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.setVisibility(View.VISIBLE);
 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 String body = this.binding.textinput.getText().toString();
 725        final Conversation conversation = this.conversation;
 726        if (body.length() == 0 || conversation == null) {
 727            return;
 728        }
 729        final Message message;
 730        if (conversation.getCorrectingMessage() == null) {
 731            message = new Message(conversation, body, conversation.getNextEncryption());
 732            if (conversation.getMode() == Conversation.MODE_MULTI) {
 733                final Jid nextCounterpart = conversation.getNextCounterpart();
 734                if (nextCounterpart != null) {
 735                    message.setCounterpart(nextCounterpart);
 736                    message.setTrueCounterpart(conversation.getMucOptions().getTrueCounterpart(nextCounterpart));
 737                    message.setType(Message.TYPE_PRIVATE);
 738                }
 739            }
 740        } else {
 741            message = conversation.getCorrectingMessage();
 742            message.setBody(body);
 743            message.setEdited(message.getUuid());
 744            message.setUuid(UUID.randomUUID().toString());
 745        }
 746        switch (conversation.getNextEncryption()) {
 747            case Message.ENCRYPTION_PGP:
 748                sendPgpMessage(message);
 749                break;
 750            case Message.ENCRYPTION_AXOLOTL:
 751                if (!trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 752                    sendMessage(message);
 753                }
 754                break;
 755            default:
 756                sendMessage(message);
 757        }
 758    }
 759
 760    protected boolean trustKeysIfNeeded(int requestCode) {
 761        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 762        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 763        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 764        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 765        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 766        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 767        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 768        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 769        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 770            axolotlService.createSessionsIfNeeded(conversation);
 771            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 772            String[] contacts = new String[targets.size()];
 773            for (int i = 0; i < contacts.length; ++i) {
 774                contacts[i] = targets.get(i).toString();
 775            }
 776            intent.putExtra("contacts", contacts);
 777            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toString());
 778            intent.putExtra("conversation", conversation.getUuid());
 779            startActivityForResult(intent, requestCode);
 780            return true;
 781        } else {
 782            return false;
 783        }
 784    }
 785
 786    public void updateChatMsgHint() {
 787        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 788        if (conversation.getCorrectingMessage() != null) {
 789            this.binding.textinput.setHint(R.string.send_corrected_message);
 790        } else if (multi && conversation.getNextCounterpart() != null) {
 791            this.binding.textinput.setHint(getString(
 792                    R.string.send_private_message_to,
 793                    conversation.getNextCounterpart().getResource()));
 794        } else if (multi && !conversation.getMucOptions().participating()) {
 795            this.binding.textinput.setHint(R.string.you_are_not_participating);
 796        } else {
 797            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 798            getActivity().invalidateOptionsMenu();
 799        }
 800    }
 801
 802    public void setupIme() {
 803        this.binding.textinput.refreshIme();
 804    }
 805
 806    private void handleActivityResult(ActivityResult activityResult) {
 807        if (activityResult.resultCode == Activity.RESULT_OK) {
 808            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 809        } else {
 810            handleNegativeActivityResult(activityResult.requestCode);
 811        }
 812    }
 813
 814    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 815        switch (requestCode) {
 816            case REQUEST_TRUST_KEYS_TEXT:
 817                final String body = this.binding.textinput.getText().toString();
 818                Message message = new Message(conversation, body, conversation.getNextEncryption());
 819                sendMessage(message);
 820                break;
 821            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 822                commitAttachments();
 823                break;
 824            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 825                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 826                mediaPreviewAdapter.addMediaPreviews(imageUris);
 827                toggleInputMethod();
 828                break;
 829            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 830                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 831                if (takePhotoUri != null) {
 832                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 833                    toggleInputMethod();
 834                } else {
 835                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 836                }
 837                break;
 838            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 839            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 840            case ATTACHMENT_CHOICE_RECORD_VOICE:
 841                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 842                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 843                mediaPreviewAdapter.addMediaPreviews(fileUris);
 844                toggleInputMethod();
 845                break;
 846            case ATTACHMENT_CHOICE_LOCATION:
 847                double latitude = data.getDoubleExtra("latitude", 0);
 848                double longitude = data.getDoubleExtra("longitude", 0);
 849                Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 850                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 851                toggleInputMethod();
 852                break;
 853            case REQUEST_INVITE_TO_CONVERSATION:
 854                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 855                if (invite != null) {
 856                    if (invite.execute(activity)) {
 857                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 858                        activity.mToast.show();
 859                    }
 860                }
 861                break;
 862        }
 863    }
 864
 865    private void commitAttachments() {
 866        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 867            return;
 868        }
 869        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 870        final PresenceSelector.OnPresenceSelected callback = () -> {
 871            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 872                final Attachment attachment = i.next();
 873                if (attachment.getType() == Attachment.Type.LOCATION) {
 874                    attachLocationToConversation(conversation, attachment.getUri());
 875                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 876                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 877                    attachImageToConversation(conversation, attachment.getUri());
 878                } else {
 879                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 880                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 881                }
 882            }
 883            mediaPreviewAdapter.notifyDataSetChanged();
 884            toggleInputMethod();
 885        };
 886        if (conversation == null || conversation.getMode() == Conversation.MODE_MULTI || FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation))) {
 887            callback.onPresenceSelected();
 888        } else {
 889            activity.selectPresence(conversation, callback);
 890        }
 891    }
 892
 893    public void toggleInputMethod() {
 894        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 895        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 896        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 897        updateSendButton();
 898    }
 899
 900    private void handleNegativeActivityResult(int requestCode) {
 901        switch (requestCode) {
 902            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 903                if (pendingTakePhotoUri.clear()) {
 904                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 905                }
 906                break;
 907        }
 908    }
 909
 910    @Override
 911    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 912        super.onActivityResult(requestCode, resultCode, data);
 913        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 914        if (activity != null && activity.xmppConnectionService != null) {
 915            handleActivityResult(activityResult);
 916        } else {
 917            this.postponedActivityResult.push(activityResult);
 918        }
 919    }
 920
 921    public void unblockConversation(final Blockable conversation) {
 922        activity.xmppConnectionService.sendUnblockRequest(conversation);
 923    }
 924
 925    @Override
 926    public void onAttach(Activity activity) {
 927        super.onAttach(activity);
 928        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 929        if (activity instanceof ConversationsActivity) {
 930            this.activity = (ConversationsActivity) activity;
 931        } else {
 932            throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 933        }
 934    }
 935
 936    @Override
 937    public void onDetach() {
 938        super.onDetach();
 939        this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 940    }
 941
 942    @Override
 943    public void onCreate(Bundle savedInstanceState) {
 944        super.onCreate(savedInstanceState);
 945        setHasOptionsMenu(true);
 946    }
 947
 948    @Override
 949    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 950        menuInflater.inflate(R.menu.fragment_conversation, menu);
 951        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 952        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 953        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 954        final MenuItem menuMute = menu.findItem(R.id.action_mute);
 955        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 956
 957
 958        if (conversation != null) {
 959            if (conversation.getMode() == Conversation.MODE_MULTI) {
 960                menuContactDetails.setVisible(false);
 961                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 962            } else {
 963                menuContactDetails.setVisible(!this.conversation.withSelf());
 964                menuMucDetails.setVisible(false);
 965                final XmppConnectionService service = activity.xmppConnectionService;
 966                menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
 967            }
 968            if (conversation.isMuted()) {
 969                menuMute.setVisible(false);
 970            } else {
 971                menuUnmute.setVisible(false);
 972            }
 973            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
 974            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
 975        }
 976        super.onCreateOptionsMenu(menu, menuInflater);
 977    }
 978
 979    @Override
 980    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 981        this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
 982        binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
 983
 984        binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
 985
 986        binding.textinput.setOnEditorActionListener(mEditorActionListener);
 987        binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
 988
 989        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
 990
 991        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
 992        binding.messagesView.setOnScrollListener(mOnScrollListener);
 993        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
 994        mediaPreviewAdapter = new MediaPreviewAdapter(this);
 995        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
 996        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
 997        messageListAdapter.setOnContactPictureClicked(message -> {
 998            String fingerprint;
 999            if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
1000                fingerprint = "pgp";
1001            } else {
1002                fingerprint = message.getFingerprint();
1003            }
1004            final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
1005            if (received) {
1006                if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
1007                    Jid tcp = message.getTrueCounterpart();
1008                    Jid user = message.getCounterpart();
1009                    if (user != null && !user.isBareJid()) {
1010                        final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
1011                        if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
1012                            if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
1013                                Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
1014                            }
1015                            highlightInConference(user.getResource());
1016                        } else {
1017                            Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
1018                        }
1019                    }
1020                    return;
1021                } else {
1022                    if (!message.getContact().isSelf()) {
1023                        activity.switchToContactDetails(message.getContact(), fingerprint);
1024                        return;
1025                    }
1026                }
1027            }
1028            activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
1029        });
1030        messageListAdapter.setOnContactPictureLongClicked((v, message) -> {
1031            if (message.getStatus() <= Message.STATUS_RECEIVED) {
1032                if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
1033                    Jid tcp = message.getTrueCounterpart();
1034                    Jid cp = message.getCounterpart();
1035                    if (cp != null && !cp.isBareJid()) {
1036                        User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
1037                        final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
1038                        final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
1039                        popupMenu.inflate(R.menu.muc_details_context);
1040                        final Menu menu = popupMenu.getMenu();
1041                        MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
1042                        popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, conversation, activity));
1043                        popupMenu.show();
1044                    }
1045                }
1046            } else {
1047                activity.showQrCode(conversation.getAccount().getShareableUri());
1048            }
1049        });
1050        messageListAdapter.setOnQuoteListener(this::quoteText);
1051        binding.messagesView.setAdapter(messageListAdapter);
1052
1053        registerForContextMenu(binding.messagesView);
1054
1055        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1056            this.binding.textinput.setCustomInsertionActionModeCallback(new EditMessageActionModeCallback(this.binding.textinput));
1057        }
1058
1059        return binding.getRoot();
1060    }
1061
1062    private void quoteText(String text) {
1063        if (binding.textinput.isEnabled()) {
1064            binding.textinput.insertAsQuote(text);
1065            binding.textinput.requestFocus();
1066            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1067            if (inputMethodManager != null) {
1068                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1069            }
1070        }
1071    }
1072
1073    private void quoteMessage(Message message) {
1074        quoteText(MessageUtils.prepareQuote(message));
1075    }
1076
1077    @Override
1078    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1079        synchronized (this.messageList) {
1080            super.onCreateContextMenu(menu, v, menuInfo);
1081            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1082            this.selectedMessage = this.messageList.get(acmi.position);
1083            populateContextMenu(menu);
1084        }
1085    }
1086
1087    private void populateContextMenu(ContextMenu menu) {
1088        final Message m = this.selectedMessage;
1089        final Transferable t = m.getTransferable();
1090        Message relevantForCorrection = m;
1091        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1092            relevantForCorrection = relevantForCorrection.next();
1093        }
1094        if (m.getType() != Message.TYPE_STATUS) {
1095
1096            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE) {
1097                return;
1098            }
1099
1100            final boolean deleted = t != null && t instanceof TransferablePlaceholder;
1101            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1102                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1103            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleConnection || t instanceof HttpDownloadConnection);
1104            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1105            menu.setHeaderTitle(R.string.message_options);
1106            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1107            MenuItem copyLink = menu.findItem(R.id.copy_link);
1108            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1109            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1110            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1111            MenuItem shareWith = menu.findItem(R.id.share_with);
1112            MenuItem sendAgain = menu.findItem(R.id.send_again);
1113            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1114            MenuItem downloadFile = menu.findItem(R.id.download_file);
1115            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1116            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1117            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1118            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1119                copyMessage.setVisible(true);
1120                quoteMessage.setVisible(MessageUtils.prepareQuote(m).length() > 0);
1121                String body = m.getMergedBody().toString();
1122                if (ShareUtil.containsXmppUri(body)) {
1123                    copyLink.setTitle(R.string.copy_jabber_id);
1124                    copyLink.setVisible(true);
1125                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1126                    copyLink.setVisible(true);
1127                }
1128            }
1129            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
1130                retryDecryption.setVisible(true);
1131            }
1132            if (relevantForCorrection.getType() == Message.TYPE_TEXT
1133                    && relevantForCorrection.isLastCorrectableMessage()
1134                    && m.getConversation() instanceof Conversation
1135                    && (((Conversation) m.getConversation()).getMucOptions().nonanonymous() || m.getConversation().getMode() == Conversation.MODE_SINGLE)) {
1136                correctMessage.setVisible(true);
1137            }
1138            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1139                shareWith.setVisible(true);
1140            }
1141            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1142                sendAgain.setVisible(true);
1143            }
1144            if (m.hasFileOnRemoteHost()
1145                    || m.isGeoUri()
1146                    || m.treatAsDownloadable()
1147                    || (t != null && t instanceof HttpDownloadConnection)) {
1148                copyUrl.setVisible(true);
1149            }
1150            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1151                downloadFile.setVisible(true);
1152                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1153            }
1154            boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1155                    || m.getStatus() == Message.STATUS_UNSEND
1156                    || m.getStatus() == Message.STATUS_OFFERED;
1157            if ((t != null && !deleted) || waitingOfferedSending && m.needsUploading()) {
1158                cancelTransmission.setVisible(true);
1159            }
1160            if (m.isFileOrImage() && !deleted) {
1161                String path = m.getRelativeFilePath();
1162                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1163                    deleteFile.setVisible(true);
1164                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1165                }
1166            }
1167            if (m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null) {
1168                showErrorMessage.setVisible(true);
1169            }
1170        }
1171    }
1172
1173    @Override
1174    public boolean onContextItemSelected(MenuItem item) {
1175        switch (item.getItemId()) {
1176            case R.id.share_with:
1177                ShareUtil.share(activity, selectedMessage);
1178                return true;
1179            case R.id.correct_message:
1180                correctMessage(selectedMessage);
1181                return true;
1182            case R.id.copy_message:
1183                ShareUtil.copyToClipboard(activity, selectedMessage);
1184                return true;
1185            case R.id.copy_link:
1186                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1187                return true;
1188            case R.id.quote_message:
1189                quoteMessage(selectedMessage);
1190                return true;
1191            case R.id.send_again:
1192                resendMessage(selectedMessage);
1193                return true;
1194            case R.id.copy_url:
1195                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1196                return true;
1197            case R.id.download_file:
1198                startDownloadable(selectedMessage);
1199                return true;
1200            case R.id.cancel_transmission:
1201                cancelTransmission(selectedMessage);
1202                return true;
1203            case R.id.retry_decryption:
1204                retryDecryption(selectedMessage);
1205                return true;
1206            case R.id.delete_file:
1207                deleteFile(selectedMessage);
1208                return true;
1209            case R.id.show_error_message:
1210                showErrorMessage(selectedMessage);
1211                return true;
1212            default:
1213                return super.onContextItemSelected(item);
1214        }
1215    }
1216
1217    @Override
1218    public boolean onOptionsItemSelected(final MenuItem item) {
1219        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1220            return false;
1221        } else if (conversation == null) {
1222            return super.onOptionsItemSelected(item);
1223        }
1224        switch (item.getItemId()) {
1225            case R.id.encryption_choice_axolotl:
1226            case R.id.encryption_choice_pgp:
1227            case R.id.encryption_choice_none:
1228                handleEncryptionSelection(item);
1229                break;
1230            case R.id.attach_choose_picture:
1231            case R.id.attach_take_picture:
1232            case R.id.attach_record_video:
1233            case R.id.attach_choose_file:
1234            case R.id.attach_record_voice:
1235            case R.id.attach_location:
1236                handleAttachmentSelection(item);
1237                break;
1238            case R.id.action_archive:
1239                activity.xmppConnectionService.archiveConversation(conversation);
1240                break;
1241            case R.id.action_contact_details:
1242                activity.switchToContactDetails(conversation.getContact());
1243                break;
1244            case R.id.action_muc_details:
1245                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1246                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1247                intent.putExtra("uuid", conversation.getUuid());
1248                startActivity(intent);
1249                break;
1250            case R.id.action_invite:
1251                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1252                break;
1253            case R.id.action_clear_history:
1254                clearHistoryDialog(conversation);
1255                break;
1256            case R.id.action_mute:
1257                muteConversationDialog(conversation);
1258                break;
1259            case R.id.action_unmute:
1260                unmuteConversation(conversation);
1261                break;
1262            case R.id.action_block:
1263            case R.id.action_unblock:
1264                final Activity activity = getActivity();
1265                if (activity instanceof XmppActivity) {
1266                    BlockContactDialog.show((XmppActivity) activity, conversation);
1267                }
1268                break;
1269            default:
1270                break;
1271        }
1272        return super.onOptionsItemSelected(item);
1273    }
1274
1275    private void handleAttachmentSelection(MenuItem item) {
1276        switch (item.getItemId()) {
1277            case R.id.attach_choose_picture:
1278                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1279                break;
1280            case R.id.attach_take_picture:
1281                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1282                break;
1283            case R.id.attach_record_video:
1284                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1285                break;
1286            case R.id.attach_choose_file:
1287                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1288                break;
1289            case R.id.attach_record_voice:
1290                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1291                break;
1292            case R.id.attach_location:
1293                attachFile(ATTACHMENT_CHOICE_LOCATION);
1294                break;
1295        }
1296    }
1297
1298    private void handleEncryptionSelection(MenuItem item) {
1299        if (conversation == null) {
1300            return;
1301        }
1302        switch (item.getItemId()) {
1303            case R.id.encryption_choice_none:
1304                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1305                item.setChecked(true);
1306                break;
1307            case R.id.encryption_choice_pgp:
1308                if (activity.hasPgp()) {
1309                    if (conversation.getAccount().getPgpSignature() != null) {
1310                        conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1311                        item.setChecked(true);
1312                    } else {
1313                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1314                    }
1315                } else {
1316                    activity.showInstallPgpDialog();
1317                }
1318                break;
1319            case R.id.encryption_choice_axolotl:
1320                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1321                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1322                conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1323                item.setChecked(true);
1324                break;
1325            default:
1326                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1327                break;
1328        }
1329        activity.xmppConnectionService.updateConversation(conversation);
1330        updateChatMsgHint();
1331        getActivity().invalidateOptionsMenu();
1332        activity.refreshUi();
1333    }
1334
1335    public void attachFile(final int attachmentChoice) {
1336        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1337            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1338                return;
1339            }
1340        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1341            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1342                return;
1343            }
1344        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1345            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1346                return;
1347            }
1348        }
1349        try {
1350            activity.getPreferences().edit()
1351                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1352                    .apply();
1353        } catch (IllegalArgumentException e) {
1354            //just do not save
1355        }
1356        final int encryption = conversation.getNextEncryption();
1357        final int mode = conversation.getMode();
1358        if (encryption == Message.ENCRYPTION_PGP) {
1359            if (activity.hasPgp()) {
1360                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1361                    activity.xmppConnectionService.getPgpEngine().hasKey(
1362                            conversation.getContact(),
1363                            new UiCallback<Contact>() {
1364
1365                                @Override
1366                                public void userInputRequried(PendingIntent pi, Contact contact) {
1367                                    startPendingIntent(pi, attachmentChoice);
1368                                }
1369
1370                                @Override
1371                                public void success(Contact contact) {
1372                                    selectPresenceToAttachFile(attachmentChoice);
1373                                }
1374
1375                                @Override
1376                                public void error(int error, Contact contact) {
1377                                    activity.replaceToast(getString(error));
1378                                }
1379                            });
1380                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1381                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1382                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1383                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1384                        warning.show();
1385                    }
1386                    selectPresenceToAttachFile(attachmentChoice);
1387                } else {
1388                    showNoPGPKeyDialog(false, (dialog, which) -> {
1389                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1390                        activity.xmppConnectionService.updateConversation(conversation);
1391                        selectPresenceToAttachFile(attachmentChoice);
1392                    });
1393                }
1394            } else {
1395                activity.showInstallPgpDialog();
1396            }
1397        } else {
1398            selectPresenceToAttachFile(attachmentChoice);
1399        }
1400    }
1401
1402    @Override
1403    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
1404        if (grantResults.length > 0) {
1405            if (allGranted(grantResults)) {
1406                if (requestCode == REQUEST_START_DOWNLOAD) {
1407                    if (this.mPendingDownloadableMessage != null) {
1408                        startDownloadable(this.mPendingDownloadableMessage);
1409                    }
1410                } else if (requestCode == REQUEST_ADD_EDITOR_CONTENT) {
1411                    if (this.mPendingEditorContent != null) {
1412                        attachEditorContentToConversation(this.mPendingEditorContent);
1413                    }
1414                } else {
1415                    attachFile(requestCode);
1416                }
1417            } else {
1418                @StringRes int res;
1419                String firstDenied = getFirstDenied(grantResults, permissions);
1420                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1421                    res = R.string.no_microphone_permission;
1422                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1423                    res = R.string.no_camera_permission;
1424                } else {
1425                    res = R.string.no_storage_permission;
1426                }
1427                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1428            }
1429        }
1430        if (writeGranted(grantResults, permissions)) {
1431            if (activity != null && activity.xmppConnectionService != null) {
1432                activity.xmppConnectionService.restartFileObserver();
1433            }
1434        }
1435    }
1436
1437    public void startDownloadable(Message message) {
1438        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1439            this.mPendingDownloadableMessage = message;
1440            return;
1441        }
1442        Transferable transferable = message.getTransferable();
1443        if (transferable != null) {
1444            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1445                createNewConnection(message);
1446                return;
1447            }
1448            if (!transferable.start()) {
1449                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1450                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1451            }
1452        } else if (message.treatAsDownloadable()) {
1453            createNewConnection(message);
1454        }
1455    }
1456
1457    private void createNewConnection(final Message message) {
1458        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1459            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1460            return;
1461        }
1462        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1463    }
1464
1465    @SuppressLint("InflateParams")
1466    protected void clearHistoryDialog(final Conversation conversation) {
1467        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1468        builder.setTitle(getString(R.string.clear_conversation_history));
1469        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1470        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1471        builder.setView(dialogView);
1472        builder.setNegativeButton(getString(R.string.cancel), null);
1473        builder.setPositiveButton(getString(R.string.delete_messages), (dialog, which) -> {
1474            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1475            if (endConversationCheckBox.isChecked()) {
1476                this.activity.xmppConnectionService.archiveConversation(conversation);
1477                this.activity.onConversationArchived(conversation);
1478            } else {
1479                activity.onConversationsListItemUpdated();
1480                refresh();
1481            }
1482        });
1483        builder.create().show();
1484    }
1485
1486    protected void muteConversationDialog(final Conversation conversation) {
1487        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1488        builder.setTitle(R.string.disable_notifications);
1489        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1490        final CharSequence[] labels = new CharSequence[durations.length];
1491        for (int i = 0; i < durations.length; ++i) {
1492            if (durations[i] == -1) {
1493                labels[i] = getString(R.string.until_further_notice);
1494            } else {
1495                labels[i] = TimeframeUtils.resolve(activity, 1000L * durations[i]);
1496            }
1497        }
1498        builder.setItems(labels, (dialog, which) -> {
1499            final long till;
1500            if (durations[which] == -1) {
1501                till = Long.MAX_VALUE;
1502            } else {
1503                till = System.currentTimeMillis() + (durations[which] * 1000);
1504            }
1505            conversation.setMutedTill(till);
1506            activity.xmppConnectionService.updateConversation(conversation);
1507            activity.onConversationsListItemUpdated();
1508            refresh();
1509            getActivity().invalidateOptionsMenu();
1510        });
1511        builder.create().show();
1512    }
1513
1514    private boolean hasPermissions(int requestCode, String... permissions) {
1515        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1516            final List<String> missingPermissions = new ArrayList<>();
1517            for (String permission : permissions) {
1518                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1519                    continue;
1520                }
1521                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1522                    missingPermissions.add(permission);
1523                }
1524            }
1525            if (missingPermissions.size() == 0) {
1526                return true;
1527            } else {
1528                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1529                return false;
1530            }
1531        } else {
1532            return true;
1533        }
1534    }
1535
1536    public void unmuteConversation(final Conversation conversation) {
1537        conversation.setMutedTill(0);
1538        this.activity.xmppConnectionService.updateConversation(conversation);
1539        this.activity.onConversationsListItemUpdated();
1540        refresh();
1541        getActivity().invalidateOptionsMenu();
1542    }
1543
1544    protected void selectPresenceToAttachFile(final int attachmentChoice) {
1545        final Account account = conversation.getAccount();
1546        final PresenceSelector.OnPresenceSelected callback = () -> {
1547            Intent intent = new Intent();
1548            boolean chooser = false;
1549            switch (attachmentChoice) {
1550                case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1551                    intent.setAction(Intent.ACTION_GET_CONTENT);
1552                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1553                    intent.setType("image/*");
1554                    chooser = true;
1555                    break;
1556                case ATTACHMENT_CHOICE_RECORD_VIDEO:
1557                    intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1558                    break;
1559                case ATTACHMENT_CHOICE_TAKE_PHOTO:
1560                    final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1561                    pendingTakePhotoUri.push(uri);
1562                    intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1563                    intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1564                    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1565                    intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1566                    break;
1567                case ATTACHMENT_CHOICE_CHOOSE_FILE:
1568                    chooser = true;
1569                    intent.setType("*/*");
1570                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1571                    intent.addCategory(Intent.CATEGORY_OPENABLE);
1572                    intent.setAction(Intent.ACTION_GET_CONTENT);
1573                    break;
1574                case ATTACHMENT_CHOICE_RECORD_VOICE:
1575                    intent = new Intent(getActivity(), RecordingActivity.class);
1576                    break;
1577                case ATTACHMENT_CHOICE_LOCATION:
1578                    intent = GeoHelper.getFetchIntent(activity);
1579                    break;
1580            }
1581            if (intent.resolveActivity(getActivity().getPackageManager()) != null) {
1582                if (chooser) {
1583                    startActivityForResult(
1584                            Intent.createChooser(intent, getString(R.string.perform_action_with)),
1585                            attachmentChoice);
1586                } else {
1587                    startActivityForResult(intent, attachmentChoice);
1588                }
1589            }
1590        };
1591        if (account.httpUploadAvailable() || attachmentChoice == ATTACHMENT_CHOICE_LOCATION) {
1592            conversation.setNextCounterpart(null);
1593            callback.onPresenceSelected();
1594        } else {
1595            activity.selectPresence(conversation, callback);
1596        }
1597    }
1598
1599    @Override
1600    public void onResume() {
1601        super.onResume();
1602        binding.messagesView.post(this::fireReadEvent);
1603    }
1604
1605    private void fireReadEvent() {
1606        if (activity != null && this.conversation != null) {
1607            String uuid = getLastVisibleMessageUuid();
1608            if (uuid != null) {
1609                activity.onConversationRead(this.conversation, uuid);
1610            }
1611        }
1612    }
1613
1614    private String getLastVisibleMessageUuid() {
1615        if (binding == null) {
1616            return null;
1617        }
1618        synchronized (this.messageList) {
1619            int pos = binding.messagesView.getLastVisiblePosition();
1620            if (pos >= 0) {
1621                Message message = null;
1622                for (int i = pos; i >= 0; --i) {
1623                    try {
1624                        message = (Message) binding.messagesView.getItemAtPosition(i);
1625                    } catch (IndexOutOfBoundsException e) {
1626                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1627                        continue;
1628                    }
1629                    if (message.getType() != Message.TYPE_STATUS) {
1630                        break;
1631                    }
1632                }
1633                if (message != null) {
1634                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1635                        message = message.next();
1636                    }
1637                    return message.getUuid();
1638                }
1639            }
1640        }
1641        return null;
1642    }
1643
1644    private void showErrorMessage(final Message message) {
1645        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1646        builder.setTitle(R.string.error_message);
1647        builder.setMessage(message.getErrorMessage());
1648        builder.setPositiveButton(R.string.confirm, null);
1649        builder.create().show();
1650    }
1651
1652
1653    private void deleteFile(Message message) {
1654        if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1655            message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1656            activity.onConversationsListItemUpdated();
1657            refresh();
1658        }
1659    }
1660
1661    private void resendMessage(final Message message) {
1662        if (message.isFileOrImage()) {
1663            if (!(message.getConversation() instanceof Conversation)) {
1664                return;
1665            }
1666            final Conversation conversation = (Conversation) message.getConversation();
1667            DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1668            if (file.exists()) {
1669                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1670                if (!message.hasFileOnRemoteHost()
1671                        && xmppConnection != null
1672                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1673                    activity.selectPresence(conversation, () -> {
1674                        message.setCounterpart(conversation.getNextCounterpart());
1675                        activity.xmppConnectionService.resendFailedMessages(message);
1676                        new Handler().post(() -> {
1677                            int size = messageList.size();
1678                            this.binding.messagesView.setSelection(size - 1);
1679                        });
1680                    });
1681                    return;
1682                }
1683            } else {
1684                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1685                message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1686                activity.onConversationsListItemUpdated();
1687                refresh();
1688                return;
1689            }
1690        }
1691        activity.xmppConnectionService.resendFailedMessages(message);
1692        new Handler().post(() -> {
1693            int size = messageList.size();
1694            this.binding.messagesView.setSelection(size - 1);
1695        });
1696    }
1697
1698    private void cancelTransmission(Message message) {
1699        Transferable transferable = message.getTransferable();
1700        if (transferable != null) {
1701            transferable.cancel();
1702        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1703            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED);
1704        }
1705    }
1706
1707    private void retryDecryption(Message message) {
1708        message.setEncryption(Message.ENCRYPTION_PGP);
1709        activity.onConversationsListItemUpdated();
1710        refresh();
1711        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1712    }
1713
1714    public void privateMessageWith(final Jid counterpart) {
1715        if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1716            activity.xmppConnectionService.sendChatState(conversation);
1717        }
1718        this.binding.textinput.setText("");
1719        this.conversation.setNextCounterpart(counterpart);
1720        updateChatMsgHint();
1721        updateSendButton();
1722        updateEditablity();
1723    }
1724
1725    private void correctMessage(Message message) {
1726        while (message.mergeable(message.next())) {
1727            message = message.next();
1728        }
1729        this.conversation.setCorrectingMessage(message);
1730        final Editable editable = binding.textinput.getText();
1731        this.conversation.setDraftMessage(editable.toString());
1732        this.binding.textinput.setText("");
1733        this.binding.textinput.append(message.getBody());
1734
1735    }
1736
1737    private void highlightInConference(String nick) {
1738        final Editable editable = this.binding.textinput.getText();
1739        String oldString = editable.toString().trim();
1740        final int pos = this.binding.textinput.getSelectionStart();
1741        if (oldString.isEmpty() || pos == 0) {
1742            editable.insert(0, nick + ": ");
1743        } else {
1744            final char before = editable.charAt(pos - 1);
1745            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1746            if (before == '\n') {
1747                editable.insert(pos, nick + ": ");
1748            } else {
1749                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1750                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1751                        editable.insert(pos - 2, ", " + nick);
1752                        return;
1753                    }
1754                }
1755                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1756                if (Character.isWhitespace(after)) {
1757                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1758                }
1759            }
1760        }
1761    }
1762
1763    @Override
1764    public void startActivityForResult(Intent intent, int requestCode) {
1765        final Activity activity = getActivity();
1766        if (activity instanceof ConversationsActivity) {
1767            ((ConversationsActivity) activity).clearPendingViewIntent();
1768        }
1769        super.startActivityForResult(intent, requestCode);
1770    }
1771
1772    @Override
1773    public void onSaveInstanceState(Bundle outState) {
1774        super.onSaveInstanceState(outState);
1775        if (conversation != null) {
1776            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1777            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1778            final Uri uri = pendingTakePhotoUri.peek();
1779            if (uri != null) {
1780                outState.putString(STATE_PHOTO_URI, uri.toString());
1781            }
1782            final ScrollState scrollState = getScrollPosition();
1783            if (scrollState != null) {
1784                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1785            }
1786            final ArrayList<Attachment> attachments = mediaPreviewAdapter.getAttachments();
1787            if (attachments.size() > 0) {
1788                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1789            }
1790        }
1791    }
1792
1793    @Override
1794    public void onActivityCreated(Bundle savedInstanceState) {
1795        super.onActivityCreated(savedInstanceState);
1796        if (savedInstanceState == null) {
1797            return;
1798        }
1799        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1800        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1801        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1802        if (uuid != null) {
1803            QuickLoader.set(uuid);
1804            this.pendingConversationsUuid.push(uuid);
1805            if (attachments != null && attachments.size() > 0) {
1806                this.pendingMediaPreviews.push(attachments);
1807            }
1808            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1809            if (takePhotoUri != null) {
1810                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1811            }
1812            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1813        }
1814    }
1815
1816    @Override
1817    public void onStart() {
1818        super.onStart();
1819        if (this.reInitRequiredOnStart && this.conversation != null) {
1820            final Bundle extras = pendingExtras.pop();
1821            reInit(this.conversation, extras != null);
1822            if (extras != null) {
1823                processExtras(extras);
1824            }
1825        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
1826            final String uuid = pendingConversationsUuid.pop();
1827            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
1828            if (uuid != null) {
1829                findAndReInitByUuidOrArchive(uuid);
1830            }
1831        }
1832    }
1833
1834    @Override
1835    public void onStop() {
1836        super.onStop();
1837        final Activity activity = getActivity();
1838        messageListAdapter.unregisterListenerInAudioPlayer();
1839        if (activity == null || !activity.isChangingConfigurations()) {
1840            hideSoftKeyboard(activity);
1841            messageListAdapter.stopAudioPlayer();
1842        }
1843        if (this.conversation != null) {
1844            final String msg = this.binding.textinput.getText().toString();
1845            storeNextMessage(msg);
1846            updateChatState(this.conversation, msg);
1847            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
1848        }
1849        this.reInitRequiredOnStart = true;
1850    }
1851
1852    private void updateChatState(final Conversation conversation, final String msg) {
1853        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
1854        Account.State status = conversation.getAccount().getStatus();
1855        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
1856            activity.xmppConnectionService.sendChatState(conversation);
1857        }
1858    }
1859
1860    private void saveMessageDraftStopAudioPlayer() {
1861        final Conversation previousConversation = this.conversation;
1862        if (this.activity == null || this.binding == null || previousConversation == null) {
1863            return;
1864        }
1865        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
1866        final String msg = this.binding.textinput.getText().toString();
1867        storeNextMessage(msg);
1868        updateChatState(this.conversation, msg);
1869        messageListAdapter.stopAudioPlayer();
1870        mediaPreviewAdapter.clearPreviews();
1871        toggleInputMethod();
1872    }
1873
1874    public void reInit(Conversation conversation, Bundle extras) {
1875        QuickLoader.set(conversation.getUuid());
1876        this.saveMessageDraftStopAudioPlayer();
1877        this.clearPending();
1878        if (this.reInit(conversation, extras != null)) {
1879            if (extras != null) {
1880                processExtras(extras);
1881            }
1882            this.reInitRequiredOnStart = false;
1883        } else {
1884            this.reInitRequiredOnStart = true;
1885            pendingExtras.push(extras);
1886        }
1887        resetUnreadMessagesCount();
1888    }
1889
1890    private void reInit(Conversation conversation) {
1891        reInit(conversation, false);
1892    }
1893
1894    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
1895        if (conversation == null) {
1896            return false;
1897        }
1898        this.conversation = conversation;
1899        //once we set the conversation all is good and it will automatically do the right thing in onStart()
1900        if (this.activity == null || this.binding == null) {
1901            return false;
1902        }
1903
1904        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
1905            activity.onConversationArchived(this.conversation);
1906            return false;
1907        }
1908
1909        stopScrolling();
1910        Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
1911
1912        if (this.conversation.isRead() && hasExtras) {
1913            Log.d(Config.LOGTAG, "trimming conversation");
1914            this.conversation.trim();
1915        }
1916
1917        setupIme();
1918
1919        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
1920
1921        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
1922        this.binding.textinput.setKeyboardListener(null);
1923        this.binding.textinput.setText("");
1924        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
1925        if (participating) {
1926            this.binding.textinput.append(this.conversation.getNextMessage());
1927        }
1928        this.binding.textinput.setKeyboardListener(this);
1929        messageListAdapter.updatePreferences();
1930        refresh(false);
1931        this.conversation.messagesLoaded.set(true);
1932        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
1933
1934        if (hasExtras || scrolledToBottomAndNoPending) {
1935            resetUnreadMessagesCount();
1936            synchronized (this.messageList) {
1937                Log.d(Config.LOGTAG, "jump to first unread message");
1938                final Message first = conversation.getFirstUnreadMessage();
1939                final int bottom = Math.max(0, this.messageList.size() - 1);
1940                final int pos;
1941                final boolean jumpToBottom;
1942                if (first == null) {
1943                    pos = bottom;
1944                    jumpToBottom = true;
1945                } else {
1946                    int i = getIndexOf(first.getUuid(), this.messageList);
1947                    pos = i < 0 ? bottom : i;
1948                    jumpToBottom = false;
1949                }
1950                setSelection(pos, jumpToBottom);
1951            }
1952        }
1953
1954
1955        this.binding.messagesView.post(this::fireReadEvent);
1956        //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
1957        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
1958        return true;
1959    }
1960
1961    private void resetUnreadMessagesCount() {
1962        lastMessageUuid = null;
1963        hideUnreadMessagesCount();
1964    }
1965
1966    private void hideUnreadMessagesCount() {
1967        if (this.binding == null) {
1968            return;
1969        }
1970        this.binding.scrollToBottomButton.setEnabled(false);
1971        this.binding.scrollToBottomButton.setVisibility(View.GONE);
1972        this.binding.unreadCountCustomView.setVisibility(View.GONE);
1973    }
1974
1975    private void setSelection(int pos, boolean jumpToBottom) {
1976        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
1977        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
1978        this.binding.messagesView.post(this::fireReadEvent);
1979    }
1980
1981
1982    private boolean scrolledToBottom() {
1983        return this.binding != null && scrolledToBottom(this.binding.messagesView);
1984    }
1985
1986    private void processExtras(Bundle extras) {
1987        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
1988        final String text = extras.getString(Intent.EXTRA_TEXT);
1989        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
1990        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
1991        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
1992        final List<Uri> uris = extractUris(extras);
1993        if (uris != null && uris.size() > 0) {
1994            mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uris));
1995            toggleInputMethod();
1996            return;
1997        }
1998        if (nick != null) {
1999            if (pm) {
2000                Jid jid = conversation.getJid();
2001                try {
2002                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2003                    privateMessageWith(next);
2004                } catch (final IllegalArgumentException ignored) {
2005                    //do nothing
2006                }
2007            } else {
2008                final MucOptions mucOptions = conversation.getMucOptions();
2009                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2010                    highlightInConference(nick);
2011                }
2012            }
2013        } else {
2014            if (text != null && asQuote) {
2015                quoteText(text);
2016            } else {
2017                appendText(text);
2018            }
2019        }
2020        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2021        if (message != null) {
2022            startDownloadable(message);
2023        }
2024    }
2025
2026    private List<Uri> extractUris(Bundle extras) {
2027        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2028        if (uris != null) {
2029            return uris;
2030        }
2031        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2032        if (uri != null) {
2033            return Collections.singletonList(uri);
2034        } else {
2035            return null;
2036        }
2037    }
2038
2039    private boolean showBlockSubmenu(View view) {
2040        final Jid jid = conversation.getJid();
2041        if (jid.getLocal() == null) {
2042            BlockContactDialog.show(activity, conversation);
2043        } else {
2044            PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2045            popupMenu.inflate(R.menu.block);
2046            popupMenu.setOnMenuItemClickListener(menuItem -> {
2047                Blockable blockable;
2048                switch (menuItem.getItemId()) {
2049                    case R.id.block_domain:
2050                        blockable = conversation.getAccount().getRoster().getContact(Jid.ofDomain(jid.getDomain()));
2051                        break;
2052                    default:
2053                        blockable = conversation;
2054                }
2055                BlockContactDialog.show(activity, blockable);
2056                return true;
2057            });
2058            popupMenu.show();
2059        }
2060        return true;
2061    }
2062
2063    private void updateSnackBar(final Conversation conversation) {
2064        final Account account = conversation.getAccount();
2065        final XmppConnection connection = account.getXmppConnection();
2066        final int mode = conversation.getMode();
2067        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2068        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2069            return;
2070        }
2071        if (account.getStatus() == Account.State.DISABLED) {
2072            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2073        } else if (conversation.isBlocked()) {
2074            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2075        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2076            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2077        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2078            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2079        } else if (mode == Conversation.MODE_MULTI
2080                && !conversation.getMucOptions().online()
2081                && account.getStatus() == Account.State.ONLINE) {
2082            switch (conversation.getMucOptions().getError()) {
2083                case NICK_IN_USE:
2084                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2085                    break;
2086                case NO_RESPONSE:
2087                    showSnackbar(R.string.joining_conference, 0, null);
2088                    break;
2089                case SERVER_NOT_FOUND:
2090                    if (conversation.receivedMessagesCount() > 0) {
2091                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2092                    } else {
2093                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2094                    }
2095                    break;
2096                case PASSWORD_REQUIRED:
2097                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2098                    break;
2099                case BANNED:
2100                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2101                    break;
2102                case MEMBERS_ONLY:
2103                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2104                    break;
2105                case RESOURCE_CONSTRAINT:
2106                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2107                    break;
2108                case KICKED:
2109                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2110                    break;
2111                case UNKNOWN:
2112                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2113                    break;
2114                case INVALID_NICK:
2115                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2116                case SHUTDOWN:
2117                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2118                    break;
2119                case DESTROYED:
2120                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2121                    break;
2122                default:
2123                    hideSnackbar();
2124                    break;
2125            }
2126        } else if (account.hasPendingPgpIntent(conversation)) {
2127            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2128        } else if (connection != null
2129                && connection.getFeatures().blocking()
2130                && conversation.countMessages() != 0
2131                && !conversation.isBlocked()
2132                && conversation.isWithStranger()) {
2133            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2134        } else {
2135            hideSnackbar();
2136        }
2137    }
2138
2139    @Override
2140    public void refresh() {
2141        if (this.binding == null) {
2142            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2143            return;
2144        }
2145        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2146            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2147                activity.onConversationArchived(this.conversation);
2148                return;
2149            }
2150        }
2151        this.refresh(true);
2152    }
2153
2154    private void refresh(boolean notifyConversationRead) {
2155        synchronized (this.messageList) {
2156            if (this.conversation != null) {
2157                conversation.populateWithMessages(this.messageList);
2158                updateSnackBar(conversation);
2159                updateStatusMessages();
2160                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2161                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2162                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2163                }
2164                this.messageListAdapter.notifyDataSetChanged();
2165                updateChatMsgHint();
2166                if (notifyConversationRead && activity != null) {
2167                    binding.messagesView.post(this::fireReadEvent);
2168                }
2169                updateSendButton();
2170                updateEditablity();
2171                activity.invalidateOptionsMenu();
2172            }
2173        }
2174    }
2175
2176    protected void messageSent() {
2177        mSendingPgpMessage.set(false);
2178        this.binding.textinput.setText("");
2179        if (conversation.setCorrectingMessage(null)) {
2180            this.binding.textinput.append(conversation.getDraftMessage());
2181            conversation.setDraftMessage(null);
2182        }
2183        storeNextMessage();
2184        updateChatMsgHint();
2185        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2186        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2187        if (prefScrollToBottom || scrolledToBottom()) {
2188            new Handler().post(() -> {
2189                int size = messageList.size();
2190                this.binding.messagesView.setSelection(size - 1);
2191            });
2192        }
2193    }
2194
2195    private boolean storeNextMessage() {
2196        return storeNextMessage(this.binding.textinput.getText().toString());
2197    }
2198
2199    private boolean storeNextMessage(String msg) {
2200        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2201        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2202            this.activity.xmppConnectionService.updateConversation(this.conversation);
2203            return true;
2204        }
2205        return false;
2206    }
2207
2208    public void doneSendingPgpMessage() {
2209        mSendingPgpMessage.set(false);
2210    }
2211
2212    public long getMaxHttpUploadSize(Conversation conversation) {
2213        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2214        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2215    }
2216
2217    private void updateEditablity() {
2218        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2219        this.binding.textinput.setFocusable(canWrite);
2220        this.binding.textinput.setFocusableInTouchMode(canWrite);
2221        this.binding.textSendButton.setEnabled(canWrite);
2222        this.binding.textinput.setCursorVisible(canWrite);
2223        this.binding.textinput.setEnabled(canWrite);
2224    }
2225
2226    public void updateSendButton() {
2227        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2228        boolean useSendButtonToIndicateStatus = PreferenceManager.getDefaultSharedPreferences(getActivity()).getBoolean("send_button_status", getResources().getBoolean(R.bool.send_button_status));
2229        final Conversation c = this.conversation;
2230        final Presence.Status status;
2231        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2232        final SendButtonAction action;
2233        if (hasAttachments) {
2234            action = SendButtonAction.TEXT;
2235        } else {
2236            action = SendButtonTool.getAction(getActivity(), c, text);
2237        }
2238        if (useSendButtonToIndicateStatus && c.getAccount().getStatus() == Account.State.ONLINE) {
2239            if (activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2240                status = Presence.Status.OFFLINE;
2241            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2242                status = c.getContact().getShownStatus();
2243            } else {
2244                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2245            }
2246        } else {
2247            status = Presence.Status.OFFLINE;
2248        }
2249        this.binding.textSendButton.setTag(action);
2250        this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(getActivity(), action, status));
2251    }
2252
2253    protected void updateDateSeparators() {
2254        synchronized (this.messageList) {
2255            DateSeparator.addAll(this.messageList);
2256        }
2257    }
2258
2259    protected void updateStatusMessages() {
2260        updateDateSeparators();
2261        synchronized (this.messageList) {
2262            if (showLoadMoreMessages(conversation)) {
2263                this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2264            }
2265            if (conversation.getMode() == Conversation.MODE_SINGLE) {
2266                ChatState state = conversation.getIncomingChatState();
2267                if (state == ChatState.COMPOSING) {
2268                    this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2269                } else if (state == ChatState.PAUSED) {
2270                    this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2271                } else {
2272                    for (int i = this.messageList.size() - 1; i >= 0; --i) {
2273                        if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) {
2274                            return;
2275                        } else {
2276                            if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) {
2277                                this.messageList.add(i + 1,
2278                                        Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2279                                return;
2280                            }
2281                        }
2282                    }
2283                }
2284            } else {
2285                final MucOptions mucOptions = conversation.getMucOptions();
2286                final List<MucOptions.User> allUsers = mucOptions.getUsers();
2287                final Set<ReadByMarker> addedMarkers = new HashSet<>();
2288                ChatState state = ChatState.COMPOSING;
2289                List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2290                if (users.size() == 0) {
2291                    state = ChatState.PAUSED;
2292                    users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2293                }
2294                if (mucOptions.isPrivateAndNonAnonymous()) {
2295                    for (int i = this.messageList.size() - 1; i >= 0; --i) {
2296                        final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2297                        final List<MucOptions.User> shownMarkers = new ArrayList<>();
2298                        for (ReadByMarker marker : markersForMessage) {
2299                            if (!ReadByMarker.contains(marker, addedMarkers)) {
2300                                addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2301                                MucOptions.User user = mucOptions.findUser(marker);
2302                                if (user != null && !users.contains(user)) {
2303                                    shownMarkers.add(user);
2304                                }
2305                            }
2306                        }
2307                        final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2308                        final Message statusMessage;
2309                        final int size = shownMarkers.size();
2310                        if (size > 1) {
2311                            final String body;
2312                            if (size <= 4) {
2313                                body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2314                            } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2315                                body = getString(R.string.everyone_has_read_up_to_this_point);
2316                            } else {
2317                                body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2318                            }
2319                            statusMessage = Message.createStatusMessage(conversation, body);
2320                            statusMessage.setCounterparts(shownMarkers);
2321                        } else if (size == 1) {
2322                            statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2323                            statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2324                            statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2325                        } else {
2326                            statusMessage = null;
2327                        }
2328                        if (statusMessage != null) {
2329                            this.messageList.add(i + 1, statusMessage);
2330                        }
2331                        addedMarkers.add(markerForSender);
2332                        if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2333                            break;
2334                        }
2335                    }
2336                }
2337                if (users.size() > 0) {
2338                    Message statusMessage;
2339                    if (users.size() == 1) {
2340                        MucOptions.User user = users.get(0);
2341                        int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2342                        statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2343                        statusMessage.setTrueCounterpart(user.getRealJid());
2344                        statusMessage.setCounterpart(user.getFullJid());
2345                    } else {
2346                        int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2347                        statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2348                        statusMessage.setCounterparts(users);
2349                    }
2350                    this.messageList.add(statusMessage);
2351                }
2352
2353            }
2354        }
2355    }
2356
2357    private void stopScrolling() {
2358        long now = SystemClock.uptimeMillis();
2359        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2360        binding.messagesView.dispatchTouchEvent(cancel);
2361    }
2362
2363    private boolean showLoadMoreMessages(final Conversation c) {
2364        if (activity == null || activity.xmppConnectionService == null) {
2365            return false;
2366        }
2367        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2368        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2369        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2370    }
2371
2372    private boolean hasMamSupport(final Conversation c) {
2373        if (c.getMode() == Conversation.MODE_SINGLE) {
2374            final XmppConnection connection = c.getAccount().getXmppConnection();
2375            return connection != null && connection.getFeatures().mam();
2376        } else {
2377            return c.getMucOptions().mamSupport();
2378        }
2379    }
2380
2381    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2382        showSnackbar(message, action, clickListener, null);
2383    }
2384
2385    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2386        this.binding.snackbar.setVisibility(View.VISIBLE);
2387        this.binding.snackbar.setOnClickListener(null);
2388        this.binding.snackbarMessage.setText(message);
2389        this.binding.snackbarMessage.setOnClickListener(null);
2390        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2391        if (action != 0) {
2392            this.binding.snackbarAction.setText(action);
2393        }
2394        this.binding.snackbarAction.setOnClickListener(clickListener);
2395        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2396    }
2397
2398    protected void hideSnackbar() {
2399        this.binding.snackbar.setVisibility(View.GONE);
2400    }
2401
2402    protected void sendMessage(Message message) {
2403        activity.xmppConnectionService.sendMessage(message);
2404        messageSent();
2405    }
2406
2407    protected void sendPgpMessage(final Message message) {
2408        final XmppConnectionService xmppService = activity.xmppConnectionService;
2409        final Contact contact = message.getConversation().getContact();
2410        if (!activity.hasPgp()) {
2411            activity.showInstallPgpDialog();
2412            return;
2413        }
2414        if (conversation.getAccount().getPgpSignature() == null) {
2415            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2416            return;
2417        }
2418        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2419            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2420        }
2421        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2422            if (contact.getPgpKeyId() != 0) {
2423                xmppService.getPgpEngine().hasKey(contact,
2424                        new UiCallback<Contact>() {
2425
2426                            @Override
2427                            public void userInputRequried(PendingIntent pi, Contact contact) {
2428                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2429                            }
2430
2431                            @Override
2432                            public void success(Contact contact) {
2433                                encryptTextMessage(message);
2434                            }
2435
2436                            @Override
2437                            public void error(int error, Contact contact) {
2438                                activity.runOnUiThread(() -> Toast.makeText(activity,
2439                                        R.string.unable_to_connect_to_keychain,
2440                                        Toast.LENGTH_SHORT
2441                                ).show());
2442                                mSendingPgpMessage.set(false);
2443                            }
2444                        });
2445
2446            } else {
2447                showNoPGPKeyDialog(false, (dialog, which) -> {
2448                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2449                    xmppService.updateConversation(conversation);
2450                    message.setEncryption(Message.ENCRYPTION_NONE);
2451                    xmppService.sendMessage(message);
2452                    messageSent();
2453                });
2454            }
2455        } else {
2456            if (conversation.getMucOptions().pgpKeysInUse()) {
2457                if (!conversation.getMucOptions().everybodyHasKeys()) {
2458                    Toast warning = Toast
2459                            .makeText(getActivity(),
2460                                    R.string.missing_public_keys,
2461                                    Toast.LENGTH_LONG);
2462                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2463                    warning.show();
2464                }
2465                encryptTextMessage(message);
2466            } else {
2467                showNoPGPKeyDialog(true, (dialog, which) -> {
2468                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2469                    message.setEncryption(Message.ENCRYPTION_NONE);
2470                    xmppService.updateConversation(conversation);
2471                    xmppService.sendMessage(message);
2472                    messageSent();
2473                });
2474            }
2475        }
2476    }
2477
2478    public void encryptTextMessage(Message message) {
2479        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2480                new UiCallback<Message>() {
2481
2482                    @Override
2483                    public void userInputRequried(PendingIntent pi, Message message) {
2484                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2485                    }
2486
2487                    @Override
2488                    public void success(Message message) {
2489                        //TODO the following two call can be made before the callback
2490                        getActivity().runOnUiThread(() -> messageSent());
2491                    }
2492
2493                    @Override
2494                    public void error(final int error, Message message) {
2495                        getActivity().runOnUiThread(() -> {
2496                            doneSendingPgpMessage();
2497                            Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
2498                        });
2499
2500                    }
2501                });
2502    }
2503
2504    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2505        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2506        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2507        if (plural) {
2508            builder.setTitle(getString(R.string.no_pgp_keys));
2509            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2510        } else {
2511            builder.setTitle(getString(R.string.no_pgp_key));
2512            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2513        }
2514        builder.setNegativeButton(getString(R.string.cancel), null);
2515        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2516        builder.create().show();
2517    }
2518
2519    public void appendText(String text) {
2520        if (text == null) {
2521            return;
2522        }
2523        String previous = this.binding.textinput.getText().toString();
2524        if (UIHelper.isLastLineQuote(previous)) {
2525            text = '\n' + text;
2526        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2527            text = " " + text;
2528        }
2529        this.binding.textinput.append(text);
2530    }
2531
2532    @Override
2533    public boolean onEnterPressed() {
2534        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2535        final boolean enterIsSend = p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2536        if (enterIsSend) {
2537            sendMessage();
2538            return true;
2539        } else {
2540            return false;
2541        }
2542    }
2543
2544    @Override
2545    public void onTypingStarted() {
2546        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2547        if (service == null) {
2548            return;
2549        }
2550        Account.State status = conversation.getAccount().getStatus();
2551        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2552            service.sendChatState(conversation);
2553        }
2554        updateSendButton();
2555    }
2556
2557    @Override
2558    public void onTypingStopped() {
2559        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2560        if (service == null) {
2561            return;
2562        }
2563        Account.State status = conversation.getAccount().getStatus();
2564        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2565            service.sendChatState(conversation);
2566        }
2567    }
2568
2569    @Override
2570    public void onTextDeleted() {
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(Config.DEFAULT_CHATSTATE)) {
2577            service.sendChatState(conversation);
2578        }
2579        if (storeNextMessage()) {
2580            activity.onConversationsListItemUpdated();
2581        }
2582        updateSendButton();
2583    }
2584
2585    @Override
2586    public void onTextChanged() {
2587        if (conversation != null && conversation.getCorrectingMessage() != null) {
2588            updateSendButton();
2589        }
2590    }
2591
2592    @Override
2593    public boolean onTabPressed(boolean repeated) {
2594        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2595            return false;
2596        }
2597        if (repeated) {
2598            completionIndex++;
2599        } else {
2600            lastCompletionLength = 0;
2601            completionIndex = 0;
2602            final String content = this.binding.textinput.getText().toString();
2603            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2604            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2605            firstWord = start == 0;
2606            incomplete = content.substring(start, lastCompletionCursor);
2607        }
2608        List<String> completions = new ArrayList<>();
2609        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2610            String name = user.getName();
2611            if (name != null && name.startsWith(incomplete)) {
2612                completions.add(name + (firstWord ? ": " : " "));
2613            }
2614        }
2615        Collections.sort(completions);
2616        if (completions.size() > completionIndex) {
2617            String completion = completions.get(completionIndex).substring(incomplete.length());
2618            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2619            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2620            lastCompletionLength = completion.length();
2621        } else {
2622            completionIndex = -1;
2623            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2624            lastCompletionLength = 0;
2625        }
2626        return true;
2627    }
2628
2629    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2630        try {
2631            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2632        } catch (final SendIntentException ignored) {
2633        }
2634    }
2635
2636    @Override
2637    public void onBackendConnected() {
2638        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2639        String uuid = pendingConversationsUuid.pop();
2640        if (uuid != null) {
2641            if (!findAndReInitByUuidOrArchive(uuid)) {
2642                return;
2643            }
2644        } else {
2645            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2646                clearPending();
2647                activity.onConversationArchived(conversation);
2648                return;
2649            }
2650        }
2651        ActivityResult activityResult = postponedActivityResult.pop();
2652        if (activityResult != null) {
2653            handleActivityResult(activityResult);
2654        }
2655        clearPending();
2656    }
2657
2658    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2659        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2660        if (conversation == null) {
2661            clearPending();
2662            activity.onConversationArchived(null);
2663            return false;
2664        }
2665        reInit(conversation);
2666        ScrollState scrollState = pendingScrollState.pop();
2667        String lastMessageUuid = pendingLastMessageUuid.pop();
2668        List<Attachment> attachments = pendingMediaPreviews.pop();
2669        if (scrollState != null) {
2670            setScrollPosition(scrollState, lastMessageUuid);
2671        }
2672        if (attachments != null && attachments.size() > 0) {
2673            Log.d(Config.LOGTAG, "had attachments on restore");
2674            mediaPreviewAdapter.addMediaPreviews(attachments);
2675            toggleInputMethod();
2676        }
2677        return true;
2678    }
2679
2680    private void clearPending() {
2681        if (postponedActivityResult.clear()) {
2682            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2683        }
2684        if (pendingScrollState.clear()) {
2685            Log.e(Config.LOGTAG, "cleared scroll state");
2686        }
2687        if (pendingTakePhotoUri.clear()) {
2688            Log.e(Config.LOGTAG, "cleared pending photo uri");
2689        }
2690    }
2691
2692    public Conversation getConversation() {
2693        return conversation;
2694    }
2695}