }
 368            }
 369            updateSnackBar(conversation);
 370        }
 371    };
 372    private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 373    private OnEditorActionListener mEditorActionListener = (v, actionId, event) -> {
 374        if (actionId == EditorInfo.IME_ACTION_SEND) {
 375            InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 376            if (imm != null && imm.isFullscreenMode()) {
 377                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 378            }
 379            sendMessage();
 380            return true;
 381        } else {
 382            return false;
 383        }
 384    };
 385    private OnClickListener mScrollButtonListener = new OnClickListener() {
 386
 387        @Override
 388        public void onClick(View v) {
 389            stopScrolling();
 390            setSelection(binding.messagesView.getCount() - 1, true);
 391        }
 392    };
 393    private OnClickListener mSendButtonListener = new OnClickListener() {
 394
 395        @Override
 396        public void onClick(View v) {
 397            Object tag = v.getTag();
 398            if (tag instanceof SendButtonAction) {
 399                SendButtonAction action = (SendButtonAction) tag;
 400                switch (action) {
 401                    case TAKE_PHOTO:
 402                    case RECORD_VIDEO:
 403                    case SEND_LOCATION:
 404                    case RECORD_VOICE:
 405                    case CHOOSE_PICTURE:
 406                        attachFile(action.toChoice());
 407                        break;
 408                    case CANCEL:
 409                        if (conversation != null) {
 410                            if (conversation.setCorrectingMessage(null)) {
 411                                binding.textinput.setText("");
 412                                binding.textinput.append(conversation.getDraftMessage());
 413                                conversation.setDraftMessage(null);
 414                            } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 415                                conversation.setNextCounterpart(null);
 416                            }
 417                            updateChatMsgHint();
 418                            updateSendButton();
 419                            updateEditablity();
 420                        }
 421                        break;
 422                    default:
 423                        sendMessage();
 424                }
 425            } else {
 426                sendMessage();
 427            }
 428        }
 429    };
 430    private int completionIndex = 0;
 431    private int lastCompletionLength = 0;
 432    private String incomplete;
 433    private int lastCompletionCursor;
 434    private boolean firstWord = false;
 435    private Message mPendingDownloadableMessage;
 436
 437    private static ConversationFragment findConversationFragment(Activity activity) {
 438        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 439        if (fragment != null && fragment instanceof ConversationFragment) {
 440            return (ConversationFragment) fragment;
 441        }
 442        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 443        if (fragment != null && fragment instanceof ConversationFragment) {
 444            return (ConversationFragment) fragment;
 445        }
 446        return null;
 447    }
 448
 449    public static void startStopPending(Activity activity) {
 450        ConversationFragment fragment = findConversationFragment(activity);
 451        if (fragment != null) {
 452            fragment.messageListAdapter.startStopPending();
 453        }
 454    }
 455
 456    public static void downloadFile(Activity activity, Message message) {
 457        ConversationFragment fragment = findConversationFragment(activity);
 458        if (fragment != null) {
 459            fragment.startDownloadable(message);
 460        }
 461    }
 462
 463    public static void registerPendingMessage(Activity activity, Message message) {
 464        ConversationFragment fragment = findConversationFragment(activity);
 465        if (fragment != null) {
 466            fragment.pendingMessage.push(message);
 467        }
 468    }
 469
 470    public static void openPendingMessage(Activity activity) {
 471        ConversationFragment fragment = findConversationFragment(activity);
 472        if (fragment != null) {
 473            Message message = fragment.pendingMessage.pop();
 474            if (message != null) {
 475                fragment.messageListAdapter.openDownloadable(message);
 476            }
 477        }
 478    }
 479
 480    public static Conversation getConversation(Activity activity) {
 481        return getConversation(activity, R.id.secondary_fragment);
 482    }
 483
 484    private static Conversation getConversation(Activity activity, @IdRes int res) {
 485        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 486        if (fragment != null && fragment instanceof ConversationFragment) {
 487            return ((ConversationFragment) fragment).getConversation();
 488        } else {
 489            return null;
 490        }
 491    }
 492
 493    public static ConversationFragment get(Activity activity) {
 494        FragmentManager fragmentManager = activity.getFragmentManager();
 495        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 496        if (fragment != null && fragment instanceof ConversationFragment) {
 497            return (ConversationFragment) fragment;
 498        } else {
 499            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 500            return fragment != null && fragment instanceof ConversationFragment ? (ConversationFragment) fragment : null;
 501        }
 502    }
 503
 504    public static Conversation getConversationReliable(Activity activity) {
 505        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 506        if (conversation != null) {
 507            return conversation;
 508        }
 509        return getConversation(activity, R.id.main_fragment);
 510    }
 511
 512    private static boolean allGranted(int[] grantResults) {
 513        for (int grantResult : grantResults) {
 514            if (grantResult != PackageManager.PERMISSION_GRANTED) {
 515                return false;
 516            }
 517        }
 518        return true;
 519    }
 520
 521    private static boolean writeGranted(int[] grantResults, String[] permission) {
 522        for (int i = 0; i < grantResults.length; ++i) {
 523            if (Manifest.permission.WRITE_EXTERNAL_STORAGE.equals(permission[i])) {
 524                return grantResults[i] == PackageManager.PERMISSION_GRANTED;
 525            }
 526        }
 527        return false;
 528    }
 529
 530    private static String getFirstDenied(int[] grantResults, String[] permissions) {
 531        for (int i = 0; i < grantResults.length; ++i) {
 532            if (grantResults[i] == PackageManager.PERMISSION_DENIED) {
 533                return permissions[i];
 534            }
 535        }
 536        return null;
 537    }
 538
 539    private static boolean scrolledToBottom(AbsListView listView) {
 540        final int count = listView.getCount();
 541        if (count == 0) {
 542            return true;
 543        } else if (listView.getLastVisiblePosition() == count - 1) {
 544            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 545            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 546        } else {
 547            return false;
 548        }
 549    }
 550
 551    private void toggleScrollDownButton() {
 552        toggleScrollDownButton(binding.messagesView);
 553    }
 554
 555    private void toggleScrollDownButton(AbsListView listView) {
 556        if (conversation == null) {
 557            return;
 558        }
 559        if (scrolledToBottom(listView)) {
 560            lastMessageUuid = null;
 561            hideUnreadMessagesCount();
 562        } else {
 563            binding.scrollToBottomButton.setEnabled(true);
 564            binding.scrollToBottomButton.show();
 565            if (lastMessageUuid == null) {
 566                lastMessageUuid = conversation.getLatestMessage().getUuid();
 567            }
 568            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 569                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 570            }
 571        }
 572    }
 573
 574    private int getIndexOf(String uuid, List<Message> messages) {
 575        if (uuid == null) {
 576            return messages.size() - 1;
 577        }
 578        for (int i = 0; i < messages.size(); ++i) {
 579            if (uuid.equals(messages.get(i).getUuid())) {
 580                return i;
 581            } else {
 582                Message next = messages.get(i);
 583                while (next != null && next.wasMergedIntoPrevious()) {
 584                    if (uuid.equals(next.getUuid())) {
 585                        return i;
 586                    }
 587                    next = next.next();
 588                }
 589
 590            }
 591        }
 592        return -1;
 593    }
 594
 595    private ScrollState getScrollPosition() {
 596        final ListView listView = this.binding.messagesView;
 597        if (listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 598            return null;
 599        } else {
 600            final int pos = listView.getFirstVisiblePosition();
 601            final View view = listView.getChildAt(0);
 602            if (view == null) {
 603                return null;
 604            } else {
 605                return new ScrollState(pos, view.getTop());
 606            }
 607        }
 608    }
 609
 610    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 611        if (scrollPosition != null) {
 612
 613            this.lastMessageUuid = lastMessageUuid;
 614            if (lastMessageUuid != null) {
 615                binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 616            }
 617            //TODO maybe this needs a 'post'
 618            this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 619            toggleScrollDownButton();
 620        }
 621    }
 622
 623    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 624        if (conversation == null) {
 625            return;
 626        }
 627        activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 628
 629            @Override
 630            public void success(Message message) {
 631
 632            }
 633
 634            @Override
 635            public void error(int errorCode, Message object) {
 636                //TODO show possible pgp error
 637            }
 638
 639            @Override
 640            public void userInputRequried(PendingIntent pi, Message object) {
 641
 642            }
 643        });
 644    }
 645
 646    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 647        if (conversation == null) {
 648            return;
 649        }
 650        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 651        prepareFileToast.show();
 652        activity.delegateUriPermissionsToService(uri);
 653        activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 654            @Override
 655            public void inform(final String text) {
 656                hidePrepareFileToast(prepareFileToast);
 657                runOnUiThread(() -> activity.replaceToast(text));
 658            }
 659
 660            @Override
 661            public void success(Message message) {
 662                runOnUiThread(() -> activity.hideToast());
 663                hidePrepareFileToast(prepareFileToast);
 664            }
 665
 666            @Override
 667            public void error(final int errorCode, Message message) {
 668                hidePrepareFileToast(prepareFileToast);
 669                runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 670
 671            }
 672
 673            @Override
 674            public void userInputRequried(PendingIntent pi, Message message) {
 675                hidePrepareFileToast(prepareFileToast);
 676            }
 677        });
 678    }
 679
 680    public void attachEditorContentToConversation(Uri uri) {
 681        mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 682        toggleInputMethod();
 683    }
 684
 685    private void attachImageToConversation(Conversation conversation, Uri uri) {
 686        if (conversation == null) {
 687            return;
 688        }
 689        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 690        prepareFileToast.show();
 691        activity.delegateUriPermissionsToService(uri);
 692        activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 693                new UiCallback<Message>() {
 694
 695                    @Override
 696                    public void userInputRequried(PendingIntent pi, Message object) {
 697                        hidePrepareFileToast(prepareFileToast);
 698                    }
 699
 700                    @Override
 701                    public void success(Message message) {
 702                        hidePrepareFileToast(prepareFileToast);
 703                    }
 704
 705                    @Override
 706                    public void error(final int error, Message message) {
 707                        hidePrepareFileToast(prepareFileToast);
 708                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 709                    }
 710                });
 711    }
 712
 713    private void hidePrepareFileToast(final Toast prepareFileToast) {
 714        if (prepareFileToast != null && activity != null) {
 715            activity.runOnUiThread(prepareFileToast::cancel);
 716        }
 717    }
 718
 719    private void sendMessage() {
 720        if (mediaPreviewAdapter.hasAttachments()) {
 721            commitAttachments();
 722            return;
 723        }
 724        final Editable text = this.binding.textinput.getText();
 725        final String body =  text == null ? "" : text.toString();
 726        final Conversation conversation = this.conversation;
 727        if (body.length() == 0 || conversation == null) {
 728            return;
 729        }
 730        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 731            return;
 732        }
 733        final Message message;
 734        if (conversation.getCorrectingMessage() == null) {
 735            message = new Message(conversation, body, conversation.getNextEncryption());
 736            if (conversation.getMode() == Conversation.MODE_MULTI) {
 737                final Jid nextCounterpart = conversation.getNextCounterpart();
 738                if (nextCounterpart != null) {
 739                    message.setCounterpart(nextCounterpart);
 740                    message.setTrueCounterpart(conversation.getMucOptions().getTrueCounterpart(nextCounterpart));
 741                    message.setType(Message.TYPE_PRIVATE);
 742                }
 743            }
 744        } else {
 745            message = conversation.getCorrectingMessage();
 746            message.setBody(body);
 747            message.setEdited(message.getUuid());
 748            message.setUuid(UUID.randomUUID().toString());
 749        }
 750        switch (conversation.getNextEncryption()) {
 751            case Message.ENCRYPTION_PGP:
 752                sendPgpMessage(message);
 753                break;
 754            default:
 755                sendMessage(message);
 756        }
 757    }
 758
 759    protected boolean trustKeysIfNeeded(int requestCode) {
 760        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 761        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 762        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 763        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 764        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 765        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 766        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 767        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 768        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 769            axolotlService.createSessionsIfNeeded(conversation);
 770            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 771            String[] contacts = new String[targets.size()];
 772            for (int i = 0; i < contacts.length; ++i) {
 773                contacts[i] = targets.get(i).toString();
 774            }
 775            intent.putExtra("contacts", contacts);
 776            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toString());
 777            intent.putExtra("conversation", conversation.getUuid());
 778            startActivityForResult(intent, requestCode);
 779            return true;
 780        } else {
 781            return false;
 782        }
 783    }
 784
 785    public void updateChatMsgHint() {
 786        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 787        if (conversation.getCorrectingMessage() != null) {
 788            this.binding.textinput.setHint(R.string.send_corrected_message);
 789        } else if (multi && conversation.getNextCounterpart() != null) {
 790            this.binding.textinput.setHint(getString(
 791                    R.string.send_private_message_to,
 792                    conversation.getNextCounterpart().getResource()));
 793        } else if (multi && !conversation.getMucOptions().participating()) {
 794            this.binding.textinput.setHint(R.string.you_are_not_participating);
 795        } else {
 796            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 797            getActivity().invalidateOptionsMenu();
 798        }
 799    }
 800
 801    public void setupIme() {
 802        this.binding.textinput.refreshIme();
 803    }
 804
 805    private void handleActivityResult(ActivityResult activityResult) {
 806        if (activityResult.resultCode == Activity.RESULT_OK) {
 807            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 808        } else {
 809            handleNegativeActivityResult(activityResult.requestCode);
 810        }
 811    }
 812
 813    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 814        switch (requestCode) {
 815            case REQUEST_TRUST_KEYS_TEXT:
 816                sendMessage();
 817                break;
 818            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 819                commitAttachments();
 820                break;
 821            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 822                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 823                mediaPreviewAdapter.addMediaPreviews(imageUris);
 824                toggleInputMethod();
 825                break;
 826            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 827                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 828                if (takePhotoUri != null) {
 829                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 830                    toggleInputMethod();
 831                } else {
 832                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 833                }
 834                break;
 835            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 836            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 837            case ATTACHMENT_CHOICE_RECORD_VOICE:
 838                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 839                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 840                mediaPreviewAdapter.addMediaPreviews(fileUris);
 841                toggleInputMethod();
 842                break;
 843            case ATTACHMENT_CHOICE_LOCATION:
 844                double latitude = data.getDoubleExtra("latitude", 0);
 845                double longitude = data.getDoubleExtra("longitude", 0);
 846                Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 847                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 848                toggleInputMethod();
 849                break;
 850            case REQUEST_INVITE_TO_CONVERSATION:
 851                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 852                if (invite != null) {
 853                    if (invite.execute(activity)) {
 854                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 855                        activity.mToast.show();
 856                    }
 857                }
 858                break;
 859        }
 860    }
 861
 862    private void commitAttachments() {
 863        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 864            return;
 865        }
 866        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 867        final PresenceSelector.OnPresenceSelected callback = () -> {
 868            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 869                final Attachment attachment = i.next();
 870                if (attachment.getType() == Attachment.Type.LOCATION) {
 871                    attachLocationToConversation(conversation, attachment.getUri());
 872                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 873                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 874                    attachImageToConversation(conversation, attachment.getUri());
 875                } else {
 876                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 877                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 878                }
 879            }
 880            mediaPreviewAdapter.notifyDataSetChanged();
 881            toggleInputMethod();
 882        };
 883        if (conversation == null || conversation.getMode() == Conversation.MODE_MULTI || FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation))) {
 884            callback.onPresenceSelected();
 885        } else {
 886            activity.selectPresence(conversation, callback);
 887        }
 888    }
 889
 890    public void toggleInputMethod() {
 891        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 892        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 893        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 894        updateSendButton();
 895    }
 896
 897    private void handleNegativeActivityResult(int requestCode) {
 898        switch (requestCode) {
 899            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 900                if (pendingTakePhotoUri.clear()) {
 901                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 902                }
 903                break;
 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, cp) : 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            selectPresenceToAttachFile(attachmentChoice);
1396        }
1397    }
1398
1399    @Override
1400    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
1401        if (grantResults.length > 0) {
1402            if (allGranted(grantResults)) {
1403                if (requestCode == REQUEST_START_DOWNLOAD) {
1404                    if (this.mPendingDownloadableMessage != null) {
1405                        startDownloadable(this.mPendingDownloadableMessage);
1406                    }
1407                } else if (requestCode == REQUEST_ADD_EDITOR_CONTENT) {
1408                    if (this.mPendingEditorContent != null) {
1409                        attachEditorContentToConversation(this.mPendingEditorContent);
1410                    }
1411                } else {
1412                    attachFile(requestCode);
1413                }
1414            } else {
1415                @StringRes int res;
1416                String firstDenied = getFirstDenied(grantResults, permissions);
1417                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1418                    res = R.string.no_microphone_permission;
1419                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1420                    res = R.string.no_camera_permission;
1421                } else {
1422                    res = R.string.no_storage_permission;
1423                }
1424                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1425            }
1426        }
1427        if (writeGranted(grantResults, permissions)) {
1428            if (activity != null && activity.xmppConnectionService != null) {
1429                activity.xmppConnectionService.restartFileObserver();
1430            }
1431        }
1432    }
1433
1434    public void startDownloadable(Message message) {
1435        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1436            this.mPendingDownloadableMessage = message;
1437            return;
1438        }
1439        Transferable transferable = message.getTransferable();
1440        if (transferable != null) {
1441            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1442                createNewConnection(message);
1443                return;
1444            }
1445            if (!transferable.start()) {
1446                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1447                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1448            }
1449        } else if (message.treatAsDownloadable()) {
1450            createNewConnection(message);
1451        }
1452    }
1453
1454    private void createNewConnection(final Message message) {
1455        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1456            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1457            return;
1458        }
1459        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1460    }
1461
1462    @SuppressLint("InflateParams")
1463    protected void clearHistoryDialog(final Conversation conversation) {
1464        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1465        builder.setTitle(getString(R.string.clear_conversation_history));
1466        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1467        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1468        builder.setView(dialogView);
1469        builder.setNegativeButton(getString(R.string.cancel), null);
1470        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1471            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1472            if (endConversationCheckBox.isChecked()) {
1473                this.activity.xmppConnectionService.archiveConversation(conversation);
1474                this.activity.onConversationArchived(conversation);
1475            } else {
1476                activity.onConversationsListItemUpdated();
1477                refresh();
1478            }
1479        });
1480        builder.create().show();
1481    }
1482
1483    protected void muteConversationDialog(final Conversation conversation) {
1484        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1485        builder.setTitle(R.string.disable_notifications);
1486        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1487        final CharSequence[] labels = new CharSequence[durations.length];
1488        for (int i = 0; i < durations.length; ++i) {
1489            if (durations[i] == -1) {
1490                labels[i] = getString(R.string.until_further_notice);
1491            } else {
1492                labels[i] = TimeframeUtils.resolve(activity, 1000L * durations[i]);
1493            }
1494        }
1495        builder.setItems(labels, (dialog, which) -> {
1496            final long till;
1497            if (durations[which] == -1) {
1498                till = Long.MAX_VALUE;
1499            } else {
1500                till = System.currentTimeMillis() + (durations[which] * 1000);
1501            }
1502            conversation.setMutedTill(till);
1503            activity.xmppConnectionService.updateConversation(conversation);
1504            activity.onConversationsListItemUpdated();
1505            refresh();
1506            getActivity().invalidateOptionsMenu();
1507        });
1508        builder.create().show();
1509    }
1510
1511    private boolean hasPermissions(int requestCode, String... permissions) {
1512        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1513            final List<String> missingPermissions = new ArrayList<>();
1514            for (String permission : permissions) {
1515                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1516                    continue;
1517                }
1518                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1519                    missingPermissions.add(permission);
1520                }
1521            }
1522            if (missingPermissions.size() == 0) {
1523                return true;
1524            } else {
1525                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1526                return false;
1527            }
1528        } else {
1529            return true;
1530        }
1531    }
1532
1533    public void unmuteConversation(final Conversation conversation) {
1534        conversation.setMutedTill(0);
1535        this.activity.xmppConnectionService.updateConversation(conversation);
1536        this.activity.onConversationsListItemUpdated();
1537        refresh();
1538        getActivity().invalidateOptionsMenu();
1539    }
1540
1541    protected void selectPresenceToAttachFile(final int attachmentChoice) {
1542        final Account account = conversation.getAccount();
1543        final PresenceSelector.OnPresenceSelected callback = () -> {
1544            Intent intent = new Intent();
1545            boolean chooser = false;
1546            switch (attachmentChoice) {
1547                case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1548                    intent.setAction(Intent.ACTION_GET_CONTENT);
1549                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1550                    intent.setType("image/*");
1551                    chooser = true;
1552                    break;
1553                case ATTACHMENT_CHOICE_RECORD_VIDEO:
1554                    intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1555                    break;
1556                case ATTACHMENT_CHOICE_TAKE_PHOTO:
1557                    final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1558                    pendingTakePhotoUri.push(uri);
1559                    intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1560                    intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1561                    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1562                    intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1563                    break;
1564                case ATTACHMENT_CHOICE_CHOOSE_FILE:
1565                    chooser = true;
1566                    intent.setType("*/*");
1567                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1568                    intent.addCategory(Intent.CATEGORY_OPENABLE);
1569                    intent.setAction(Intent.ACTION_GET_CONTENT);
1570                    break;
1571                case ATTACHMENT_CHOICE_RECORD_VOICE:
1572                    intent = new Intent(getActivity(), RecordingActivity.class);
1573                    break;
1574                case ATTACHMENT_CHOICE_LOCATION:
1575                    intent = GeoHelper.getFetchIntent(activity);
1576                    break;
1577            }
1578            if (intent.resolveActivity(getActivity().getPackageManager()) != null) {
1579                if (chooser) {
1580                    startActivityForResult(
1581                            Intent.createChooser(intent, getString(R.string.perform_action_with)),
1582                            attachmentChoice);
1583                } else {
1584                    startActivityForResult(intent, attachmentChoice);
1585                }
1586            }
1587        };
1588        if (account.httpUploadAvailable() || attachmentChoice == ATTACHMENT_CHOICE_LOCATION) {
1589            conversation.setNextCounterpart(null);
1590            callback.onPresenceSelected();
1591        } else {
1592            activity.selectPresence(conversation, callback);
1593        }
1594    }
1595
1596    @Override
1597    public void onResume() {
1598        super.onResume();
1599        binding.messagesView.post(this::fireReadEvent);
1600    }
1601
1602    private void fireReadEvent() {
1603        if (activity != null && this.conversation != null) {
1604            String uuid = getLastVisibleMessageUuid();
1605            if (uuid != null) {
1606                activity.onConversationRead(this.conversation, uuid);
1607            }
1608        }
1609    }
1610
1611    private String getLastVisibleMessageUuid() {
1612        if (binding == null) {
1613            return null;
1614        }
1615        synchronized (this.messageList) {
1616            int pos = binding.messagesView.getLastVisiblePosition();
1617            if (pos >= 0) {
1618                Message message = null;
1619                for (int i = pos; i >= 0; --i) {
1620                    try {
1621                        message = (Message) binding.messagesView.getItemAtPosition(i);
1622                    } catch (IndexOutOfBoundsException e) {
1623                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1624                        continue;
1625                    }
1626                    if (message.getType() != Message.TYPE_STATUS) {
1627                        break;
1628                    }
1629                }
1630                if (message != null) {
1631                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1632                        message = message.next();
1633                    }
1634                    return message.getUuid();
1635                }
1636            }
1637        }
1638        return null;
1639    }
1640
1641    private void showErrorMessage(final Message message) {
1642        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1643        builder.setTitle(R.string.error_message);
1644        builder.setMessage(message.getErrorMessage());
1645        builder.setPositiveButton(R.string.confirm, null);
1646        builder.create().show();
1647    }
1648
1649
1650    private void deleteFile(final Message message) {
1651        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1652        builder.setNegativeButton(R.string.cancel, null);
1653        builder.setTitle(R.string.delete_file_dialog);
1654        builder.setMessage(R.string.delete_file_dialog_msg);
1655        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1656            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1657                message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1658                activity.onConversationsListItemUpdated();
1659                refresh();
1660            }
1661        });
1662        builder.create().show();
1663
1664    }
1665
1666    private void resendMessage(final Message message) {
1667        if (message.isFileOrImage()) {
1668            if (!(message.getConversation() instanceof Conversation)) {
1669                return;
1670            }
1671            final Conversation conversation = (Conversation) message.getConversation();
1672            DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1673            if (file.exists()) {
1674                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1675                if (!message.hasFileOnRemoteHost()
1676                        && xmppConnection != null
1677                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1678                    activity.selectPresence(conversation, () -> {
1679                        message.setCounterpart(conversation.getNextCounterpart());
1680                        activity.xmppConnectionService.resendFailedMessages(message);
1681                        new Handler().post(() -> {
1682                            int size = messageList.size();
1683                            this.binding.messagesView.setSelection(size - 1);
1684                        });
1685                    });
1686                    return;
1687                }
1688            } else {
1689                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1690                message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1691                activity.onConversationsListItemUpdated();
1692                refresh();
1693                return;
1694            }
1695        }
1696        activity.xmppConnectionService.resendFailedMessages(message);
1697        new Handler().post(() -> {
1698            int size = messageList.size();
1699            this.binding.messagesView.setSelection(size - 1);
1700        });
1701    }
1702
1703    private void cancelTransmission(Message message) {
1704        Transferable transferable = message.getTransferable();
1705        if (transferable != null) {
1706            transferable.cancel();
1707        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1708            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED);
1709        }
1710    }
1711
1712    private void retryDecryption(Message message) {
1713        message.setEncryption(Message.ENCRYPTION_PGP);
1714        activity.onConversationsListItemUpdated();
1715        refresh();
1716        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1717    }
1718
1719    public void privateMessageWith(final Jid counterpart) {
1720        if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1721            activity.xmppConnectionService.sendChatState(conversation);
1722        }
1723        this.binding.textinput.setText("");
1724        this.conversation.setNextCounterpart(counterpart);
1725        updateChatMsgHint();
1726        updateSendButton();
1727        updateEditablity();
1728    }
1729
1730    private void correctMessage(Message message) {
1731        while (message.mergeable(message.next())) {
1732            message = message.next();
1733        }
1734        this.conversation.setCorrectingMessage(message);
1735        final Editable editable = binding.textinput.getText();
1736        this.conversation.setDraftMessage(editable.toString());
1737        this.binding.textinput.setText("");
1738        this.binding.textinput.append(message.getBody());
1739
1740    }
1741
1742    private void highlightInConference(String nick) {
1743        final Editable editable = this.binding.textinput.getText();
1744        String oldString = editable.toString().trim();
1745        final int pos = this.binding.textinput.getSelectionStart();
1746        if (oldString.isEmpty() || pos == 0) {
1747            editable.insert(0, nick + ": ");
1748        } else {
1749            final char before = editable.charAt(pos - 1);
1750            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1751            if (before == '\n') {
1752                editable.insert(pos, nick + ": ");
1753            } else {
1754                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1755                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1756                        editable.insert(pos - 2, ", " + nick);
1757                        return;
1758                    }
1759                }
1760                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1761                if (Character.isWhitespace(after)) {
1762                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1763                }
1764            }
1765        }
1766    }
1767
1768    @Override
1769    public void startActivityForResult(Intent intent, int requestCode) {
1770        final Activity activity = getActivity();
1771        if (activity instanceof ConversationsActivity) {
1772            ((ConversationsActivity) activity).clearPendingViewIntent();
1773        }
1774        super.startActivityForResult(intent, requestCode);
1775    }
1776
1777    @Override
1778    public void onSaveInstanceState(Bundle outState) {
1779        super.onSaveInstanceState(outState);
1780        if (conversation != null) {
1781            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1782            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1783            final Uri uri = pendingTakePhotoUri.peek();
1784            if (uri != null) {
1785                outState.putString(STATE_PHOTO_URI, uri.toString());
1786            }
1787            final ScrollState scrollState = getScrollPosition();
1788            if (scrollState != null) {
1789                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1790            }
1791            final ArrayList<Attachment> attachments = mediaPreviewAdapter.getAttachments();
1792            if (attachments.size() > 0) {
1793                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1794            }
1795        }
1796    }
1797
1798    @Override
1799    public void onActivityCreated(Bundle savedInstanceState) {
1800        super.onActivityCreated(savedInstanceState);
1801        if (savedInstanceState == null) {
1802            return;
1803        }
1804        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1805        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1806        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1807        if (uuid != null) {
1808            QuickLoader.set(uuid);
1809            this.pendingConversationsUuid.push(uuid);
1810            if (attachments != null && attachments.size() > 0) {
1811                this.pendingMediaPreviews.push(attachments);
1812            }
1813            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1814            if (takePhotoUri != null) {
1815                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1816            }
1817            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1818        }
1819    }
1820
1821    @Override
1822    public void onStart() {
1823        super.onStart();
1824        if (this.reInitRequiredOnStart && this.conversation != null) {
1825            final Bundle extras = pendingExtras.pop();
1826            reInit(this.conversation, extras != null);
1827            if (extras != null) {
1828                processExtras(extras);
1829            }
1830        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
1831            final String uuid = pendingConversationsUuid.pop();
1832            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
1833            if (uuid != null) {
1834                findAndReInitByUuidOrArchive(uuid);
1835            }
1836        }
1837    }
1838
1839    @Override
1840    public void onStop() {
1841        super.onStop();
1842        final Activity activity = getActivity();
1843        messageListAdapter.unregisterListenerInAudioPlayer();
1844        if (activity == null || !activity.isChangingConfigurations()) {
1845            hideSoftKeyboard(activity);
1846            messageListAdapter.stopAudioPlayer();
1847        }
1848        if (this.conversation != null) {
1849            final String msg = this.binding.textinput.getText().toString();
1850            storeNextMessage(msg);
1851            updateChatState(this.conversation, msg);
1852            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
1853        }
1854        this.reInitRequiredOnStart = true;
1855    }
1856
1857    private void updateChatState(final Conversation conversation, final String msg) {
1858        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
1859        Account.State status = conversation.getAccount().getStatus();
1860        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
1861            activity.xmppConnectionService.sendChatState(conversation);
1862        }
1863    }
1864
1865    private void saveMessageDraftStopAudioPlayer() {
1866        final Conversation previousConversation = this.conversation;
1867        if (this.activity == null || this.binding == null || previousConversation == null) {
1868            return;
1869        }
1870        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
1871        final String msg = this.binding.textinput.getText().toString();
1872        storeNextMessage(msg);
1873        updateChatState(this.conversation, msg);
1874        messageListAdapter.stopAudioPlayer();
1875        mediaPreviewAdapter.clearPreviews();
1876        toggleInputMethod();
1877    }
1878
1879    public void reInit(Conversation conversation, Bundle extras) {
1880        QuickLoader.set(conversation.getUuid());
1881        this.saveMessageDraftStopAudioPlayer();
1882        this.clearPending();
1883        if (this.reInit(conversation, extras != null)) {
1884            if (extras != null) {
1885                processExtras(extras);
1886            }
1887            this.reInitRequiredOnStart = false;
1888        } else {
1889            this.reInitRequiredOnStart = true;
1890            pendingExtras.push(extras);
1891        }
1892        resetUnreadMessagesCount();
1893    }
1894
1895    private void reInit(Conversation conversation) {
1896        reInit(conversation, false);
1897    }
1898
1899    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
1900        if (conversation == null) {
1901            return false;
1902        }
1903        this.conversation = conversation;
1904        //once we set the conversation all is good and it will automatically do the right thing in onStart()
1905        if (this.activity == null || this.binding == null) {
1906            return false;
1907        }
1908
1909        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
1910            activity.onConversationArchived(this.conversation);
1911            return false;
1912        }
1913
1914        stopScrolling();
1915        Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
1916
1917        if (this.conversation.isRead() && hasExtras) {
1918            Log.d(Config.LOGTAG, "trimming conversation");
1919            this.conversation.trim();
1920        }
1921
1922        setupIme();
1923
1924        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
1925
1926        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
1927        this.binding.textinput.setKeyboardListener(null);
1928        this.binding.textinput.setText("");
1929        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
1930        if (participating) {
1931            this.binding.textinput.append(this.conversation.getNextMessage());
1932        }
1933        this.binding.textinput.setKeyboardListener(this);
1934        messageListAdapter.updatePreferences();
1935        refresh(false);
1936        this.conversation.messagesLoaded.set(true);
1937        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
1938
1939        if (hasExtras || scrolledToBottomAndNoPending) {
1940            resetUnreadMessagesCount();
1941            synchronized (this.messageList) {
1942                Log.d(Config.LOGTAG, "jump to first unread message");
1943                final Message first = conversation.getFirstUnreadMessage();
1944                final int bottom = Math.max(0, this.messageList.size() - 1);
1945                final int pos;
1946                final boolean jumpToBottom;
1947                if (first == null) {
1948                    pos = bottom;
1949                    jumpToBottom = true;
1950                } else {
1951                    int i = getIndexOf(first.getUuid(), this.messageList);
1952                    pos = i < 0 ? bottom : i;
1953                    jumpToBottom = false;
1954                }
1955                setSelection(pos, jumpToBottom);
1956            }
1957        }
1958
1959
1960        this.binding.messagesView.post(this::fireReadEvent);
1961        //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
1962        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
1963        return true;
1964    }
1965
1966    private void resetUnreadMessagesCount() {
1967        lastMessageUuid = null;
1968        hideUnreadMessagesCount();
1969    }
1970
1971    private void hideUnreadMessagesCount() {
1972        if (this.binding == null) {
1973            return;
1974        }
1975        this.binding.scrollToBottomButton.setEnabled(false);
1976        this.binding.scrollToBottomButton.hide();
1977        this.binding.unreadCountCustomView.setVisibility(View.GONE);
1978    }
1979
1980    private void setSelection(int pos, boolean jumpToBottom) {
1981        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
1982        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
1983        this.binding.messagesView.post(this::fireReadEvent);
1984    }
1985
1986
1987    private boolean scrolledToBottom() {
1988        return this.binding != null && scrolledToBottom(this.binding.messagesView);
1989    }
1990
1991    private void processExtras(Bundle extras) {
1992        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
1993        final String text = extras.getString(Intent.EXTRA_TEXT);
1994        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
1995        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
1996        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
1997        final List<Uri> uris = extractUris(extras);
1998        if (uris != null && uris.size() > 0) {
1999            final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2000            mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2001            toggleInputMethod();
2002            return;
2003        }
2004        if (nick != null) {
2005            if (pm) {
2006                Jid jid = conversation.getJid();
2007                try {
2008                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2009                    privateMessageWith(next);
2010                } catch (final IllegalArgumentException ignored) {
2011                    //do nothing
2012                }
2013            } else {
2014                final MucOptions mucOptions = conversation.getMucOptions();
2015                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2016                    highlightInConference(nick);
2017                }
2018            }
2019        } else {
2020            if (text != null && asQuote) {
2021                quoteText(text);
2022            } else {
2023                appendText(text);
2024            }
2025        }
2026        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2027        if (message != null) {
2028            startDownloadable(message);
2029        }
2030    }
2031
2032    private List<Uri> extractUris(Bundle extras) {
2033        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2034        if (uris != null) {
2035            return uris;
2036        }
2037        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2038        if (uri != null) {
2039            return Collections.singletonList(uri);
2040        } else {
2041            return null;
2042        }
2043    }
2044
2045    private List<Uri> cleanUris(List<Uri> uris) {
2046        Iterator<Uri> iterator = uris.iterator();
2047        while(iterator.hasNext()) {
2048            final Uri uri = iterator.next();
2049            if (FileBackend.weOwnFile(getActivity(), uri)) {
2050                iterator.remove();
2051                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2052            }
2053        }
2054        return uris;
2055    }
2056
2057    private boolean showBlockSubmenu(View view) {
2058        final Jid jid = conversation.getJid();
2059        if (jid.getLocal() == null) {
2060            BlockContactDialog.show(activity, conversation);
2061        } else {
2062            PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2063            popupMenu.inflate(R.menu.block);
2064            popupMenu.setOnMenuItemClickListener(menuItem -> {
2065                Blockable blockable;
2066                switch (menuItem.getItemId()) {
2067                    case R.id.block_domain:
2068                        blockable = conversation.getAccount().getRoster().getContact(Jid.ofDomain(jid.getDomain()));
2069                        break;
2070                    default:
2071                        blockable = conversation;
2072                }
2073                BlockContactDialog.show(activity, blockable);
2074                return true;
2075            });
2076            popupMenu.show();
2077        }
2078        return true;
2079    }
2080
2081    private void updateSnackBar(final Conversation conversation) {
2082        final Account account = conversation.getAccount();
2083        final XmppConnection connection = account.getXmppConnection();
2084        final int mode = conversation.getMode();
2085        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2086        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2087            return;
2088        }
2089        if (account.getStatus() == Account.State.DISABLED) {
2090            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2091        } else if (conversation.isBlocked()) {
2092            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2093        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2094            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2095        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2096            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2097        } else if (mode == Conversation.MODE_MULTI
2098                && !conversation.getMucOptions().online()
2099                && account.getStatus() == Account.State.ONLINE) {
2100            switch (conversation.getMucOptions().getError()) {
2101                case NICK_IN_USE:
2102                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2103                    break;
2104                case NO_RESPONSE:
2105                    showSnackbar(R.string.joining_conference, 0, null);
2106                    break;
2107                case SERVER_NOT_FOUND:
2108                    if (conversation.receivedMessagesCount() > 0) {
2109                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2110                    } else {
2111                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2112                    }
2113                    break;
2114                case REMOTE_SERVER_TIMEOUT:
2115                    if (conversation.receivedMessagesCount() > 0) {
2116                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2117                    } else {
2118                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2119                    }
2120                    break;
2121                case PASSWORD_REQUIRED:
2122                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2123                    break;
2124                case BANNED:
2125                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2126                    break;
2127                case MEMBERS_ONLY:
2128                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2129                    break;
2130                case RESOURCE_CONSTRAINT:
2131                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2132                    break;
2133                case KICKED:
2134                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2135                    break;
2136                case UNKNOWN:
2137                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2138                    break;
2139                case INVALID_NICK:
2140                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2141                case SHUTDOWN:
2142                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2143                    break;
2144                case DESTROYED:
2145                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2146                    break;
2147                default:
2148                    hideSnackbar();
2149                    break;
2150            }
2151        } else if (account.hasPendingPgpIntent(conversation)) {
2152            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2153        } else if (connection != null
2154                && connection.getFeatures().blocking()
2155                && conversation.countMessages() != 0
2156                && !conversation.isBlocked()
2157                && conversation.isWithStranger()) {
2158            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2159        } else {
2160            hideSnackbar();
2161        }
2162    }
2163
2164    @Override
2165    public void refresh() {
2166        if (this.binding == null) {
2167            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2168            return;
2169        }
2170        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2171            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2172                activity.onConversationArchived(this.conversation);
2173                return;
2174            }
2175        }
2176        this.refresh(true);
2177    }
2178
2179    private void refresh(boolean notifyConversationRead) {
2180        synchronized (this.messageList) {
2181            if (this.conversation != null) {
2182                conversation.populateWithMessages(this.messageList);
2183                updateSnackBar(conversation);
2184                updateStatusMessages();
2185                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2186                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2187                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2188                }
2189                this.messageListAdapter.notifyDataSetChanged();
2190                updateChatMsgHint();
2191                if (notifyConversationRead && activity != null) {
2192                    binding.messagesView.post(this::fireReadEvent);
2193                }
2194                updateSendButton();
2195                updateEditablity();
2196                activity.invalidateOptionsMenu();
2197            }
2198        }
2199    }
2200
2201    protected void messageSent() {
2202        mSendingPgpMessage.set(false);
2203        this.binding.textinput.setText("");
2204        if (conversation.setCorrectingMessage(null)) {
2205            this.binding.textinput.append(conversation.getDraftMessage());
2206            conversation.setDraftMessage(null);
2207        }
2208        storeNextMessage();
2209        updateChatMsgHint();
2210        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2211        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2212        if (prefScrollToBottom || scrolledToBottom()) {
2213            new Handler().post(() -> {
2214                int size = messageList.size();
2215                this.binding.messagesView.setSelection(size - 1);
2216            });
2217        }
2218    }
2219
2220    private boolean storeNextMessage() {
2221        return storeNextMessage(this.binding.textinput.getText().toString());
2222    }
2223
2224    private boolean storeNextMessage(String msg) {
2225        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2226        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2227            this.activity.xmppConnectionService.updateConversation(this.conversation);
2228            return true;
2229        }
2230        return false;
2231    }
2232
2233    public void doneSendingPgpMessage() {
2234        mSendingPgpMessage.set(false);
2235    }
2236
2237    public long getMaxHttpUploadSize(Conversation conversation) {
2238        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2239        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2240    }
2241
2242    private void updateEditablity() {
2243        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2244        this.binding.textinput.setFocusable(canWrite);
2245        this.binding.textinput.setFocusableInTouchMode(canWrite);
2246        this.binding.textSendButton.setEnabled(canWrite);
2247        this.binding.textinput.setCursorVisible(canWrite);
2248        this.binding.textinput.setEnabled(canWrite);
2249    }
2250
2251    public void updateSendButton() {
2252        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2253        boolean useSendButtonToIndicateStatus = PreferenceManager.getDefaultSharedPreferences(getActivity()).getBoolean("send_button_status", getResources().getBoolean(R.bool.send_button_status));
2254        final Conversation c = this.conversation;
2255        final Presence.Status status;
2256        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2257        final SendButtonAction action;
2258        if (hasAttachments) {
2259            action = SendButtonAction.TEXT;
2260        } else {
2261            action = SendButtonTool.getAction(getActivity(), c, text);
2262        }
2263        if (useSendButtonToIndicateStatus && c.getAccount().getStatus() == Account.State.ONLINE) {
2264            if (activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2265                status = Presence.Status.OFFLINE;
2266            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2267                status = c.getContact().getShownStatus();
2268            } else {
2269                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2270            }
2271        } else {
2272            status = Presence.Status.OFFLINE;
2273        }
2274        this.binding.textSendButton.setTag(action);
2275        this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(getActivity(), action, status));
2276    }
2277
2278    protected void updateDateSeparators() {
2279        synchronized (this.messageList) {
2280            DateSeparator.addAll(this.messageList);
2281        }
2282    }
2283
2284    protected void updateStatusMessages() {
2285        updateDateSeparators();
2286        synchronized (this.messageList) {
2287            if (showLoadMoreMessages(conversation)) {
2288                this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2289            }
2290            if (conversation.getMode() == Conversation.MODE_SINGLE) {
2291                ChatState state = conversation.getIncomingChatState();
2292                if (state == ChatState.COMPOSING) {
2293                    this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2294                } else if (state == ChatState.PAUSED) {
2295                    this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2296                } else {
2297                    for (int i = this.messageList.size() - 1; i >= 0; --i) {
2298                        if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) {
2299                            return;
2300                        } else {
2301                            if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) {
2302                                this.messageList.add(i + 1,
2303                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2304                                return;
2305                            }
2306                        }
2307                    }
2308                }
2309            } else {
2310                final MucOptions mucOptions = conversation.getMucOptions();
2311                final List<MucOptions.User> allUsers = mucOptions.getUsers();
2312                final Set<ReadByMarker> addedMarkers = new HashSet<>();
2313                ChatState state = ChatState.COMPOSING;
2314                List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2315                if (users.size() == 0) {
2316                    state = ChatState.PAUSED;
2317                    users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2318                }
2319                if (mucOptions.isPrivateAndNonAnonymous()) {
2320                    for (int i = this.messageList.size() - 1; i >= 0; --i) {
2321                        final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2322                        final List<MucOptions.User> shownMarkers = new ArrayList<>();
2323                        for (ReadByMarker marker : markersForMessage) {
2324                            if (!ReadByMarker.contains(marker, addedMarkers)) {
2325                                addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2326                                MucOptions.User user = mucOptions.findUser(marker);
2327                                if (user != null && !users.contains(user)) {
2328                                    shownMarkers.add(user);
2329                                }
2330                            }
2331                        }
2332                        final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2333                        final Message statusMessage;
2334                        final int size = shownMarkers.size();
2335                        if (size > 1) {
2336                            final String body;
2337                            if (size <= 4) {
2338                                body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2339                            } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2340                                body = getString(R.string.everyone_has_read_up_to_this_point);
2341                            } else {
2342                                body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2343                            }
2344                            statusMessage = Message.createStatusMessage(conversation, body);
2345                            statusMessage.setCounterparts(shownMarkers);
2346                        } else if (size == 1) {
2347                            statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2348                            statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2349                            statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2350                        } else {
2351                            statusMessage = null;
2352                        }
2353                        if (statusMessage != null) {
2354                            this.messageList.add(i + 1, statusMessage);
2355                        }
2356                        addedMarkers.add(markerForSender);
2357                        if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2358                            break;
2359                        }
2360                    }
2361                }
2362                if (users.size() > 0) {
2363                    Message statusMessage;
2364                    if (users.size() == 1) {
2365                        MucOptions.User user = users.get(0);
2366                        int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2367                        statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2368                        statusMessage.setTrueCounterpart(user.getRealJid());
2369                        statusMessage.setCounterpart(user.getFullJid());
2370                    } else {
2371                        int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2372                        statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2373                        statusMessage.setCounterparts(users);
2374                    }
2375                    this.messageList.add(statusMessage);
2376                }
2377
2378            }
2379        }
2380    }
2381
2382    private void stopScrolling() {
2383        long now = SystemClock.uptimeMillis();
2384        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2385        binding.messagesView.dispatchTouchEvent(cancel);
2386    }
2387
2388    private boolean showLoadMoreMessages(final Conversation c) {
2389        if (activity == null || activity.xmppConnectionService == null) {
2390            return false;
2391        }
2392        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2393        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2394        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2395    }
2396
2397    private boolean hasMamSupport(final Conversation c) {
2398        if (c.getMode() == Conversation.MODE_SINGLE) {
2399            final XmppConnection connection = c.getAccount().getXmppConnection();
2400            return connection != null && connection.getFeatures().mam();
2401        } else {
2402            return c.getMucOptions().mamSupport();
2403        }
2404    }
2405
2406    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2407        showSnackbar(message, action, clickListener, null);
2408    }
2409
2410    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2411        this.binding.snackbar.setVisibility(View.VISIBLE);
2412        this.binding.snackbar.setOnClickListener(null);
2413        this.binding.snackbarMessage.setText(message);
2414        this.binding.snackbarMessage.setOnClickListener(null);
2415        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2416        if (action != 0) {
2417            this.binding.snackbarAction.setText(action);
2418        }
2419        this.binding.snackbarAction.setOnClickListener(clickListener);
2420        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2421    }
2422
2423    protected void hideSnackbar() {
2424        this.binding.snackbar.setVisibility(View.GONE);
2425    }
2426
2427    protected void sendMessage(Message message) {
2428        activity.xmppConnectionService.sendMessage(message);
2429        messageSent();
2430    }
2431
2432    protected void sendPgpMessage(final Message message) {
2433        final XmppConnectionService xmppService = activity.xmppConnectionService;
2434        final Contact contact = message.getConversation().getContact();
2435        if (!activity.hasPgp()) {
2436            activity.showInstallPgpDialog();
2437            return;
2438        }
2439        if (conversation.getAccount().getPgpSignature() == null) {
2440            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2441            return;
2442        }
2443        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2444            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2445        }
2446        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2447            if (contact.getPgpKeyId() != 0) {
2448                xmppService.getPgpEngine().hasKey(contact,
2449                        new UiCallback<Contact>() {
2450
2451                            @Override
2452                            public void userInputRequried(PendingIntent pi, Contact contact) {
2453                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2454                            }
2455
2456                            @Override
2457                            public void success(Contact contact) {
2458                                encryptTextMessage(message);
2459                            }
2460
2461                            @Override
2462                            public void error(int error, Contact contact) {
2463                                activity.runOnUiThread(() -> Toast.makeText(activity,
2464                                        R.string.unable_to_connect_to_keychain,
2465                                        Toast.LENGTH_SHORT
2466                                ).show());
2467                                mSendingPgpMessage.set(false);
2468                            }
2469                        });
2470
2471            } else {
2472                showNoPGPKeyDialog(false, (dialog, which) -> {
2473                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2474                    xmppService.updateConversation(conversation);
2475                    message.setEncryption(Message.ENCRYPTION_NONE);
2476                    xmppService.sendMessage(message);
2477                    messageSent();
2478                });
2479            }
2480        } else {
2481            if (conversation.getMucOptions().pgpKeysInUse()) {
2482                if (!conversation.getMucOptions().everybodyHasKeys()) {
2483                    Toast warning = Toast
2484                            .makeText(getActivity(),
2485                                    R.string.missing_public_keys,
2486                                    Toast.LENGTH_LONG);
2487                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2488                    warning.show();
2489                }
2490                encryptTextMessage(message);
2491            } else {
2492                showNoPGPKeyDialog(true, (dialog, which) -> {
2493                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2494                    message.setEncryption(Message.ENCRYPTION_NONE);
2495                    xmppService.updateConversation(conversation);
2496                    xmppService.sendMessage(message);
2497                    messageSent();
2498                });
2499            }
2500        }
2501    }
2502
2503    public void encryptTextMessage(Message message) {
2504        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2505                new UiCallback<Message>() {
2506
2507                    @Override
2508                    public void userInputRequried(PendingIntent pi, Message message) {
2509                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2510                    }
2511
2512                    @Override
2513                    public void success(Message message) {
2514                        //TODO the following two call can be made before the callback
2515                        getActivity().runOnUiThread(() -> messageSent());
2516                    }
2517
2518                    @Override
2519                    public void error(final int error, Message message) {
2520                        getActivity().runOnUiThread(() -> {
2521                            doneSendingPgpMessage();
2522                            Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
2523                        });
2524
2525                    }
2526                });
2527    }
2528
2529    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2530        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2531        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2532        if (plural) {
2533            builder.setTitle(getString(R.string.no_pgp_keys));
2534            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2535        } else {
2536            builder.setTitle(getString(R.string.no_pgp_key));
2537            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2538        }
2539        builder.setNegativeButton(getString(R.string.cancel), null);
2540        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2541        builder.create().show();
2542    }
2543
2544    public void appendText(String text) {
2545        if (text == null) {
2546            return;
2547        }
2548        String previous = this.binding.textinput.getText().toString();
2549        if (UIHelper.isLastLineQuote(previous)) {
2550            text = '\n' + text;
2551        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2552            text = " " + text;
2553        }
2554        this.binding.textinput.append(text);
2555    }
2556
2557    @Override
2558    public boolean onEnterPressed() {
2559        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2560        final boolean enterIsSend = p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2561        if (enterIsSend) {
2562            sendMessage();
2563            return true;
2564        } else {
2565            return false;
2566        }
2567    }
2568
2569    @Override
2570    public void onTypingStarted() {
2571        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2572        if (service == null) {
2573            return;
2574        }
2575        Account.State status = conversation.getAccount().getStatus();
2576        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2577            service.sendChatState(conversation);
2578        }
2579        updateSendButton();
2580    }
2581
2582    @Override
2583    public void onTypingStopped() {
2584        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2585        if (service == null) {
2586            return;
2587        }
2588        Account.State status = conversation.getAccount().getStatus();
2589        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2590            service.sendChatState(conversation);
2591        }
2592    }
2593
2594    @Override
2595    public void onTextDeleted() {
2596        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2597        if (service == null) {
2598            return;
2599        }
2600        Account.State status = conversation.getAccount().getStatus();
2601        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
2602            service.sendChatState(conversation);
2603        }
2604        if (storeNextMessage()) {
2605            activity.onConversationsListItemUpdated();
2606        }
2607        updateSendButton();
2608    }
2609
2610    @Override
2611    public void onTextChanged() {
2612        if (conversation != null && conversation.getCorrectingMessage() != null) {
2613            updateSendButton();
2614        }
2615    }
2616
2617    @Override
2618    public boolean onTabPressed(boolean repeated) {
2619        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2620            return false;
2621        }
2622        if (repeated) {
2623            completionIndex++;
2624        } else {
2625            lastCompletionLength = 0;
2626            completionIndex = 0;
2627            final String content = this.binding.textinput.getText().toString();
2628            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2629            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2630            firstWord = start == 0;
2631            incomplete = content.substring(start, lastCompletionCursor);
2632        }
2633        List<String> completions = new ArrayList<>();
2634        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2635            String name = user.getName();
2636            if (name != null && name.startsWith(incomplete)) {
2637                completions.add(name + (firstWord ? ": " : " "));
2638            }
2639        }
2640        Collections.sort(completions);
2641        if (completions.size() > completionIndex) {
2642            String completion = completions.get(completionIndex).substring(incomplete.length());
2643            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2644            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2645            lastCompletionLength = completion.length();
2646        } else {
2647            completionIndex = -1;
2648            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2649            lastCompletionLength = 0;
2650        }
2651        return true;
2652    }
2653
2654    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2655        try {
2656            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2657        } catch (final SendIntentException ignored) {
2658        }
2659    }
2660
2661    @Override
2662    public void onBackendConnected() {
2663        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2664        String uuid = pendingConversationsUuid.pop();
2665        if (uuid != null) {
2666            if (!findAndReInitByUuidOrArchive(uuid)) {
2667                return;
2668            }
2669        } else {
2670            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2671                clearPending();
2672                activity.onConversationArchived(conversation);
2673                return;
2674            }
2675        }
2676        ActivityResult activityResult = postponedActivityResult.pop();
2677        if (activityResult != null) {
2678            handleActivityResult(activityResult);
2679        }
2680        clearPending();
2681    }
2682
2683    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2684        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2685        if (conversation == null) {
2686            clearPending();
2687            activity.onConversationArchived(null);
2688            return false;
2689        }
2690        reInit(conversation);
2691        ScrollState scrollState = pendingScrollState.pop();
2692        String lastMessageUuid = pendingLastMessageUuid.pop();
2693        List<Attachment> attachments = pendingMediaPreviews.pop();
2694        if (scrollState != null) {
2695            setScrollPosition(scrollState, lastMessageUuid);
2696        }
2697        if (attachments != null && attachments.size() > 0) {
2698            Log.d(Config.LOGTAG, "had attachments on restore");
2699            mediaPreviewAdapter.addMediaPreviews(attachments);
2700            toggleInputMethod();
2701        }
2702        return true;
2703    }
2704
2705    private void clearPending() {
2706        if (postponedActivityResult.clear()) {
2707            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2708        }
2709        if (pendingScrollState.clear()) {
2710            Log.e(Config.LOGTAG, "cleared scroll state");
2711        }
2712        if (pendingTakePhotoUri.clear()) {
2713            Log.e(Config.LOGTAG, "cleared pending photo uri");
2714        }
2715    }
2716
2717    public Conversation getConversation() {
2718        return conversation;
2719    }
2720}