ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.Activity;
   6import android.app.FragmentManager;
   7import android.content.SharedPreferences;
   8import android.content.pm.PackageManager;
   9import android.databinding.DataBindingUtil;
  10import android.net.Uri;
  11import android.os.Build;
  12import android.preference.PreferenceManager;
  13import android.provider.MediaStore;
  14import android.support.annotation.IdRes;
  15import android.support.annotation.NonNull;
  16import android.support.annotation.StringRes;
  17import android.support.v7.app.AlertDialog;
  18import android.app.Fragment;
  19import android.app.PendingIntent;
  20import android.content.Context;
  21import android.content.DialogInterface;
  22import android.content.Intent;
  23import android.content.IntentSender.SendIntentException;
  24import android.os.Bundle;
  25import android.os.Handler;
  26import android.os.SystemClock;
  27import android.support.v13.view.inputmethod.InputConnectionCompat;
  28import android.support.v13.view.inputmethod.InputContentInfoCompat;
  29import android.text.Editable;
  30import android.text.TextUtils;
  31import android.util.Log;
  32import android.view.ContextMenu;
  33import android.view.ContextMenu.ContextMenuInfo;
  34import android.view.Gravity;
  35import android.view.LayoutInflater;
  36import android.view.Menu;
  37import android.view.MenuInflater;
  38import android.view.MenuItem;
  39import android.view.MotionEvent;
  40import android.view.View;
  41import android.view.View.OnClickListener;
  42import android.view.ViewGroup;
  43import android.view.inputmethod.EditorInfo;
  44import android.view.inputmethod.InputMethodManager;
  45import android.widget.AbsListView;
  46import android.widget.AbsListView.OnScrollListener;
  47import android.widget.AdapterView;
  48import android.widget.AdapterView.AdapterContextMenuInfo;
  49import android.widget.CheckBox;
  50import android.widget.ListView;
  51import android.widget.PopupMenu;
  52import android.widget.TextView.OnEditorActionListener;
  53import android.widget.Toast;
  54
  55import java.util.ArrayList;
  56import java.util.Arrays;
  57import java.util.Collections;
  58import java.util.HashSet;
  59import java.util.Iterator;
  60import java.util.List;
  61import java.util.Set;
  62import java.util.UUID;
  63import java.util.concurrent.atomic.AtomicBoolean;
  64
  65import eu.siacs.conversations.Config;
  66import eu.siacs.conversations.R;
  67import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  68import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  69import eu.siacs.conversations.databinding.FragmentConversationBinding;
  70import eu.siacs.conversations.entities.Account;
  71import eu.siacs.conversations.entities.Blockable;
  72import eu.siacs.conversations.entities.Contact;
  73import eu.siacs.conversations.entities.Conversation;
  74import eu.siacs.conversations.entities.Conversational;
  75import eu.siacs.conversations.entities.DownloadableFile;
  76import eu.siacs.conversations.entities.Message;
  77import eu.siacs.conversations.entities.MucOptions;
  78import eu.siacs.conversations.entities.MucOptions.User;
  79import eu.siacs.conversations.entities.Presence;
  80import eu.siacs.conversations.entities.ReadByMarker;
  81import eu.siacs.conversations.entities.Transferable;
  82import eu.siacs.conversations.entities.TransferablePlaceholder;
  83import eu.siacs.conversations.http.HttpDownloadConnection;
  84import eu.siacs.conversations.persistance.FileBackend;
  85import eu.siacs.conversations.services.MessageArchiveService;
  86import eu.siacs.conversations.services.XmppConnectionService;
  87import eu.siacs.conversations.ui.adapter.MediaPreviewAdapter;
  88import eu.siacs.conversations.ui.adapter.MessageAdapter;
  89import eu.siacs.conversations.ui.util.ActivityResult;
  90import eu.siacs.conversations.ui.util.Attachment;
  91import eu.siacs.conversations.ui.util.ConversationMenuConfigurator;
  92import eu.siacs.conversations.ui.util.DateSeparator;
  93import eu.siacs.conversations.ui.util.EditMessageActionModeCallback;
  94import eu.siacs.conversations.ui.util.ListViewUtils;
  95import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
  96import eu.siacs.conversations.ui.util.MucDetailsContextMenuHelper;
  97import eu.siacs.conversations.ui.util.PendingItem;
  98import eu.siacs.conversations.ui.util.PresenceSelector;
  99import eu.siacs.conversations.ui.util.ScrollState;
 100import eu.siacs.conversations.ui.util.SendButtonAction;
 101import eu.siacs.conversations.ui.util.SendButtonTool;
 102import eu.siacs.conversations.ui.util.ShareUtil;
 103import eu.siacs.conversations.ui.widget.EditMessage;
 104import eu.siacs.conversations.utils.GeoHelper;
 105import eu.siacs.conversations.utils.MessageUtils;
 106import eu.siacs.conversations.utils.NickValidityChecker;
 107import eu.siacs.conversations.utils.Patterns;
 108import eu.siacs.conversations.utils.QuickLoader;
 109import eu.siacs.conversations.utils.StylingHelper;
 110import eu.siacs.conversations.utils.TimeframeUtils;
 111import eu.siacs.conversations.utils.UIHelper;
 112import eu.siacs.conversations.xmpp.XmppConnection;
 113import eu.siacs.conversations.xmpp.chatstate.ChatState;
 114import eu.siacs.conversations.xmpp.jingle.JingleConnection;
 115import rocks.xmpp.addr.Jid;
 116
 117import static eu.siacs.conversations.ui.XmppActivity.EXTRA_ACCOUNT;
 118import static eu.siacs.conversations.ui.XmppActivity.REQUEST_INVITE_TO_CONVERSATION;
 119import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
 120
 121
 122public class ConversationFragment extends XmppFragment implements EditMessage.KeyboardListener, MessageAdapter.OnContactPictureLongClicked, MessageAdapter.OnContactPictureClicked {
 123
 124
 125    public static final int REQUEST_SEND_MESSAGE = 0x0201;
 126    public static final int REQUEST_DECRYPT_PGP = 0x0202;
 127    public static final int REQUEST_ENCRYPT_MESSAGE = 0x0207;
 128    public static final int REQUEST_TRUST_KEYS_TEXT = 0x0208;
 129    public static final int REQUEST_TRUST_KEYS_ATTACHMENTS = 0x0209;
 130    public static final int REQUEST_START_DOWNLOAD = 0x0210;
 131    public static final int REQUEST_ADD_EDITOR_CONTENT = 0x0211;
 132    public static final int REQUEST_COMMIT_ATTACHMENTS = 0x0212;
 133    public static final int ATTACHMENT_CHOICE_CHOOSE_IMAGE = 0x0301;
 134    public static final int ATTACHMENT_CHOICE_TAKE_PHOTO = 0x0302;
 135    public static final int ATTACHMENT_CHOICE_CHOOSE_FILE = 0x0303;
 136    public static final int ATTACHMENT_CHOICE_RECORD_VOICE = 0x0304;
 137    public static final int ATTACHMENT_CHOICE_LOCATION = 0x0305;
 138    public static final int ATTACHMENT_CHOICE_INVALID = 0x0306;
 139    public static final int ATTACHMENT_CHOICE_RECORD_VIDEO = 0x0307;
 140
 141    public static final String RECENTLY_USED_QUICK_ACTION = "recently_used_quick_action";
 142    public static final String STATE_CONVERSATION_UUID = ConversationFragment.class.getName() + ".uuid";
 143    public static final String STATE_SCROLL_POSITION = ConversationFragment.class.getName() + ".scroll_position";
 144    public static final String STATE_PHOTO_URI = ConversationFragment.class.getName() + ".media_previews";
 145    public static final String STATE_MEDIA_PREVIEWS = ConversationFragment.class.getName() + ".take_photo_uri";
 146    private static final String STATE_LAST_MESSAGE_UUID = "state_last_message_uuid";
 147
 148    private final List<Message> messageList = new ArrayList<>();
 149    private final PendingItem<ActivityResult> postponedActivityResult = new PendingItem<>();
 150    private final PendingItem<String> pendingConversationsUuid = new PendingItem<>();
 151    private final PendingItem<ArrayList<Attachment>> pendingMediaPreviews = new PendingItem<>();
 152    private final PendingItem<Bundle> pendingExtras = new PendingItem<>();
 153    private final PendingItem<Uri> pendingTakePhotoUri = new PendingItem<>();
 154    private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
 155    private final PendingItem<String> pendingLastMessageUuid = new PendingItem<>();
 156    private final PendingItem<Message> pendingMessage = new PendingItem<>();
 157    public Uri mPendingEditorContent = null;
 158    protected MessageAdapter messageListAdapter;
 159    private MediaPreviewAdapter mediaPreviewAdapter;
 160    private String lastMessageUuid = null;
 161    private Conversation conversation;
 162    private FragmentConversationBinding binding;
 163    private Toast messageLoaderToast;
 164    private ConversationsActivity activity;
 165    private boolean reInitRequiredOnStart = true;
 166    private OnClickListener clickToMuc = new OnClickListener() {
 167
 168        @Override
 169        public void onClick(View v) {
 170            Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 171            intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 172            intent.putExtra("uuid", conversation.getUuid());
 173            startActivity(intent);
 174        }
 175    };
 176    private OnClickListener leaveMuc = new OnClickListener() {
 177
 178        @Override
 179        public void onClick(View v) {
 180            activity.xmppConnectionService.archiveConversation(conversation);
 181        }
 182    };
 183    private OnClickListener joinMuc = new OnClickListener() {
 184
 185        @Override
 186        public void onClick(View v) {
 187            activity.xmppConnectionService.joinMuc(conversation);
 188        }
 189    };
 190
 191    private OnClickListener acceptJoin = new OnClickListener() {
 192        @Override
 193        public void onClick(View v) {
 194            conversation.setAttribute("accept_non_anonymous",true);
 195            activity.xmppConnectionService.updateConversation(conversation);
 196            activity.xmppConnectionService.joinMuc(conversation);
 197        }
 198    };
 199
 200    private OnClickListener enterPassword = new OnClickListener() {
 201
 202        @Override
 203        public void onClick(View v) {
 204            MucOptions muc = conversation.getMucOptions();
 205            String password = muc.getPassword();
 206            if (password == null) {
 207                password = "";
 208            }
 209            activity.quickPasswordEdit(password, value -> {
 210                activity.xmppConnectionService.providePasswordForMuc(conversation, value);
 211                return null;
 212            });
 213        }
 214    };
 215    private OnScrollListener mOnScrollListener = new OnScrollListener() {
 216
 217        @Override
 218        public void onScrollStateChanged(AbsListView view, int scrollState) {
 219            if (AbsListView.OnScrollListener.SCROLL_STATE_IDLE == scrollState) {
 220                fireReadEvent();
 221            }
 222        }
 223
 224        @Override
 225        public void onScroll(final AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
 226            toggleScrollDownButton(view);
 227            synchronized (ConversationFragment.this.messageList) {
 228                if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true, false) && messageList.size() > 0) {
 229                    long timestamp;
 230                    if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 231                        timestamp = messageList.get(1).getTimeSent();
 232                    } else {
 233                        timestamp = messageList.get(0).getTimeSent();
 234                    }
 235                    activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 236                        @Override
 237                        public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 238                            if (ConversationFragment.this.conversation != conversation) {
 239                                conversation.messagesLoaded.set(true);
 240                                return;
 241                            }
 242                            runOnUiThread(() -> {
 243                                synchronized (messageList) {
 244                                    final int oldPosition = binding.messagesView.getFirstVisiblePosition();
 245                                    Message message = null;
 246                                    int childPos;
 247                                    for (childPos = 0; childPos + oldPosition < messageList.size(); ++childPos) {
 248                                        message = messageList.get(oldPosition + childPos);
 249                                        if (message.getType() != Message.TYPE_STATUS) {
 250                                            break;
 251                                        }
 252                                    }
 253                                    final String uuid = message != null ? message.getUuid() : null;
 254                                    View v = binding.messagesView.getChildAt(childPos);
 255                                    final int pxOffset = (v == null) ? 0 : v.getTop();
 256                                    ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 257                                    try {
 258                                        updateStatusMessages();
 259                                    } catch (IllegalStateException e) {
 260                                        Log.d(Config.LOGTAG, "caught illegal state exception while updating status messages");
 261                                    }
 262                                    messageListAdapter.notifyDataSetChanged();
 263                                    int pos = Math.max(getIndexOf(uuid, messageList), 0);
 264                                    binding.messagesView.setSelectionFromTop(pos, pxOffset);
 265                                    if (messageLoaderToast != null) {
 266                                        messageLoaderToast.cancel();
 267                                    }
 268                                    conversation.messagesLoaded.set(true);
 269                                }
 270                            });
 271                        }
 272
 273                        @Override
 274                        public void informUser(final int resId) {
 275
 276                            runOnUiThread(() -> {
 277                                if (messageLoaderToast != null) {
 278                                    messageLoaderToast.cancel();
 279                                }
 280                                if (ConversationFragment.this.conversation != conversation) {
 281                                    return;
 282                                }
 283                                messageLoaderToast = Toast.makeText(view.getContext(), resId, Toast.LENGTH_LONG);
 284                                messageLoaderToast.show();
 285                            });
 286
 287                        }
 288                    });
 289
 290                }
 291            }
 292        }
 293    };
 294    private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 295        @Override
 296        public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 297            // try to get permission to read the image, if applicable
 298            if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 299                try {
 300                    inputContentInfo.requestPermission();
 301                } catch (Exception e) {
 302                    Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 303                    Toast.makeText(getActivity(), activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()), Toast.LENGTH_LONG
 304                    ).show();
 305                    return false;
 306                }
 307            }
 308            if (hasPermissions(REQUEST_ADD_EDITOR_CONTENT, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 309                attachEditorContentToConversation(inputContentInfo.getContentUri());
 310            } else {
 311                mPendingEditorContent = inputContentInfo.getContentUri();
 312            }
 313            return true;
 314        }
 315    };
 316    private Message selectedMessage;
 317    private OnClickListener mEnableAccountListener = new OnClickListener() {
 318        @Override
 319        public void onClick(View v) {
 320            final Account account = conversation == null ? null : conversation.getAccount();
 321            if (account != null) {
 322                account.setOption(Account.OPTION_DISABLED, false);
 323                activity.xmppConnectionService.updateAccount(account);
 324            }
 325        }
 326    };
 327    private OnClickListener mUnblockClickListener = new OnClickListener() {
 328        @Override
 329        public void onClick(final View v) {
 330            v.post(() -> v.setVisibility(View.INVISIBLE));
 331            if (conversation.isDomainBlocked()) {
 332                BlockContactDialog.show(activity, conversation);
 333            } else {
 334                unblockConversation(conversation);
 335            }
 336        }
 337    };
 338    private OnClickListener mBlockClickListener = this::showBlockSubmenu;
 339    private OnClickListener mAddBackClickListener = new OnClickListener() {
 340
 341        @Override
 342        public void onClick(View v) {
 343            final Contact contact = conversation == null ? null : conversation.getContact();
 344            if (contact != null) {
 345                activity.xmppConnectionService.createContact(contact, true);
 346                activity.switchToContactDetails(contact);
 347            }
 348        }
 349    };
 350    private View.OnLongClickListener mLongPressBlockListener = this::showBlockSubmenu;
 351    private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 352        @Override
 353        public void onClick(View v) {
 354            final Contact contact = conversation == null ? null : conversation.getContact();
 355            if (contact != null) {
 356                activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 357                        activity.xmppConnectionService.getPresenceGenerator()
 358                                .sendPresenceUpdatesTo(contact));
 359                hideSnackbar();
 360            }
 361        }
 362    };
 363    protected OnClickListener clickToDecryptListener = new OnClickListener() {
 364
 365        @Override
 366        public void onClick(View v) {
 367            PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 368            if (pendingIntent != null) {
 369                try {
 370                    getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(),
 371                            REQUEST_DECRYPT_PGP,
 372                            null,
 373                            0,
 374                            0,
 375                            0);
 376                } catch (SendIntentException e) {
 377                    Toast.makeText(getActivity(), R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 378                    conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 379                }
 380            }
 381            updateSnackBar(conversation);
 382        }
 383    };
 384    private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
 385    private OnEditorActionListener mEditorActionListener = (v, actionId, event) -> {
 386        if (actionId == EditorInfo.IME_ACTION_SEND) {
 387            InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
 388            if (imm != null && imm.isFullscreenMode()) {
 389                imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 390            }
 391            sendMessage();
 392            return true;
 393        } else {
 394            return false;
 395        }
 396    };
 397    private OnClickListener mScrollButtonListener = new OnClickListener() {
 398
 399        @Override
 400        public void onClick(View v) {
 401            stopScrolling();
 402            setSelection(binding.messagesView.getCount() - 1, true);
 403        }
 404    };
 405    private OnClickListener mSendButtonListener = new OnClickListener() {
 406
 407        @Override
 408        public void onClick(View v) {
 409            Object tag = v.getTag();
 410            if (tag instanceof SendButtonAction) {
 411                SendButtonAction action = (SendButtonAction) tag;
 412                switch (action) {
 413                    case TAKE_PHOTO:
 414                    case RECORD_VIDEO:
 415                    case SEND_LOCATION:
 416                    case RECORD_VOICE:
 417                    case CHOOSE_PICTURE:
 418                        attachFile(action.toChoice());
 419                        break;
 420                    case CANCEL:
 421                        if (conversation != null) {
 422                            if (conversation.setCorrectingMessage(null)) {
 423                                binding.textinput.setText("");
 424                                binding.textinput.append(conversation.getDraftMessage());
 425                                conversation.setDraftMessage(null);
 426                            } else if (conversation.getMode() == Conversation.MODE_MULTI) {
 427                                conversation.setNextCounterpart(null);
 428                            }
 429                            updateChatMsgHint();
 430                            updateSendButton();
 431                            updateEditablity();
 432                        }
 433                        break;
 434                    default:
 435                        sendMessage();
 436                }
 437            } else {
 438                sendMessage();
 439            }
 440        }
 441    };
 442    private int completionIndex = 0;
 443    private int lastCompletionLength = 0;
 444    private String incomplete;
 445    private int lastCompletionCursor;
 446    private boolean firstWord = false;
 447    private Message mPendingDownloadableMessage;
 448
 449    private static ConversationFragment findConversationFragment(Activity activity) {
 450        Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
 451        if (fragment != null && fragment instanceof ConversationFragment) {
 452            return (ConversationFragment) fragment;
 453        }
 454        fragment = activity.getFragmentManager().findFragmentById(R.id.secondary_fragment);
 455        if (fragment != null && fragment instanceof ConversationFragment) {
 456            return (ConversationFragment) fragment;
 457        }
 458        return null;
 459    }
 460
 461    public static void startStopPending(Activity activity) {
 462        ConversationFragment fragment = findConversationFragment(activity);
 463        if (fragment != null) {
 464            fragment.messageListAdapter.startStopPending();
 465        }
 466    }
 467
 468    public static void downloadFile(Activity activity, Message message) {
 469        ConversationFragment fragment = findConversationFragment(activity);
 470        if (fragment != null) {
 471            fragment.startDownloadable(message);
 472        }
 473    }
 474
 475    public static void registerPendingMessage(Activity activity, Message message) {
 476        ConversationFragment fragment = findConversationFragment(activity);
 477        if (fragment != null) {
 478            fragment.pendingMessage.push(message);
 479        }
 480    }
 481
 482    public static void openPendingMessage(Activity activity) {
 483        ConversationFragment fragment = findConversationFragment(activity);
 484        if (fragment != null) {
 485            Message message = fragment.pendingMessage.pop();
 486            if (message != null) {
 487                fragment.messageListAdapter.openDownloadable(message);
 488            }
 489        }
 490    }
 491
 492    public static Conversation getConversation(Activity activity) {
 493        return getConversation(activity, R.id.secondary_fragment);
 494    }
 495
 496    private static Conversation getConversation(Activity activity, @IdRes int res) {
 497        final Fragment fragment = activity.getFragmentManager().findFragmentById(res);
 498        if (fragment != null && fragment instanceof ConversationFragment) {
 499            return ((ConversationFragment) fragment).getConversation();
 500        } else {
 501            return null;
 502        }
 503    }
 504
 505    public static ConversationFragment get(Activity activity) {
 506        FragmentManager fragmentManager = activity.getFragmentManager();
 507        Fragment fragment = fragmentManager.findFragmentById(R.id.main_fragment);
 508        if (fragment != null && fragment instanceof ConversationFragment) {
 509            return (ConversationFragment) fragment;
 510        } else {
 511            fragment = fragmentManager.findFragmentById(R.id.secondary_fragment);
 512            return fragment != null && fragment instanceof ConversationFragment ? (ConversationFragment) fragment : null;
 513        }
 514    }
 515
 516    public static Conversation getConversationReliable(Activity activity) {
 517        final Conversation conversation = getConversation(activity, R.id.secondary_fragment);
 518        if (conversation != null) {
 519            return conversation;
 520        }
 521        return getConversation(activity, R.id.main_fragment);
 522    }
 523
 524    private static boolean allGranted(int[] grantResults) {
 525        for (int grantResult : grantResults) {
 526            if (grantResult != PackageManager.PERMISSION_GRANTED) {
 527                return false;
 528            }
 529        }
 530        return true;
 531    }
 532
 533    private static boolean writeGranted(int[] grantResults, String[] permission) {
 534        for (int i = 0; i < grantResults.length; ++i) {
 535            if (Manifest.permission.WRITE_EXTERNAL_STORAGE.equals(permission[i])) {
 536                return grantResults[i] == PackageManager.PERMISSION_GRANTED;
 537            }
 538        }
 539        return false;
 540    }
 541
 542    private static String getFirstDenied(int[] grantResults, String[] permissions) {
 543        for (int i = 0; i < grantResults.length; ++i) {
 544            if (grantResults[i] == PackageManager.PERMISSION_DENIED) {
 545                return permissions[i];
 546            }
 547        }
 548        return null;
 549    }
 550
 551    private static boolean scrolledToBottom(AbsListView listView) {
 552        final int count = listView.getCount();
 553        if (count == 0) {
 554            return true;
 555        } else if (listView.getLastVisiblePosition() == count - 1) {
 556            final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
 557            return lastChild != null && lastChild.getBottom() <= listView.getHeight();
 558        } else {
 559            return false;
 560        }
 561    }
 562
 563    private void toggleScrollDownButton() {
 564        toggleScrollDownButton(binding.messagesView);
 565    }
 566
 567    private void toggleScrollDownButton(AbsListView listView) {
 568        if (conversation == null) {
 569            return;
 570        }
 571        if (scrolledToBottom(listView)) {
 572            lastMessageUuid = null;
 573            hideUnreadMessagesCount();
 574        } else {
 575            binding.scrollToBottomButton.setEnabled(true);
 576            binding.scrollToBottomButton.show();
 577            if (lastMessageUuid == null) {
 578                lastMessageUuid = conversation.getLatestMessage().getUuid();
 579            }
 580            if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) > 0) {
 581                binding.unreadCountCustomView.setVisibility(View.VISIBLE);
 582            }
 583        }
 584    }
 585
 586    private int getIndexOf(String uuid, List<Message> messages) {
 587        if (uuid == null) {
 588            return messages.size() - 1;
 589        }
 590        for (int i = 0; i < messages.size(); ++i) {
 591            if (uuid.equals(messages.get(i).getUuid())) {
 592                return i;
 593            } else {
 594                Message next = messages.get(i);
 595                while (next != null && next.wasMergedIntoPrevious()) {
 596                    if (uuid.equals(next.getUuid())) {
 597                        return i;
 598                    }
 599                    next = next.next();
 600                }
 601
 602            }
 603        }
 604        return -1;
 605    }
 606
 607    private ScrollState getScrollPosition() {
 608        final ListView listView = this.binding == null ? null : this.binding.messagesView;
 609        if (listView == null || listView.getCount() == 0 || listView.getLastVisiblePosition() == listView.getCount() - 1) {
 610            return null;
 611        } else {
 612            final int pos = listView.getFirstVisiblePosition();
 613            final View view = listView.getChildAt(0);
 614            if (view == null) {
 615                return null;
 616            } else {
 617                return new ScrollState(pos, view.getTop());
 618            }
 619        }
 620    }
 621
 622    private void setScrollPosition(ScrollState scrollPosition, String lastMessageUuid) {
 623        if (scrollPosition != null) {
 624
 625            this.lastMessageUuid = lastMessageUuid;
 626            if (lastMessageUuid != null) {
 627                binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
 628            }
 629            //TODO maybe this needs a 'post'
 630            this.binding.messagesView.setSelectionFromTop(scrollPosition.position, scrollPosition.offset);
 631            toggleScrollDownButton();
 632        }
 633    }
 634
 635    private void attachLocationToConversation(Conversation conversation, Uri uri) {
 636        if (conversation == null) {
 637            return;
 638        }
 639        activity.xmppConnectionService.attachLocationToConversation(conversation, uri, new UiCallback<Message>() {
 640
 641            @Override
 642            public void success(Message message) {
 643
 644            }
 645
 646            @Override
 647            public void error(int errorCode, Message object) {
 648                //TODO show possible pgp error
 649            }
 650
 651            @Override
 652            public void userInputRequried(PendingIntent pi, Message object) {
 653
 654            }
 655        });
 656    }
 657
 658    private void attachFileToConversation(Conversation conversation, Uri uri, String type) {
 659        if (conversation == null) {
 660            return;
 661        }
 662        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_file), Toast.LENGTH_LONG);
 663        prepareFileToast.show();
 664        activity.delegateUriPermissionsToService(uri);
 665        activity.xmppConnectionService.attachFileToConversation(conversation, uri, type, new UiInformableCallback<Message>() {
 666            @Override
 667            public void inform(final String text) {
 668                hidePrepareFileToast(prepareFileToast);
 669                runOnUiThread(() -> activity.replaceToast(text));
 670            }
 671
 672            @Override
 673            public void success(Message message) {
 674                runOnUiThread(() -> activity.hideToast());
 675                hidePrepareFileToast(prepareFileToast);
 676            }
 677
 678            @Override
 679            public void error(final int errorCode, Message message) {
 680                hidePrepareFileToast(prepareFileToast);
 681                runOnUiThread(() -> activity.replaceToast(getString(errorCode)));
 682
 683            }
 684
 685            @Override
 686            public void userInputRequried(PendingIntent pi, Message message) {
 687                hidePrepareFileToast(prepareFileToast);
 688            }
 689        });
 690    }
 691
 692    public void attachEditorContentToConversation(Uri uri) {
 693        mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), uri, Attachment.Type.FILE));
 694        toggleInputMethod();
 695    }
 696
 697    private void attachImageToConversation(Conversation conversation, Uri uri) {
 698        if (conversation == null) {
 699            return;
 700        }
 701        final Toast prepareFileToast = Toast.makeText(getActivity(), getText(R.string.preparing_image), Toast.LENGTH_LONG);
 702        prepareFileToast.show();
 703        activity.delegateUriPermissionsToService(uri);
 704        activity.xmppConnectionService.attachImageToConversation(conversation, uri,
 705                new UiCallback<Message>() {
 706
 707                    @Override
 708                    public void userInputRequried(PendingIntent pi, Message object) {
 709                        hidePrepareFileToast(prepareFileToast);
 710                    }
 711
 712                    @Override
 713                    public void success(Message message) {
 714                        hidePrepareFileToast(prepareFileToast);
 715                    }
 716
 717                    @Override
 718                    public void error(final int error, Message message) {
 719                        hidePrepareFileToast(prepareFileToast);
 720                        activity.runOnUiThread(() -> activity.replaceToast(getString(error)));
 721                    }
 722                });
 723    }
 724
 725    private void hidePrepareFileToast(final Toast prepareFileToast) {
 726        if (prepareFileToast != null && activity != null) {
 727            activity.runOnUiThread(prepareFileToast::cancel);
 728        }
 729    }
 730
 731    private void sendMessage() {
 732        if (mediaPreviewAdapter.hasAttachments()) {
 733            commitAttachments();
 734            return;
 735        }
 736        final Editable text = this.binding.textinput.getText();
 737        final String body = text == null ? "" : text.toString();
 738        final Conversation conversation = this.conversation;
 739        if (body.length() == 0 || conversation == null) {
 740            return;
 741        }
 742        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_TEXT)) {
 743            return;
 744        }
 745        final Message message;
 746        if (conversation.getCorrectingMessage() == null) {
 747            message = new Message(conversation, body, conversation.getNextEncryption());
 748            if (conversation.getMode() == Conversation.MODE_MULTI) {
 749                final Jid nextCounterpart = conversation.getNextCounterpart();
 750                if (nextCounterpart != null) {
 751                    message.setCounterpart(nextCounterpart);
 752                    message.setTrueCounterpart(conversation.getMucOptions().getTrueCounterpart(nextCounterpart));
 753                    message.setType(Message.TYPE_PRIVATE);
 754                }
 755            }
 756        } else {
 757            message = conversation.getCorrectingMessage();
 758            message.setBody(body);
 759            message.putEdited(message.getUuid(), message.getServerMsgId());
 760            message.setServerMsgId(null);
 761            message.setUuid(UUID.randomUUID().toString());
 762        }
 763        switch (conversation.getNextEncryption()) {
 764            case Message.ENCRYPTION_PGP:
 765                sendPgpMessage(message);
 766                break;
 767            default:
 768                sendMessage(message);
 769        }
 770    }
 771
 772    protected boolean trustKeysIfNeeded(int requestCode) {
 773        AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
 774        final List<Jid> targets = axolotlService.getCryptoTargets(conversation);
 775        boolean hasUnaccepted = !conversation.getAcceptedCryptoTargets().containsAll(targets);
 776        boolean hasUndecidedOwn = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided()).isEmpty();
 777        boolean hasUndecidedContacts = !axolotlService.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), targets).isEmpty();
 778        boolean hasPendingKeys = !axolotlService.findDevicesWithoutSession(conversation).isEmpty();
 779        boolean hasNoTrustedKeys = axolotlService.anyTargetHasNoTrustedKeys(targets);
 780        boolean downloadInProgress = axolotlService.hasPendingKeyFetches(targets);
 781        if (hasUndecidedOwn || hasUndecidedContacts || hasPendingKeys || hasNoTrustedKeys || hasUnaccepted || downloadInProgress) {
 782            axolotlService.createSessionsIfNeeded(conversation);
 783            Intent intent = new Intent(getActivity(), TrustKeysActivity.class);
 784            String[] contacts = new String[targets.size()];
 785            for (int i = 0; i < contacts.length; ++i) {
 786                contacts[i] = targets.get(i).toString();
 787            }
 788            intent.putExtra("contacts", contacts);
 789            intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().asBareJid().toString());
 790            intent.putExtra("conversation", conversation.getUuid());
 791            startActivityForResult(intent, requestCode);
 792            return true;
 793        } else {
 794            return false;
 795        }
 796    }
 797
 798    public void updateChatMsgHint() {
 799        final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 800        if (conversation.getCorrectingMessage() != null) {
 801            this.binding.textinput.setHint(R.string.send_corrected_message);
 802        } else if (multi && conversation.getNextCounterpart() != null) {
 803            this.binding.textinput.setHint(getString(
 804                    R.string.send_private_message_to,
 805                    conversation.getNextCounterpart().getResource()));
 806        } else if (multi && !conversation.getMucOptions().participating()) {
 807            this.binding.textinput.setHint(R.string.you_are_not_participating);
 808        } else {
 809            this.binding.textinput.setHint(UIHelper.getMessageHint(getActivity(), conversation));
 810            getActivity().invalidateOptionsMenu();
 811        }
 812    }
 813
 814    public void setupIme() {
 815        this.binding.textinput.refreshIme();
 816    }
 817
 818    private void handleActivityResult(ActivityResult activityResult) {
 819        if (activityResult.resultCode == Activity.RESULT_OK) {
 820            handlePositiveActivityResult(activityResult.requestCode, activityResult.data);
 821        } else {
 822            handleNegativeActivityResult(activityResult.requestCode);
 823        }
 824    }
 825
 826    private void handlePositiveActivityResult(int requestCode, final Intent data) {
 827        switch (requestCode) {
 828            case REQUEST_TRUST_KEYS_TEXT:
 829                sendMessage();
 830                break;
 831            case REQUEST_TRUST_KEYS_ATTACHMENTS:
 832                commitAttachments();
 833                break;
 834            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
 835                final List<Attachment> imageUris = Attachment.extractAttachments(getActivity(), data, Attachment.Type.IMAGE);
 836                mediaPreviewAdapter.addMediaPreviews(imageUris);
 837                toggleInputMethod();
 838                break;
 839            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 840                final Uri takePhotoUri = pendingTakePhotoUri.pop();
 841                if (takePhotoUri != null) {
 842                    mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), takePhotoUri, Attachment.Type.IMAGE));
 843                    toggleInputMethod();
 844                } else {
 845                    Log.d(Config.LOGTAG, "lost take photo uri. unable to to attach");
 846                }
 847                break;
 848            case ATTACHMENT_CHOICE_CHOOSE_FILE:
 849            case ATTACHMENT_CHOICE_RECORD_VIDEO:
 850            case ATTACHMENT_CHOICE_RECORD_VOICE:
 851                final Attachment.Type type = requestCode == ATTACHMENT_CHOICE_RECORD_VOICE ? Attachment.Type.RECORDING : Attachment.Type.FILE;
 852                final List<Attachment> fileUris = Attachment.extractAttachments(getActivity(), data, type);
 853                mediaPreviewAdapter.addMediaPreviews(fileUris);
 854                toggleInputMethod();
 855                break;
 856            case ATTACHMENT_CHOICE_LOCATION:
 857                double latitude = data.getDoubleExtra("latitude", 0);
 858                double longitude = data.getDoubleExtra("longitude", 0);
 859                Uri geo = Uri.parse("geo:" + String.valueOf(latitude) + "," + String.valueOf(longitude));
 860                mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), geo, Attachment.Type.LOCATION));
 861                toggleInputMethod();
 862                break;
 863            case REQUEST_INVITE_TO_CONVERSATION:
 864                XmppActivity.ConferenceInvite invite = XmppActivity.ConferenceInvite.parse(data);
 865                if (invite != null) {
 866                    if (invite.execute(activity)) {
 867                        activity.mToast = Toast.makeText(activity, R.string.creating_conference, Toast.LENGTH_LONG);
 868                        activity.mToast.show();
 869                    }
 870                }
 871                break;
 872        }
 873    }
 874
 875    private void commitAttachments() {
 876        if (!hasPermissions(REQUEST_COMMIT_ATTACHMENTS, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
 877            return;
 878        }
 879        if (conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL && trustKeysIfNeeded(REQUEST_TRUST_KEYS_ATTACHMENTS)) {
 880            return;
 881        }
 882        final List<Attachment> attachments = mediaPreviewAdapter.getAttachments();
 883        final PresenceSelector.OnPresenceSelected callback = () -> {
 884            for (Iterator<Attachment> i = attachments.iterator(); i.hasNext(); i.remove()) {
 885                final Attachment attachment = i.next();
 886                if (attachment.getType() == Attachment.Type.LOCATION) {
 887                    attachLocationToConversation(conversation, attachment.getUri());
 888                } else if (attachment.getType() == Attachment.Type.IMAGE) {
 889                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching image to conversations. CHOOSE_IMAGE");
 890                    attachImageToConversation(conversation, attachment.getUri());
 891                } else {
 892                    Log.d(Config.LOGTAG, "ConversationsActivity.commitAttachments() - attaching file to conversations. CHOOSE_FILE/RECORD_VOICE/RECORD_VIDEO");
 893                    attachFileToConversation(conversation, attachment.getUri(), attachment.getMime());
 894                }
 895            }
 896            mediaPreviewAdapter.notifyDataSetChanged();
 897            toggleInputMethod();
 898        };
 899        if (conversation == null || conversation.getMode() == Conversation.MODE_MULTI || FileBackend.allFilesUnderSize(getActivity(), attachments, getMaxHttpUploadSize(conversation))) {
 900            callback.onPresenceSelected();
 901        } else {
 902            activity.selectPresence(conversation, callback);
 903        }
 904    }
 905
 906    public void toggleInputMethod() {
 907        boolean hasAttachments = mediaPreviewAdapter.hasAttachments();
 908        binding.textinput.setVisibility(hasAttachments ? View.GONE : View.VISIBLE);
 909        binding.mediaPreview.setVisibility(hasAttachments ? View.VISIBLE : View.GONE);
 910        updateSendButton();
 911    }
 912
 913    private void handleNegativeActivityResult(int requestCode) {
 914        switch (requestCode) {
 915            case ATTACHMENT_CHOICE_TAKE_PHOTO:
 916                if (pendingTakePhotoUri.clear()) {
 917                    Log.d(Config.LOGTAG, "cleared pending photo uri after negative activity result");
 918                }
 919                break;
 920        }
 921    }
 922
 923    @Override
 924    public void onActivityResult(int requestCode, int resultCode, final Intent data) {
 925        super.onActivityResult(requestCode, resultCode, data);
 926        ActivityResult activityResult = ActivityResult.of(requestCode, resultCode, data);
 927        if (activity != null && activity.xmppConnectionService != null) {
 928            handleActivityResult(activityResult);
 929        } else {
 930            this.postponedActivityResult.push(activityResult);
 931        }
 932    }
 933
 934    public void unblockConversation(final Blockable conversation) {
 935        activity.xmppConnectionService.sendUnblockRequest(conversation);
 936    }
 937
 938    @Override
 939    public void onAttach(Activity activity) {
 940        super.onAttach(activity);
 941        Log.d(Config.LOGTAG, "ConversationFragment.onAttach()");
 942        if (activity instanceof ConversationsActivity) {
 943            this.activity = (ConversationsActivity) activity;
 944        } else {
 945            throw new IllegalStateException("Trying to attach fragment to activity that is not the ConversationsActivity");
 946        }
 947    }
 948
 949    @Override
 950    public void onDetach() {
 951        super.onDetach();
 952        this.activity = null; //TODO maybe not a good idea since some callbacks really need it
 953    }
 954
 955    @Override
 956    public void onCreate(Bundle savedInstanceState) {
 957        super.onCreate(savedInstanceState);
 958        setHasOptionsMenu(true);
 959    }
 960
 961    @Override
 962    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
 963        menuInflater.inflate(R.menu.fragment_conversation, menu);
 964        final MenuItem menuMucDetails = menu.findItem(R.id.action_muc_details);
 965        final MenuItem menuContactDetails = menu.findItem(R.id.action_contact_details);
 966        final MenuItem menuInviteContact = menu.findItem(R.id.action_invite);
 967        final MenuItem menuMute = menu.findItem(R.id.action_mute);
 968        final MenuItem menuUnmute = menu.findItem(R.id.action_unmute);
 969
 970
 971        if (conversation != null) {
 972            if (conversation.getMode() == Conversation.MODE_MULTI) {
 973                menuContactDetails.setVisible(false);
 974                menuInviteContact.setVisible(conversation.getMucOptions().canInvite());
 975            } else {
 976                menuContactDetails.setVisible(!this.conversation.withSelf());
 977                menuMucDetails.setVisible(false);
 978                final XmppConnectionService service = activity.xmppConnectionService;
 979                menuInviteContact.setVisible(service != null && service.findConferenceServer(conversation.getAccount()) != null);
 980            }
 981            if (conversation.isMuted()) {
 982                menuMute.setVisible(false);
 983            } else {
 984                menuUnmute.setVisible(false);
 985            }
 986            ConversationMenuConfigurator.configureAttachmentMenu(conversation, menu);
 987            ConversationMenuConfigurator.configureEncryptionMenu(conversation, menu);
 988        }
 989        super.onCreateOptionsMenu(menu, menuInflater);
 990    }
 991
 992    @Override
 993    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 994        this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversation, container, false);
 995        binding.getRoot().setOnClickListener(null); //TODO why the fuck did we do this?
 996
 997        binding.textinput.addTextChangedListener(new StylingHelper.MessageEditorStyler(binding.textinput));
 998
 999        binding.textinput.setOnEditorActionListener(mEditorActionListener);
1000        binding.textinput.setRichContentListener(new String[]{"image/*"}, mEditorContentListener);
1001
1002        binding.textSendButton.setOnClickListener(this.mSendButtonListener);
1003
1004        binding.scrollToBottomButton.setOnClickListener(this.mScrollButtonListener);
1005        binding.messagesView.setOnScrollListener(mOnScrollListener);
1006        binding.messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
1007        mediaPreviewAdapter = new MediaPreviewAdapter(this);
1008        binding.mediaPreview.setAdapter(mediaPreviewAdapter);
1009        messageListAdapter = new MessageAdapter((XmppActivity) getActivity(), this.messageList);
1010        messageListAdapter.setOnContactPictureClicked(this);
1011        messageListAdapter.setOnContactPictureLongClicked(this);
1012        messageListAdapter.setOnQuoteListener(this::quoteText);
1013        binding.messagesView.setAdapter(messageListAdapter);
1014
1015        registerForContextMenu(binding.messagesView);
1016
1017        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1018            this.binding.textinput.setCustomInsertionActionModeCallback(new EditMessageActionModeCallback(this.binding.textinput));
1019        }
1020
1021        return binding.getRoot();
1022    }
1023
1024    private void quoteText(String text) {
1025        if (binding.textinput.isEnabled()) {
1026            binding.textinput.insertAsQuote(text);
1027            binding.textinput.requestFocus();
1028            InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
1029            if (inputMethodManager != null) {
1030                inputMethodManager.showSoftInput(binding.textinput, InputMethodManager.SHOW_IMPLICIT);
1031            }
1032        }
1033    }
1034
1035    private void quoteMessage(Message message) {
1036        quoteText(MessageUtils.prepareQuote(message));
1037    }
1038
1039    @Override
1040    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1041        synchronized (this.messageList) {
1042            super.onCreateContextMenu(menu, v, menuInfo);
1043            AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1044            this.selectedMessage = this.messageList.get(acmi.position);
1045            populateContextMenu(menu);
1046        }
1047    }
1048
1049    private void populateContextMenu(ContextMenu menu) {
1050        final Message m = this.selectedMessage;
1051        final Transferable t = m.getTransferable();
1052        Message relevantForCorrection = m;
1053        while (relevantForCorrection.mergeable(relevantForCorrection.next())) {
1054            relevantForCorrection = relevantForCorrection.next();
1055        }
1056        if (m.getType() != Message.TYPE_STATUS) {
1057
1058            if (m.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || m.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
1059                return;
1060            }
1061
1062            final boolean deleted = m.isDeleted();
1063            final boolean encrypted = m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED
1064                    || m.getEncryption() == Message.ENCRYPTION_PGP;
1065            final boolean receiving = m.getStatus() == Message.STATUS_RECEIVED && (t instanceof JingleConnection || t instanceof HttpDownloadConnection);
1066            activity.getMenuInflater().inflate(R.menu.message_context, menu);
1067            menu.setHeaderTitle(R.string.message_options);
1068            MenuItem openWith = menu.findItem(R.id.open_with);
1069            MenuItem copyMessage = menu.findItem(R.id.copy_message);
1070            MenuItem copyLink = menu.findItem(R.id.copy_link);
1071            MenuItem quoteMessage = menu.findItem(R.id.quote_message);
1072            MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
1073            MenuItem correctMessage = menu.findItem(R.id.correct_message);
1074            MenuItem shareWith = menu.findItem(R.id.share_with);
1075            MenuItem sendAgain = menu.findItem(R.id.send_again);
1076            MenuItem copyUrl = menu.findItem(R.id.copy_url);
1077            MenuItem downloadFile = menu.findItem(R.id.download_file);
1078            MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
1079            MenuItem deleteFile = menu.findItem(R.id.delete_file);
1080            MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
1081            final boolean showError = m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null && !Message.ERROR_MESSAGE_CANCELLED.equals(m.getErrorMessage());
1082            if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
1083                copyMessage.setVisible(true);
1084                quoteMessage.setVisible(!showError && MessageUtils.prepareQuote(m).length() > 0);
1085                String body = m.getMergedBody().toString();
1086                if (ShareUtil.containsXmppUri(body)) {
1087                    copyLink.setTitle(R.string.copy_jabber_id);
1088                    copyLink.setVisible(true);
1089                } else if (Patterns.AUTOLINK_WEB_URL.matcher(body).find()) {
1090                    copyLink.setVisible(true);
1091                }
1092            }
1093            if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED && !deleted) {
1094                retryDecryption.setVisible(true);
1095            }
1096            if (!showError
1097                    && relevantForCorrection.getType() == Message.TYPE_TEXT
1098                    && !m.isGeoUri()
1099                    && relevantForCorrection.isLastCorrectableMessage()
1100                    && m.getConversation() instanceof Conversation
1101                    && (((Conversation) m.getConversation()).getMucOptions().nonanonymous() || m.getConversation().getMode() == Conversation.MODE_SINGLE)) {
1102                correctMessage.setVisible(true);
1103            }
1104            if ((m.isFileOrImage() && !deleted && !receiving) || (m.getType() == Message.TYPE_TEXT && !m.treatAsDownloadable())) {
1105                shareWith.setVisible(true);
1106            }
1107            if (m.getStatus() == Message.STATUS_SEND_FAILED) {
1108                sendAgain.setVisible(true);
1109            }
1110            if (m.hasFileOnRemoteHost()
1111                    || m.isGeoUri()
1112                    || m.treatAsDownloadable()
1113                    || t instanceof HttpDownloadConnection) {
1114                copyUrl.setVisible(true);
1115            }
1116            if (m.isFileOrImage() && deleted && m.hasFileOnRemoteHost()) {
1117                downloadFile.setVisible(true);
1118                downloadFile.setTitle(activity.getString(R.string.download_x_file, UIHelper.getFileDescriptionString(activity, m)));
1119            }
1120            final boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
1121                    || m.getStatus() == Message.STATUS_UNSEND
1122                    || m.getStatus() == Message.STATUS_OFFERED;
1123            final boolean cancelable = (t != null && !deleted) || waitingOfferedSending && m.needsUploading();
1124            if (cancelable) {
1125                cancelTransmission.setVisible(true);
1126            }
1127            if (m.isFileOrImage() && !deleted && !cancelable) {
1128                String path = m.getRelativeFilePath();
1129                if (path == null || !path.startsWith("/") || FileBackend.isInDirectoryThatShouldNotBeScanned(getActivity(), path)) {
1130                    deleteFile.setVisible(true);
1131                    deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
1132                }
1133            }
1134            if (showError) {
1135                showErrorMessage.setVisible(true);
1136            }
1137            if (m.isGeoUri() && GeoHelper.openInOsmAnd(getActivity(),m)) {
1138                openWith.setVisible(true);
1139            }
1140        }
1141    }
1142
1143    @Override
1144    public boolean onContextItemSelected(MenuItem item) {
1145        switch (item.getItemId()) {
1146            case R.id.share_with:
1147                ShareUtil.share(activity, selectedMessage);
1148                return true;
1149            case R.id.correct_message:
1150                correctMessage(selectedMessage);
1151                return true;
1152            case R.id.copy_message:
1153                ShareUtil.copyToClipboard(activity, selectedMessage);
1154                return true;
1155            case R.id.copy_link:
1156                ShareUtil.copyLinkToClipboard(activity, selectedMessage);
1157                return true;
1158            case R.id.quote_message:
1159                quoteMessage(selectedMessage);
1160                return true;
1161            case R.id.send_again:
1162                resendMessage(selectedMessage);
1163                return true;
1164            case R.id.copy_url:
1165                ShareUtil.copyUrlToClipboard(activity, selectedMessage);
1166                return true;
1167            case R.id.download_file:
1168                startDownloadable(selectedMessage);
1169                return true;
1170            case R.id.cancel_transmission:
1171                cancelTransmission(selectedMessage);
1172                return true;
1173            case R.id.retry_decryption:
1174                retryDecryption(selectedMessage);
1175                return true;
1176            case R.id.delete_file:
1177                deleteFile(selectedMessage);
1178                return true;
1179            case R.id.show_error_message:
1180                showErrorMessage(selectedMessage);
1181                return true;
1182            case R.id.open_with:
1183                openWith(selectedMessage);
1184                return true;
1185            default:
1186                return super.onContextItemSelected(item);
1187        }
1188    }
1189
1190    @Override
1191    public boolean onOptionsItemSelected(final MenuItem item) {
1192        if (MenuDoubleTabUtil.shouldIgnoreTap()) {
1193            return false;
1194        } else if (conversation == null) {
1195            return super.onOptionsItemSelected(item);
1196        }
1197        switch (item.getItemId()) {
1198            case R.id.encryption_choice_axolotl:
1199            case R.id.encryption_choice_pgp:
1200            case R.id.encryption_choice_none:
1201                handleEncryptionSelection(item);
1202                break;
1203            case R.id.attach_choose_picture:
1204            case R.id.attach_take_picture:
1205            case R.id.attach_record_video:
1206            case R.id.attach_choose_file:
1207            case R.id.attach_record_voice:
1208            case R.id.attach_location:
1209                handleAttachmentSelection(item);
1210                break;
1211            case R.id.action_archive:
1212                activity.xmppConnectionService.archiveConversation(conversation);
1213                break;
1214            case R.id.action_contact_details:
1215                activity.switchToContactDetails(conversation.getContact());
1216                break;
1217            case R.id.action_muc_details:
1218                Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
1219                intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
1220                intent.putExtra("uuid", conversation.getUuid());
1221                startActivity(intent);
1222                break;
1223            case R.id.action_invite:
1224                startActivityForResult(ChooseContactActivity.create(activity, conversation), REQUEST_INVITE_TO_CONVERSATION);
1225                break;
1226            case R.id.action_clear_history:
1227                clearHistoryDialog(conversation);
1228                break;
1229            case R.id.action_mute:
1230                muteConversationDialog(conversation);
1231                break;
1232            case R.id.action_unmute:
1233                unmuteConversation(conversation);
1234                break;
1235            case R.id.action_block:
1236            case R.id.action_unblock:
1237                final Activity activity = getActivity();
1238                if (activity instanceof XmppActivity) {
1239                    BlockContactDialog.show((XmppActivity) activity, conversation);
1240                }
1241                break;
1242            default:
1243                break;
1244        }
1245        return super.onOptionsItemSelected(item);
1246    }
1247
1248    private void handleAttachmentSelection(MenuItem item) {
1249        switch (item.getItemId()) {
1250            case R.id.attach_choose_picture:
1251                attachFile(ATTACHMENT_CHOICE_CHOOSE_IMAGE);
1252                break;
1253            case R.id.attach_take_picture:
1254                attachFile(ATTACHMENT_CHOICE_TAKE_PHOTO);
1255                break;
1256            case R.id.attach_record_video:
1257                attachFile(ATTACHMENT_CHOICE_RECORD_VIDEO);
1258                break;
1259            case R.id.attach_choose_file:
1260                attachFile(ATTACHMENT_CHOICE_CHOOSE_FILE);
1261                break;
1262            case R.id.attach_record_voice:
1263                attachFile(ATTACHMENT_CHOICE_RECORD_VOICE);
1264                break;
1265            case R.id.attach_location:
1266                attachFile(ATTACHMENT_CHOICE_LOCATION);
1267                break;
1268        }
1269    }
1270
1271    private void handleEncryptionSelection(MenuItem item) {
1272        if (conversation == null) {
1273            return;
1274        }
1275        switch (item.getItemId()) {
1276            case R.id.encryption_choice_none:
1277                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1278                item.setChecked(true);
1279                break;
1280            case R.id.encryption_choice_pgp:
1281                if (activity.hasPgp()) {
1282                    if (conversation.getAccount().getPgpSignature() != null) {
1283                        conversation.setNextEncryption(Message.ENCRYPTION_PGP);
1284                        item.setChecked(true);
1285                    } else {
1286                        activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
1287                    }
1288                } else {
1289                    activity.showInstallPgpDialog();
1290                }
1291                break;
1292            case R.id.encryption_choice_axolotl:
1293                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(conversation.getAccount())
1294                        + "Enabled axolotl for Contact " + conversation.getContact().getJid());
1295                conversation.setNextEncryption(Message.ENCRYPTION_AXOLOTL);
1296                item.setChecked(true);
1297                break;
1298            default:
1299                conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1300                break;
1301        }
1302        activity.xmppConnectionService.updateConversation(conversation);
1303        updateChatMsgHint();
1304        getActivity().invalidateOptionsMenu();
1305        activity.refreshUi();
1306    }
1307
1308    public void attachFile(final int attachmentChoice) {
1309        if (attachmentChoice == ATTACHMENT_CHOICE_RECORD_VOICE) {
1310            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)) {
1311                return;
1312            }
1313        } else if (attachmentChoice == ATTACHMENT_CHOICE_TAKE_PHOTO || attachmentChoice == ATTACHMENT_CHOICE_RECORD_VIDEO) {
1314            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA)) {
1315                return;
1316            }
1317        } else if (attachmentChoice != ATTACHMENT_CHOICE_LOCATION) {
1318            if (!hasPermissions(attachmentChoice, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1319                return;
1320            }
1321        }
1322        try {
1323            activity.getPreferences().edit()
1324                    .putString(RECENTLY_USED_QUICK_ACTION, SendButtonAction.of(attachmentChoice).toString())
1325                    .apply();
1326        } catch (IllegalArgumentException e) {
1327            //just do not save
1328        }
1329        final int encryption = conversation.getNextEncryption();
1330        final int mode = conversation.getMode();
1331        if (encryption == Message.ENCRYPTION_PGP) {
1332            if (activity.hasPgp()) {
1333                if (mode == Conversation.MODE_SINGLE && conversation.getContact().getPgpKeyId() != 0) {
1334                    activity.xmppConnectionService.getPgpEngine().hasKey(
1335                            conversation.getContact(),
1336                            new UiCallback<Contact>() {
1337
1338                                @Override
1339                                public void userInputRequried(PendingIntent pi, Contact contact) {
1340                                    startPendingIntent(pi, attachmentChoice);
1341                                }
1342
1343                                @Override
1344                                public void success(Contact contact) {
1345                                    selectPresenceToAttachFile(attachmentChoice);
1346                                }
1347
1348                                @Override
1349                                public void error(int error, Contact contact) {
1350                                    activity.replaceToast(getString(error));
1351                                }
1352                            });
1353                } else if (mode == Conversation.MODE_MULTI && conversation.getMucOptions().pgpKeysInUse()) {
1354                    if (!conversation.getMucOptions().everybodyHasKeys()) {
1355                        Toast warning = Toast.makeText(getActivity(), R.string.missing_public_keys, Toast.LENGTH_LONG);
1356                        warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1357                        warning.show();
1358                    }
1359                    selectPresenceToAttachFile(attachmentChoice);
1360                } else {
1361                    showNoPGPKeyDialog(false, (dialog, which) -> {
1362                        conversation.setNextEncryption(Message.ENCRYPTION_NONE);
1363                        activity.xmppConnectionService.updateConversation(conversation);
1364                        selectPresenceToAttachFile(attachmentChoice);
1365                    });
1366                }
1367            } else {
1368                activity.showInstallPgpDialog();
1369            }
1370        } else {
1371            selectPresenceToAttachFile(attachmentChoice);
1372        }
1373    }
1374
1375    @Override
1376    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
1377        if (grantResults.length > 0) {
1378            if (allGranted(grantResults)) {
1379                switch (requestCode) {
1380                    case REQUEST_START_DOWNLOAD:
1381                        if (this.mPendingDownloadableMessage != null) {
1382                            startDownloadable(this.mPendingDownloadableMessage);
1383                        }
1384                        break;
1385                    case REQUEST_ADD_EDITOR_CONTENT:
1386                        if (this.mPendingEditorContent != null) {
1387                            attachEditorContentToConversation(this.mPendingEditorContent);
1388                        }
1389                        break;
1390                    case REQUEST_COMMIT_ATTACHMENTS:
1391                        commitAttachments();
1392                        break;
1393                    default:
1394                        attachFile(requestCode);
1395                        break;
1396                }
1397            } else {
1398                @StringRes int res;
1399                String firstDenied = getFirstDenied(grantResults, permissions);
1400                if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
1401                    res = R.string.no_microphone_permission;
1402                } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
1403                    res = R.string.no_camera_permission;
1404                } else {
1405                    res = R.string.no_storage_permission;
1406                }
1407                Toast.makeText(getActivity(), res, Toast.LENGTH_SHORT).show();
1408            }
1409        }
1410        if (writeGranted(grantResults, permissions)) {
1411            if (activity != null && activity.xmppConnectionService != null) {
1412                activity.xmppConnectionService.restartFileObserver();
1413            }
1414            refresh();
1415        }
1416    }
1417
1418    public void startDownloadable(Message message) {
1419        if (!hasPermissions(REQUEST_START_DOWNLOAD, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1420            this.mPendingDownloadableMessage = message;
1421            return;
1422        }
1423        Transferable transferable = message.getTransferable();
1424        if (transferable != null) {
1425            if (transferable instanceof TransferablePlaceholder && message.hasFileOnRemoteHost()) {
1426                createNewConnection(message);
1427                return;
1428            }
1429            if (!transferable.start()) {
1430                Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
1431                Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1432            }
1433        } else if (message.treatAsDownloadable() || message.hasFileOnRemoteHost()) {
1434            createNewConnection(message);
1435        }
1436    }
1437
1438    private void createNewConnection(final Message message) {
1439        if (!activity.xmppConnectionService.getHttpConnectionManager().checkConnection(message)) {
1440            Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
1441            return;
1442        }
1443        activity.xmppConnectionService.getHttpConnectionManager().createNewDownloadConnection(message, true);
1444    }
1445
1446    @SuppressLint("InflateParams")
1447    protected void clearHistoryDialog(final Conversation conversation) {
1448        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1449        builder.setTitle(getString(R.string.clear_conversation_history));
1450        final View dialogView = getActivity().getLayoutInflater().inflate(R.layout.dialog_clear_history, null);
1451        final CheckBox endConversationCheckBox = dialogView.findViewById(R.id.end_conversation_checkbox);
1452        builder.setView(dialogView);
1453        builder.setNegativeButton(getString(R.string.cancel), null);
1454        builder.setPositiveButton(getString(R.string.confirm), (dialog, which) -> {
1455            this.activity.xmppConnectionService.clearConversationHistory(conversation);
1456            if (endConversationCheckBox.isChecked()) {
1457                this.activity.xmppConnectionService.archiveConversation(conversation);
1458                this.activity.onConversationArchived(conversation);
1459            } else {
1460                activity.onConversationsListItemUpdated();
1461                refresh();
1462            }
1463        });
1464        builder.create().show();
1465    }
1466
1467    protected void muteConversationDialog(final Conversation conversation) {
1468        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1469        builder.setTitle(R.string.disable_notifications);
1470        final int[] durations = getResources().getIntArray(R.array.mute_options_durations);
1471        final CharSequence[] labels = new CharSequence[durations.length];
1472        for (int i = 0; i < durations.length; ++i) {
1473            if (durations[i] == -1) {
1474                labels[i] = getString(R.string.until_further_notice);
1475            } else {
1476                labels[i] = TimeframeUtils.resolve(activity, 1000L * durations[i]);
1477            }
1478        }
1479        builder.setItems(labels, (dialog, which) -> {
1480            final long till;
1481            if (durations[which] == -1) {
1482                till = Long.MAX_VALUE;
1483            } else {
1484                till = System.currentTimeMillis() + (durations[which] * 1000);
1485            }
1486            conversation.setMutedTill(till);
1487            activity.xmppConnectionService.updateConversation(conversation);
1488            activity.onConversationsListItemUpdated();
1489            refresh();
1490            getActivity().invalidateOptionsMenu();
1491        });
1492        builder.create().show();
1493    }
1494
1495    private boolean hasPermissions(int requestCode, String... permissions) {
1496        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1497            final List<String> missingPermissions = new ArrayList<>();
1498            for (String permission : permissions) {
1499                if (Config.ONLY_INTERNAL_STORAGE && permission.equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
1500                    continue;
1501                }
1502                if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
1503                    missingPermissions.add(permission);
1504                }
1505            }
1506            if (missingPermissions.size() == 0) {
1507                return true;
1508            } else {
1509                requestPermissions(missingPermissions.toArray(new String[missingPermissions.size()]), requestCode);
1510                return false;
1511            }
1512        } else {
1513            return true;
1514        }
1515    }
1516
1517    public void unmuteConversation(final Conversation conversation) {
1518        conversation.setMutedTill(0);
1519        this.activity.xmppConnectionService.updateConversation(conversation);
1520        this.activity.onConversationsListItemUpdated();
1521        refresh();
1522        getActivity().invalidateOptionsMenu();
1523    }
1524
1525    protected void selectPresenceToAttachFile(final int attachmentChoice) {
1526        final Account account = conversation.getAccount();
1527        final PresenceSelector.OnPresenceSelected callback = () -> {
1528            Intent intent = new Intent();
1529            boolean chooser = false;
1530            switch (attachmentChoice) {
1531                case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
1532                    intent.setAction(Intent.ACTION_GET_CONTENT);
1533                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1534                        intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1535                    }
1536                    intent.setType("image/*");
1537                    chooser = true;
1538                    break;
1539                case ATTACHMENT_CHOICE_RECORD_VIDEO:
1540                    intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
1541                    break;
1542                case ATTACHMENT_CHOICE_TAKE_PHOTO:
1543                    final Uri uri = activity.xmppConnectionService.getFileBackend().getTakePhotoUri();
1544                    pendingTakePhotoUri.push(uri);
1545                    intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
1546                    intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
1547                    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
1548                    intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
1549                    break;
1550                case ATTACHMENT_CHOICE_CHOOSE_FILE:
1551                    chooser = true;
1552                    intent.setType("*/*");
1553                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
1554                        intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
1555                    }
1556                    intent.addCategory(Intent.CATEGORY_OPENABLE);
1557                    intent.setAction(Intent.ACTION_GET_CONTENT);
1558                    break;
1559                case ATTACHMENT_CHOICE_RECORD_VOICE:
1560                    intent = new Intent(getActivity(), RecordingActivity.class);
1561                    break;
1562                case ATTACHMENT_CHOICE_LOCATION:
1563                    intent = GeoHelper.getFetchIntent(activity);
1564                    break;
1565            }
1566            if (intent.resolveActivity(getActivity().getPackageManager()) != null) {
1567                if (chooser) {
1568                    startActivityForResult(
1569                            Intent.createChooser(intent, getString(R.string.perform_action_with)),
1570                            attachmentChoice);
1571                } else {
1572                    startActivityForResult(intent, attachmentChoice);
1573                }
1574            }
1575        };
1576        if (account.httpUploadAvailable() || attachmentChoice == ATTACHMENT_CHOICE_LOCATION) {
1577            conversation.setNextCounterpart(null);
1578            callback.onPresenceSelected();
1579        } else {
1580            activity.selectPresence(conversation, callback);
1581        }
1582    }
1583
1584    @Override
1585    public void onResume() {
1586        super.onResume();
1587        binding.messagesView.post(this::fireReadEvent);
1588    }
1589
1590    private void fireReadEvent() {
1591        if (activity != null && this.conversation != null) {
1592            String uuid = getLastVisibleMessageUuid();
1593            if (uuid != null) {
1594                activity.onConversationRead(this.conversation, uuid);
1595            }
1596        }
1597    }
1598
1599    private String getLastVisibleMessageUuid() {
1600        if (binding == null) {
1601            return null;
1602        }
1603        synchronized (this.messageList) {
1604            int pos = binding.messagesView.getLastVisiblePosition();
1605            if (pos >= 0) {
1606                Message message = null;
1607                for (int i = pos; i >= 0; --i) {
1608                    try {
1609                        message = (Message) binding.messagesView.getItemAtPosition(i);
1610                    } catch (IndexOutOfBoundsException e) {
1611                        //should not happen if we synchronize properly. however if that fails we just gonna try item -1
1612                        continue;
1613                    }
1614                    if (message.getType() != Message.TYPE_STATUS) {
1615                        break;
1616                    }
1617                }
1618                if (message != null) {
1619                    while (message.next() != null && message.next().wasMergedIntoPrevious()) {
1620                        message = message.next();
1621                    }
1622                    return message.getUuid();
1623                }
1624            }
1625        }
1626        return null;
1627    }
1628
1629    private void openWith(final Message message) {
1630        if (message.isGeoUri()) {
1631            GeoHelper.view(getActivity(),message);
1632        }
1633    }
1634
1635    private void showErrorMessage(final Message message) {
1636        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1637        builder.setTitle(R.string.error_message);
1638        builder.setMessage(message.getErrorMessage());
1639        builder.setNegativeButton(R.string.copy_to_clipboard, (dialog, which) -> {
1640            activity.copyTextToClipboard(message.getErrorMessage(),R.string.error_message);
1641            Toast.makeText(activity,R.string.error_message_copied_to_clipboard, Toast.LENGTH_SHORT).show();
1642        });
1643        builder.setPositiveButton(R.string.confirm, null);
1644        builder.create().show();
1645    }
1646
1647
1648    private void deleteFile(final Message message) {
1649        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1650        builder.setNegativeButton(R.string.cancel, null);
1651        builder.setTitle(R.string.delete_file_dialog);
1652        builder.setMessage(R.string.delete_file_dialog_msg);
1653        builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
1654            if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
1655                message.setDeleted(true);
1656                activity.xmppConnectionService.updateMessage(message, false);
1657                activity.onConversationsListItemUpdated();
1658                refresh();
1659            }
1660        });
1661        builder.create().show();
1662
1663    }
1664
1665    private void resendMessage(final Message message) {
1666        if (message.isFileOrImage()) {
1667            if (!(message.getConversation() instanceof Conversation)) {
1668                return;
1669            }
1670            final Conversation conversation = (Conversation) message.getConversation();
1671            DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
1672            if (file.exists()) {
1673                final XmppConnection xmppConnection = conversation.getAccount().getXmppConnection();
1674                if (!message.hasFileOnRemoteHost()
1675                        && xmppConnection != null
1676                        && conversation.getMode() == Conversational.MODE_SINGLE
1677                        && !xmppConnection.getFeatures().httpUpload(message.getFileParams().size)) {
1678                    activity.selectPresence(conversation, () -> {
1679                        message.setCounterpart(conversation.getNextCounterpart());
1680                        activity.xmppConnectionService.resendFailedMessages(message);
1681                        new Handler().post(() -> {
1682                            int size = messageList.size();
1683                            this.binding.messagesView.setSelection(size - 1);
1684                        });
1685                    });
1686                    return;
1687                }
1688            } else {
1689                Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
1690                //TODO check if we have storage permission
1691                message.setDeleted(true);
1692                activity.xmppConnectionService.updateMessage(message, false);
1693                activity.onConversationsListItemUpdated();
1694                refresh();
1695                return;
1696            }
1697        }
1698        activity.xmppConnectionService.resendFailedMessages(message);
1699        new Handler().post(() -> {
1700            int size = messageList.size();
1701            this.binding.messagesView.setSelection(size - 1);
1702        });
1703    }
1704
1705    private void cancelTransmission(Message message) {
1706        Transferable transferable = message.getTransferable();
1707        if (transferable != null) {
1708            transferable.cancel();
1709        } else if (message.getStatus() != Message.STATUS_RECEIVED) {
1710            activity.xmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, Message.ERROR_MESSAGE_CANCELLED);
1711        }
1712    }
1713
1714    private void retryDecryption(Message message) {
1715        message.setEncryption(Message.ENCRYPTION_PGP);
1716        activity.onConversationsListItemUpdated();
1717        refresh();
1718        conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
1719    }
1720
1721    public void privateMessageWith(final Jid counterpart) {
1722        if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1723            activity.xmppConnectionService.sendChatState(conversation);
1724        }
1725        this.binding.textinput.setText("");
1726        this.conversation.setNextCounterpart(counterpart);
1727        updateChatMsgHint();
1728        updateSendButton();
1729        updateEditablity();
1730    }
1731
1732    private void correctMessage(Message message) {
1733        while (message.mergeable(message.next())) {
1734            message = message.next();
1735        }
1736        this.conversation.setCorrectingMessage(message);
1737        final Editable editable = binding.textinput.getText();
1738        this.conversation.setDraftMessage(editable.toString());
1739        this.binding.textinput.setText("");
1740        this.binding.textinput.append(message.getBody());
1741
1742    }
1743
1744    private void highlightInConference(String nick) {
1745        final Editable editable = this.binding.textinput.getText();
1746        String oldString = editable.toString().trim();
1747        final int pos = this.binding.textinput.getSelectionStart();
1748        if (oldString.isEmpty() || pos == 0) {
1749            editable.insert(0, nick + ": ");
1750        } else {
1751            final char before = editable.charAt(pos - 1);
1752            final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
1753            if (before == '\n') {
1754                editable.insert(pos, nick + ": ");
1755            } else {
1756                if (pos > 2 && editable.subSequence(pos - 2, pos).toString().equals(": ")) {
1757                    if (NickValidityChecker.check(conversation, Arrays.asList(editable.subSequence(0, pos - 2).toString().split(", ")))) {
1758                        editable.insert(pos - 2, ", " + nick);
1759                        return;
1760                    }
1761                }
1762                editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
1763                if (Character.isWhitespace(after)) {
1764                    this.binding.textinput.setSelection(this.binding.textinput.getSelectionStart() + 1);
1765                }
1766            }
1767        }
1768    }
1769
1770    @Override
1771    public void startActivityForResult(Intent intent, int requestCode) {
1772        final Activity activity = getActivity();
1773        if (activity instanceof ConversationsActivity) {
1774            ((ConversationsActivity) activity).clearPendingViewIntent();
1775        }
1776        super.startActivityForResult(intent, requestCode);
1777    }
1778
1779    @Override
1780    public void onSaveInstanceState(Bundle outState) {
1781        super.onSaveInstanceState(outState);
1782        if (conversation != null) {
1783            outState.putString(STATE_CONVERSATION_UUID, conversation.getUuid());
1784            outState.putString(STATE_LAST_MESSAGE_UUID, lastMessageUuid);
1785            final Uri uri = pendingTakePhotoUri.peek();
1786            if (uri != null) {
1787                outState.putString(STATE_PHOTO_URI, uri.toString());
1788            }
1789            final ScrollState scrollState = getScrollPosition();
1790            if (scrollState != null) {
1791                outState.putParcelable(STATE_SCROLL_POSITION, scrollState);
1792            }
1793            final ArrayList<Attachment> attachments = mediaPreviewAdapter == null ? new ArrayList<>() : mediaPreviewAdapter.getAttachments();
1794            if (attachments.size() > 0) {
1795                outState.putParcelableArrayList(STATE_MEDIA_PREVIEWS, attachments);
1796            }
1797        }
1798    }
1799
1800    @Override
1801    public void onActivityCreated(Bundle savedInstanceState) {
1802        super.onActivityCreated(savedInstanceState);
1803        if (savedInstanceState == null) {
1804            return;
1805        }
1806        String uuid = savedInstanceState.getString(STATE_CONVERSATION_UUID);
1807        ArrayList<Attachment> attachments = savedInstanceState.getParcelableArrayList(STATE_MEDIA_PREVIEWS);
1808        pendingLastMessageUuid.push(savedInstanceState.getString(STATE_LAST_MESSAGE_UUID, null));
1809        if (uuid != null) {
1810            QuickLoader.set(uuid);
1811            this.pendingConversationsUuid.push(uuid);
1812            if (attachments != null && attachments.size() > 0) {
1813                this.pendingMediaPreviews.push(attachments);
1814            }
1815            String takePhotoUri = savedInstanceState.getString(STATE_PHOTO_URI);
1816            if (takePhotoUri != null) {
1817                pendingTakePhotoUri.push(Uri.parse(takePhotoUri));
1818            }
1819            pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
1820        }
1821    }
1822
1823    @Override
1824    public void onStart() {
1825        super.onStart();
1826        if (this.reInitRequiredOnStart && this.conversation != null) {
1827            final Bundle extras = pendingExtras.pop();
1828            reInit(this.conversation, extras != null);
1829            if (extras != null) {
1830                processExtras(extras);
1831            }
1832        } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
1833            final String uuid = pendingConversationsUuid.pop();
1834            Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
1835            if (uuid != null) {
1836                findAndReInitByUuidOrArchive(uuid);
1837            }
1838        }
1839    }
1840
1841    @Override
1842    public void onStop() {
1843        super.onStop();
1844        final Activity activity = getActivity();
1845        messageListAdapter.unregisterListenerInAudioPlayer();
1846        if (activity == null || !activity.isChangingConfigurations()) {
1847            hideSoftKeyboard(activity);
1848            messageListAdapter.stopAudioPlayer();
1849        }
1850        if (this.conversation != null) {
1851            final String msg = this.binding.textinput.getText().toString();
1852            storeNextMessage(msg);
1853            updateChatState(this.conversation, msg);
1854            this.activity.xmppConnectionService.getNotificationService().setOpenConversation(null);
1855        }
1856        this.reInitRequiredOnStart = true;
1857    }
1858
1859    private void updateChatState(final Conversation conversation, final String msg) {
1860        ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
1861        Account.State status = conversation.getAccount().getStatus();
1862        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
1863            activity.xmppConnectionService.sendChatState(conversation);
1864        }
1865    }
1866
1867    private void saveMessageDraftStopAudioPlayer() {
1868        final Conversation previousConversation = this.conversation;
1869        if (this.activity == null || this.binding == null || previousConversation == null) {
1870            return;
1871        }
1872        Log.d(Config.LOGTAG, "ConversationFragment.saveMessageDraftStopAudioPlayer()");
1873        final String msg = this.binding.textinput.getText().toString();
1874        storeNextMessage(msg);
1875        updateChatState(this.conversation, msg);
1876        messageListAdapter.stopAudioPlayer();
1877        mediaPreviewAdapter.clearPreviews();
1878        toggleInputMethod();
1879    }
1880
1881    public void reInit(Conversation conversation, Bundle extras) {
1882        QuickLoader.set(conversation.getUuid());
1883        this.saveMessageDraftStopAudioPlayer();
1884        this.clearPending();
1885        if (this.reInit(conversation, extras != null)) {
1886            if (extras != null) {
1887                processExtras(extras);
1888            }
1889            this.reInitRequiredOnStart = false;
1890        } else {
1891            this.reInitRequiredOnStart = true;
1892            pendingExtras.push(extras);
1893        }
1894        resetUnreadMessagesCount();
1895    }
1896
1897    private void reInit(Conversation conversation) {
1898        reInit(conversation, false);
1899    }
1900
1901    private boolean reInit(final Conversation conversation, final boolean hasExtras) {
1902        if (conversation == null) {
1903            return false;
1904        }
1905        this.conversation = conversation;
1906        //once we set the conversation all is good and it will automatically do the right thing in onStart()
1907        if (this.activity == null || this.binding == null) {
1908            return false;
1909        }
1910
1911        if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
1912            activity.onConversationArchived(this.conversation);
1913            return false;
1914        }
1915
1916        stopScrolling();
1917        Log.d(Config.LOGTAG, "reInit(hasExtras=" + Boolean.toString(hasExtras) + ")");
1918
1919        if (this.conversation.isRead() && hasExtras) {
1920            Log.d(Config.LOGTAG, "trimming conversation");
1921            this.conversation.trim();
1922        }
1923
1924        setupIme();
1925
1926        final boolean scrolledToBottomAndNoPending = this.scrolledToBottom() && pendingScrollState.peek() == null;
1927
1928        this.binding.textSendButton.setContentDescription(activity.getString(R.string.send_message_to_x, conversation.getName()));
1929        this.binding.textinput.setKeyboardListener(null);
1930        this.binding.textinput.setText("");
1931        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
1932        if (participating) {
1933            this.binding.textinput.append(this.conversation.getNextMessage());
1934        }
1935        this.binding.textinput.setKeyboardListener(this);
1936        messageListAdapter.updatePreferences();
1937        refresh(false);
1938        this.conversation.messagesLoaded.set(true);
1939        Log.d(Config.LOGTAG, "scrolledToBottomAndNoPending=" + Boolean.toString(scrolledToBottomAndNoPending));
1940
1941        if (hasExtras || scrolledToBottomAndNoPending) {
1942            resetUnreadMessagesCount();
1943            synchronized (this.messageList) {
1944                Log.d(Config.LOGTAG, "jump to first unread message");
1945                final Message first = conversation.getFirstUnreadMessage();
1946                final int bottom = Math.max(0, this.messageList.size() - 1);
1947                final int pos;
1948                final boolean jumpToBottom;
1949                if (first == null) {
1950                    pos = bottom;
1951                    jumpToBottom = true;
1952                } else {
1953                    int i = getIndexOf(first.getUuid(), this.messageList);
1954                    pos = i < 0 ? bottom : i;
1955                    jumpToBottom = false;
1956                }
1957                setSelection(pos, jumpToBottom);
1958            }
1959        }
1960
1961
1962        this.binding.messagesView.post(this::fireReadEvent);
1963        //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
1964        activity.xmppConnectionService.getNotificationService().setOpenConversation(this.conversation);
1965        return true;
1966    }
1967
1968    private void resetUnreadMessagesCount() {
1969        lastMessageUuid = null;
1970        hideUnreadMessagesCount();
1971    }
1972
1973    private void hideUnreadMessagesCount() {
1974        if (this.binding == null) {
1975            return;
1976        }
1977        this.binding.scrollToBottomButton.setEnabled(false);
1978        this.binding.scrollToBottomButton.hide();
1979        this.binding.unreadCountCustomView.setVisibility(View.GONE);
1980    }
1981
1982    private void setSelection(int pos, boolean jumpToBottom) {
1983        ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom);
1984        this.binding.messagesView.post(() -> ListViewUtils.setSelection(this.binding.messagesView, pos, jumpToBottom));
1985        this.binding.messagesView.post(this::fireReadEvent);
1986    }
1987
1988
1989    private boolean scrolledToBottom() {
1990        return this.binding != null && scrolledToBottom(this.binding.messagesView);
1991    }
1992
1993    private void processExtras(Bundle extras) {
1994        final String downloadUuid = extras.getString(ConversationsActivity.EXTRA_DOWNLOAD_UUID);
1995        final String text = extras.getString(Intent.EXTRA_TEXT);
1996        final String nick = extras.getString(ConversationsActivity.EXTRA_NICK);
1997        final boolean asQuote = extras.getBoolean(ConversationsActivity.EXTRA_AS_QUOTE);
1998        final boolean pm = extras.getBoolean(ConversationsActivity.EXTRA_IS_PRIVATE_MESSAGE, false);
1999        final boolean doNotAppend = extras.getBoolean(ConversationsActivity.EXTRA_DO_NOT_APPEND, false);
2000        final List<Uri> uris = extractUris(extras);
2001        if (uris != null && uris.size() > 0) {
2002            final List<Uri> cleanedUris = cleanUris(new ArrayList<>(uris));
2003            mediaPreviewAdapter.addMediaPreviews(Attachment.of(getActivity(), cleanedUris));
2004            toggleInputMethod();
2005            return;
2006        }
2007        if (nick != null) {
2008            if (pm) {
2009                Jid jid = conversation.getJid();
2010                try {
2011                    Jid next = Jid.of(jid.getLocal(), jid.getDomain(), nick);
2012                    privateMessageWith(next);
2013                } catch (final IllegalArgumentException ignored) {
2014                    //do nothing
2015                }
2016            } else {
2017                final MucOptions mucOptions = conversation.getMucOptions();
2018                if (mucOptions.participating() || conversation.getNextCounterpart() != null) {
2019                    highlightInConference(nick);
2020                }
2021            }
2022        } else {
2023            if (text != null && asQuote) {
2024                quoteText(text);
2025            } else {
2026                appendText(text, doNotAppend);
2027            }
2028        }
2029        final Message message = downloadUuid == null ? null : conversation.findMessageWithFileAndUuid(downloadUuid);
2030        if (message != null) {
2031            startDownloadable(message);
2032        }
2033    }
2034
2035    private List<Uri> extractUris(Bundle extras) {
2036        final List<Uri> uris = extras.getParcelableArrayList(Intent.EXTRA_STREAM);
2037        if (uris != null) {
2038            return uris;
2039        }
2040        final Uri uri = extras.getParcelable(Intent.EXTRA_STREAM);
2041        if (uri != null) {
2042            return Collections.singletonList(uri);
2043        } else {
2044            return null;
2045        }
2046    }
2047
2048    private List<Uri> cleanUris(List<Uri> uris) {
2049        Iterator<Uri> iterator = uris.iterator();
2050        while (iterator.hasNext()) {
2051            final Uri uri = iterator.next();
2052            if (FileBackend.weOwnFile(getActivity(), uri)) {
2053                iterator.remove();
2054                Toast.makeText(getActivity(), R.string.security_violation_not_attaching_file, Toast.LENGTH_SHORT).show();
2055            }
2056        }
2057        return uris;
2058    }
2059
2060    private boolean showBlockSubmenu(View view) {
2061        final Jid jid = conversation.getJid();
2062        final boolean showReject = !conversation.isWithStranger() && conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2063        PopupMenu popupMenu = new PopupMenu(getActivity(), view);
2064        popupMenu.inflate(R.menu.block);
2065        popupMenu.getMenu().findItem(R.id.block_contact).setVisible(jid.getLocal() != null);
2066        popupMenu.getMenu().findItem(R.id.reject).setVisible(showReject);
2067        popupMenu.setOnMenuItemClickListener(menuItem -> {
2068            Blockable blockable;
2069            switch (menuItem.getItemId()) {
2070                case R.id.reject:
2071                    activity.xmppConnectionService.stopPresenceUpdatesTo(conversation.getContact());
2072                    updateSnackBar(conversation);
2073                    return true;
2074                case R.id.block_domain:
2075                    blockable = conversation.getAccount().getRoster().getContact(Jid.ofDomain(jid.getDomain()));
2076                    break;
2077                default:
2078                    blockable = conversation;
2079            }
2080            BlockContactDialog.show(activity, blockable);
2081            return true;
2082        });
2083        popupMenu.show();
2084        return true;
2085    }
2086
2087    private void updateSnackBar(final Conversation conversation) {
2088        final Account account = conversation.getAccount();
2089        final XmppConnection connection = account.getXmppConnection();
2090        final int mode = conversation.getMode();
2091        final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
2092        if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2093            return;
2094        }
2095        if (account.getStatus() == Account.State.DISABLED) {
2096            showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
2097        } else if (conversation.isBlocked()) {
2098            showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
2099        } else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2100            showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener, this.mLongPressBlockListener);
2101        } else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2102            showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription, this.mLongPressBlockListener);
2103        } else if (mode == Conversation.MODE_MULTI
2104                && !conversation.getMucOptions().online()
2105                && account.getStatus() == Account.State.ONLINE) {
2106            switch (conversation.getMucOptions().getError()) {
2107                case NICK_IN_USE:
2108                    showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
2109                    break;
2110                case NO_RESPONSE:
2111                    showSnackbar(R.string.joining_conference, 0, null);
2112                    break;
2113                case SERVER_NOT_FOUND:
2114                    if (conversation.receivedMessagesCount() > 0) {
2115                        showSnackbar(R.string.remote_server_not_found, R.string.try_again, joinMuc);
2116                    } else {
2117                        showSnackbar(R.string.remote_server_not_found, R.string.leave, leaveMuc);
2118                    }
2119                    break;
2120                case REMOTE_SERVER_TIMEOUT:
2121                    if (conversation.receivedMessagesCount() > 0) {
2122                        showSnackbar(R.string.remote_server_timeout, R.string.try_again, joinMuc);
2123                    } else {
2124                        showSnackbar(R.string.remote_server_timeout, R.string.leave, leaveMuc);
2125                    }
2126                    break;
2127                case PASSWORD_REQUIRED:
2128                    showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
2129                    break;
2130                case BANNED:
2131                    showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
2132                    break;
2133                case MEMBERS_ONLY:
2134                    showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
2135                    break;
2136                case RESOURCE_CONSTRAINT:
2137                    showSnackbar(R.string.conference_resource_constraint, R.string.try_again, joinMuc);
2138                    break;
2139                case KICKED:
2140                    showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
2141                    break;
2142                case UNKNOWN:
2143                    showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
2144                    break;
2145                case INVALID_NICK:
2146                    showSnackbar(R.string.invalid_muc_nick, R.string.edit, clickToMuc);
2147                case SHUTDOWN:
2148                    showSnackbar(R.string.conference_shutdown, R.string.try_again, joinMuc);
2149                    break;
2150                case DESTROYED:
2151                    showSnackbar(R.string.conference_destroyed, R.string.leave, leaveMuc);
2152                    break;
2153                case NON_ANONYMOUS:
2154                    showSnackbar(R.string.group_chat_will_make_your_jabber_id_public, R.string.join, acceptJoin);
2155                    break;
2156                default:
2157                    hideSnackbar();
2158                    break;
2159            }
2160        } else if (account.hasPendingPgpIntent(conversation)) {
2161            showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
2162        } else if (connection != null
2163                && connection.getFeatures().blocking()
2164                && conversation.countMessages() != 0
2165                && !conversation.isBlocked()
2166                && conversation.isWithStranger()) {
2167            showSnackbar(R.string.received_message_from_stranger, R.string.block, mBlockClickListener);
2168        } else {
2169            hideSnackbar();
2170        }
2171    }
2172
2173    @Override
2174    public void refresh() {
2175        if (this.binding == null) {
2176            Log.d(Config.LOGTAG, "ConversationFragment.refresh() skipped updated because view binding was null");
2177            return;
2178        }
2179        if (this.conversation != null && this.activity != null && this.activity.xmppConnectionService != null) {
2180            if (!activity.xmppConnectionService.isConversationStillOpen(this.conversation)) {
2181                activity.onConversationArchived(this.conversation);
2182                return;
2183            }
2184        }
2185        this.refresh(true);
2186    }
2187
2188    private void refresh(boolean notifyConversationRead) {
2189        synchronized (this.messageList) {
2190            if (this.conversation != null) {
2191                conversation.populateWithMessages(this.messageList);
2192                updateSnackBar(conversation);
2193                updateStatusMessages();
2194                if (conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid) != 0) {
2195                    binding.unreadCountCustomView.setVisibility(View.VISIBLE);
2196                    binding.unreadCountCustomView.setUnreadCount(conversation.getReceivedMessagesCountSinceUuid(lastMessageUuid));
2197                }
2198                this.messageListAdapter.notifyDataSetChanged();
2199                updateChatMsgHint();
2200                if (notifyConversationRead && activity != null) {
2201                    binding.messagesView.post(this::fireReadEvent);
2202                }
2203                updateSendButton();
2204                updateEditablity();
2205                activity.invalidateOptionsMenu();
2206            }
2207        }
2208    }
2209
2210    protected void messageSent() {
2211        mSendingPgpMessage.set(false);
2212        this.binding.textinput.setText("");
2213        if (conversation.setCorrectingMessage(null)) {
2214            this.binding.textinput.append(conversation.getDraftMessage());
2215            conversation.setDraftMessage(null);
2216        }
2217        storeNextMessage();
2218        updateChatMsgHint();
2219        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(activity);
2220        final boolean prefScrollToBottom = p.getBoolean("scroll_to_bottom", activity.getResources().getBoolean(R.bool.scroll_to_bottom));
2221        if (prefScrollToBottom || scrolledToBottom()) {
2222            new Handler().post(() -> {
2223                int size = messageList.size();
2224                this.binding.messagesView.setSelection(size - 1);
2225            });
2226        }
2227    }
2228
2229    private boolean storeNextMessage() {
2230        return storeNextMessage(this.binding.textinput.getText().toString());
2231    }
2232
2233    private boolean storeNextMessage(String msg) {
2234        final boolean participating = conversation.getMode() == Conversational.MODE_SINGLE || conversation.getMucOptions().participating();
2235        if (this.conversation.getStatus() != Conversation.STATUS_ARCHIVED && participating && this.conversation.setNextMessage(msg)) {
2236            this.activity.xmppConnectionService.updateConversation(this.conversation);
2237            return true;
2238        }
2239        return false;
2240    }
2241
2242    public void doneSendingPgpMessage() {
2243        mSendingPgpMessage.set(false);
2244    }
2245
2246    public long getMaxHttpUploadSize(Conversation conversation) {
2247        final XmppConnection connection = conversation.getAccount().getXmppConnection();
2248        return connection == null ? -1 : connection.getFeatures().getMaxHttpUploadSize();
2249    }
2250
2251    private void updateEditablity() {
2252        boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating() || this.conversation.getNextCounterpart() != null;
2253        this.binding.textinput.setFocusable(canWrite);
2254        this.binding.textinput.setFocusableInTouchMode(canWrite);
2255        this.binding.textSendButton.setEnabled(canWrite);
2256        this.binding.textinput.setCursorVisible(canWrite);
2257        this.binding.textinput.setEnabled(canWrite);
2258    }
2259
2260    public void updateSendButton() {
2261        boolean hasAttachments = mediaPreviewAdapter != null && mediaPreviewAdapter.hasAttachments();
2262        boolean useSendButtonToIndicateStatus = PreferenceManager.getDefaultSharedPreferences(getActivity()).getBoolean("send_button_status", getResources().getBoolean(R.bool.send_button_status));
2263        final Conversation c = this.conversation;
2264        final Presence.Status status;
2265        final String text = this.binding.textinput == null ? "" : this.binding.textinput.getText().toString();
2266        final SendButtonAction action;
2267        if (hasAttachments) {
2268            action = SendButtonAction.TEXT;
2269        } else {
2270            action = SendButtonTool.getAction(getActivity(), c, text);
2271        }
2272        if (useSendButtonToIndicateStatus && c.getAccount().getStatus() == Account.State.ONLINE) {
2273            if (activity.xmppConnectionService != null && activity.xmppConnectionService.getMessageArchiveService().isCatchingUp(c)) {
2274                status = Presence.Status.OFFLINE;
2275            } else if (c.getMode() == Conversation.MODE_SINGLE) {
2276                status = c.getContact().getShownStatus();
2277            } else {
2278                status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
2279            }
2280        } else {
2281            status = Presence.Status.OFFLINE;
2282        }
2283        this.binding.textSendButton.setTag(action);
2284        this.binding.textSendButton.setImageResource(SendButtonTool.getSendButtonImageResource(getActivity(), action, status));
2285    }
2286
2287    protected void updateDateSeparators() {
2288        synchronized (this.messageList) {
2289            DateSeparator.addAll(this.messageList);
2290        }
2291    }
2292
2293    protected void updateStatusMessages() {
2294        updateDateSeparators();
2295        synchronized (this.messageList) {
2296            if (showLoadMoreMessages(conversation)) {
2297                this.messageList.add(0, Message.createLoadMoreMessage(conversation));
2298            }
2299            if (conversation.getMode() == Conversation.MODE_SINGLE) {
2300                ChatState state = conversation.getIncomingChatState();
2301                if (state == ChatState.COMPOSING) {
2302                    this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
2303                } else if (state == ChatState.PAUSED) {
2304                    this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
2305                } else {
2306                    for (int i = this.messageList.size() - 1; i >= 0; --i) {
2307                        final Message message = this.messageList.get(i);
2308                        if (message.getType() != Message.TYPE_STATUS) {
2309                            if (message.getStatus() == Message.STATUS_RECEIVED) {
2310                                return;
2311                            } else {
2312                                if (message.getStatus() == Message.STATUS_SEND_DISPLAYED) {
2313                                    this.messageList.add(i + 1,
2314                                            Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
2315                                    return;
2316                                }
2317                            }
2318                        }
2319                    }
2320                }
2321            } else {
2322                final MucOptions mucOptions = conversation.getMucOptions();
2323                final List<MucOptions.User> allUsers = mucOptions.getUsers();
2324                final Set<ReadByMarker> addedMarkers = new HashSet<>();
2325                ChatState state = ChatState.COMPOSING;
2326                List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2327                if (users.size() == 0) {
2328                    state = ChatState.PAUSED;
2329                    users = conversation.getMucOptions().getUsersWithChatState(state, 5);
2330                }
2331                if (mucOptions.isPrivateAndNonAnonymous()) {
2332                    for (int i = this.messageList.size() - 1; i >= 0; --i) {
2333                        final Set<ReadByMarker> markersForMessage = messageList.get(i).getReadByMarkers();
2334                        final List<MucOptions.User> shownMarkers = new ArrayList<>();
2335                        for (ReadByMarker marker : markersForMessage) {
2336                            if (!ReadByMarker.contains(marker, addedMarkers)) {
2337                                addedMarkers.add(marker); //may be put outside this condition. set should do dedup anyway
2338                                MucOptions.User user = mucOptions.findUser(marker);
2339                                if (user != null && !users.contains(user)) {
2340                                    shownMarkers.add(user);
2341                                }
2342                            }
2343                        }
2344                        final ReadByMarker markerForSender = ReadByMarker.from(messageList.get(i));
2345                        final Message statusMessage;
2346                        final int size = shownMarkers.size();
2347                        if (size > 1) {
2348                            final String body;
2349                            if (size <= 4) {
2350                                body = getString(R.string.contacts_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers));
2351                            } else if (ReadByMarker.allUsersRepresented(allUsers, markersForMessage, markerForSender)) {
2352                                body = getString(R.string.everyone_has_read_up_to_this_point);
2353                            } else {
2354                                body = getString(R.string.contacts_and_n_more_have_read_up_to_this_point, UIHelper.concatNames(shownMarkers, 3), size - 3);
2355                            }
2356                            statusMessage = Message.createStatusMessage(conversation, body);
2357                            statusMessage.setCounterparts(shownMarkers);
2358                        } else if (size == 1) {
2359                            statusMessage = Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, UIHelper.getDisplayName(shownMarkers.get(0))));
2360                            statusMessage.setCounterpart(shownMarkers.get(0).getFullJid());
2361                            statusMessage.setTrueCounterpart(shownMarkers.get(0).getRealJid());
2362                        } else {
2363                            statusMessage = null;
2364                        }
2365                        if (statusMessage != null) {
2366                            this.messageList.add(i + 1, statusMessage);
2367                        }
2368                        addedMarkers.add(markerForSender);
2369                        if (ReadByMarker.allUsersRepresented(allUsers, addedMarkers)) {
2370                            break;
2371                        }
2372                    }
2373                }
2374                if (users.size() > 0) {
2375                    Message statusMessage;
2376                    if (users.size() == 1) {
2377                        MucOptions.User user = users.get(0);
2378                        int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
2379                        statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
2380                        statusMessage.setTrueCounterpart(user.getRealJid());
2381                        statusMessage.setCounterpart(user.getFullJid());
2382                    } else {
2383                        int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
2384                        statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.concatNames(users)));
2385                        statusMessage.setCounterparts(users);
2386                    }
2387                    this.messageList.add(statusMessage);
2388                }
2389
2390            }
2391        }
2392    }
2393
2394    private void stopScrolling() {
2395        long now = SystemClock.uptimeMillis();
2396        MotionEvent cancel = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
2397        binding.messagesView.dispatchTouchEvent(cancel);
2398    }
2399
2400    private boolean showLoadMoreMessages(final Conversation c) {
2401        if (activity == null || activity.xmppConnectionService == null) {
2402            return false;
2403        }
2404        final boolean mam = hasMamSupport(c) && !c.getContact().isBlocked();
2405        final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
2406        return mam && (c.getLastClearHistory().getTimestamp() != 0 || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer() && !service.queryInProgress(c)));
2407    }
2408
2409    private boolean hasMamSupport(final Conversation c) {
2410        if (c.getMode() == Conversation.MODE_SINGLE) {
2411            final XmppConnection connection = c.getAccount().getXmppConnection();
2412            return connection != null && connection.getFeatures().mam();
2413        } else {
2414            return c.getMucOptions().mamSupport();
2415        }
2416    }
2417
2418    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
2419        showSnackbar(message, action, clickListener, null);
2420    }
2421
2422    protected void showSnackbar(final int message, final int action, final OnClickListener clickListener, final View.OnLongClickListener longClickListener) {
2423        this.binding.snackbar.setVisibility(View.VISIBLE);
2424        this.binding.snackbar.setOnClickListener(null);
2425        this.binding.snackbarMessage.setText(message);
2426        this.binding.snackbarMessage.setOnClickListener(null);
2427        this.binding.snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
2428        if (action != 0) {
2429            this.binding.snackbarAction.setText(action);
2430        }
2431        this.binding.snackbarAction.setOnClickListener(clickListener);
2432        this.binding.snackbarAction.setOnLongClickListener(longClickListener);
2433    }
2434
2435    protected void hideSnackbar() {
2436        this.binding.snackbar.setVisibility(View.GONE);
2437    }
2438
2439    protected void sendMessage(Message message) {
2440        activity.xmppConnectionService.sendMessage(message);
2441        messageSent();
2442    }
2443
2444    protected void sendPgpMessage(final Message message) {
2445        final XmppConnectionService xmppService = activity.xmppConnectionService;
2446        final Contact contact = message.getConversation().getContact();
2447        if (!activity.hasPgp()) {
2448            activity.showInstallPgpDialog();
2449            return;
2450        }
2451        if (conversation.getAccount().getPgpSignature() == null) {
2452            activity.announcePgp(conversation.getAccount(), conversation, null, activity.onOpenPGPKeyPublished);
2453            return;
2454        }
2455        if (!mSendingPgpMessage.compareAndSet(false, true)) {
2456            Log.d(Config.LOGTAG, "sending pgp message already in progress");
2457        }
2458        if (conversation.getMode() == Conversation.MODE_SINGLE) {
2459            if (contact.getPgpKeyId() != 0) {
2460                xmppService.getPgpEngine().hasKey(contact,
2461                        new UiCallback<Contact>() {
2462
2463                            @Override
2464                            public void userInputRequried(PendingIntent pi, Contact contact) {
2465                                startPendingIntent(pi, REQUEST_ENCRYPT_MESSAGE);
2466                            }
2467
2468                            @Override
2469                            public void success(Contact contact) {
2470                                encryptTextMessage(message);
2471                            }
2472
2473                            @Override
2474                            public void error(int error, Contact contact) {
2475                                activity.runOnUiThread(() -> Toast.makeText(activity,
2476                                        R.string.unable_to_connect_to_keychain,
2477                                        Toast.LENGTH_SHORT
2478                                ).show());
2479                                mSendingPgpMessage.set(false);
2480                            }
2481                        });
2482
2483            } else {
2484                showNoPGPKeyDialog(false, (dialog, which) -> {
2485                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2486                    xmppService.updateConversation(conversation);
2487                    message.setEncryption(Message.ENCRYPTION_NONE);
2488                    xmppService.sendMessage(message);
2489                    messageSent();
2490                });
2491            }
2492        } else {
2493            if (conversation.getMucOptions().pgpKeysInUse()) {
2494                if (!conversation.getMucOptions().everybodyHasKeys()) {
2495                    Toast warning = Toast
2496                            .makeText(getActivity(),
2497                                    R.string.missing_public_keys,
2498                                    Toast.LENGTH_LONG);
2499                    warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
2500                    warning.show();
2501                }
2502                encryptTextMessage(message);
2503            } else {
2504                showNoPGPKeyDialog(true, (dialog, which) -> {
2505                    conversation.setNextEncryption(Message.ENCRYPTION_NONE);
2506                    message.setEncryption(Message.ENCRYPTION_NONE);
2507                    xmppService.updateConversation(conversation);
2508                    xmppService.sendMessage(message);
2509                    messageSent();
2510                });
2511            }
2512        }
2513    }
2514
2515    public void encryptTextMessage(Message message) {
2516        activity.xmppConnectionService.getPgpEngine().encrypt(message,
2517                new UiCallback<Message>() {
2518
2519                    @Override
2520                    public void userInputRequried(PendingIntent pi, Message message) {
2521                        startPendingIntent(pi, REQUEST_SEND_MESSAGE);
2522                    }
2523
2524                    @Override
2525                    public void success(Message message) {
2526                        //TODO the following two call can be made before the callback
2527                        getActivity().runOnUiThread(() -> messageSent());
2528                    }
2529
2530                    @Override
2531                    public void error(final int error, Message message) {
2532                        getActivity().runOnUiThread(() -> {
2533                            doneSendingPgpMessage();
2534                            Toast.makeText(getActivity(), error == 0 ? R.string.unable_to_connect_to_keychain : error, Toast.LENGTH_SHORT).show();
2535                        });
2536
2537                    }
2538                });
2539    }
2540
2541    public void showNoPGPKeyDialog(boolean plural, DialogInterface.OnClickListener listener) {
2542        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
2543        builder.setIconAttribute(android.R.attr.alertDialogIcon);
2544        if (plural) {
2545            builder.setTitle(getString(R.string.no_pgp_keys));
2546            builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
2547        } else {
2548            builder.setTitle(getString(R.string.no_pgp_key));
2549            builder.setMessage(getText(R.string.contact_has_no_pgp_key));
2550        }
2551        builder.setNegativeButton(getString(R.string.cancel), null);
2552        builder.setPositiveButton(getString(R.string.send_unencrypted), listener);
2553        builder.create().show();
2554    }
2555
2556    public void appendText(String text, final boolean doNotAppend) {
2557        if (text == null) {
2558            return;
2559        }
2560        final Editable editable = this.binding.textinput.getText();
2561        String previous = editable == null ? "" : editable.toString();
2562        if (doNotAppend && !TextUtils.isEmpty(previous)) {
2563            Toast.makeText(getActivity(), R.string.already_drafting_message, Toast.LENGTH_LONG).show();
2564            return;
2565        }
2566        if (UIHelper.isLastLineQuote(previous)) {
2567            text = '\n' + text;
2568        } else if (previous.length() != 0 && !Character.isWhitespace(previous.charAt(previous.length() - 1))) {
2569            text = " " + text;
2570        }
2571        this.binding.textinput.append(text);
2572    }
2573
2574    @Override
2575    public boolean onEnterPressed() {
2576        SharedPreferences p = PreferenceManager.getDefaultSharedPreferences(getActivity());
2577        final boolean enterIsSend = p.getBoolean("enter_is_send", getResources().getBoolean(R.bool.enter_is_send));
2578        if (enterIsSend) {
2579            sendMessage();
2580            return true;
2581        } else {
2582            return false;
2583        }
2584    }
2585
2586    @Override
2587    public void onTypingStarted() {
2588        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2589        if (service == null) {
2590            return;
2591        }
2592        Account.State status = conversation.getAccount().getStatus();
2593        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
2594            service.sendChatState(conversation);
2595        }
2596        updateSendButton();
2597    }
2598
2599    @Override
2600    public void onTypingStopped() {
2601        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2602        if (service == null) {
2603            return;
2604        }
2605        Account.State status = conversation.getAccount().getStatus();
2606        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
2607            service.sendChatState(conversation);
2608        }
2609    }
2610
2611    @Override
2612    public void onTextDeleted() {
2613        final XmppConnectionService service = activity == null ? null : activity.xmppConnectionService;
2614        if (service == null) {
2615            return;
2616        }
2617        Account.State status = conversation.getAccount().getStatus();
2618        if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
2619            service.sendChatState(conversation);
2620        }
2621        if (storeNextMessage()) {
2622            activity.onConversationsListItemUpdated();
2623        }
2624        updateSendButton();
2625    }
2626
2627    @Override
2628    public void onTextChanged() {
2629        if (conversation != null && conversation.getCorrectingMessage() != null) {
2630            updateSendButton();
2631        }
2632    }
2633
2634    @Override
2635    public boolean onTabPressed(boolean repeated) {
2636        if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
2637            return false;
2638        }
2639        if (repeated) {
2640            completionIndex++;
2641        } else {
2642            lastCompletionLength = 0;
2643            completionIndex = 0;
2644            final String content = this.binding.textinput.getText().toString();
2645            lastCompletionCursor = this.binding.textinput.getSelectionEnd();
2646            int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ", lastCompletionCursor - 1) + 1 : 0;
2647            firstWord = start == 0;
2648            incomplete = content.substring(start, lastCompletionCursor);
2649        }
2650        List<String> completions = new ArrayList<>();
2651        for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
2652            String name = user.getName();
2653            if (name != null && name.startsWith(incomplete)) {
2654                completions.add(name + (firstWord ? ": " : " "));
2655            }
2656        }
2657        Collections.sort(completions);
2658        if (completions.size() > completionIndex) {
2659            String completion = completions.get(completionIndex).substring(incomplete.length());
2660            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2661            this.binding.textinput.getEditableText().insert(lastCompletionCursor, completion);
2662            lastCompletionLength = completion.length();
2663        } else {
2664            completionIndex = -1;
2665            this.binding.textinput.getEditableText().delete(lastCompletionCursor, lastCompletionCursor + lastCompletionLength);
2666            lastCompletionLength = 0;
2667        }
2668        return true;
2669    }
2670
2671    private void startPendingIntent(PendingIntent pendingIntent, int requestCode) {
2672        try {
2673            getActivity().startIntentSenderForResult(pendingIntent.getIntentSender(), requestCode, null, 0, 0, 0);
2674        } catch (final SendIntentException ignored) {
2675        }
2676    }
2677
2678    @Override
2679    public void onBackendConnected() {
2680        Log.d(Config.LOGTAG, "ConversationFragment.onBackendConnected()");
2681        String uuid = pendingConversationsUuid.pop();
2682        if (uuid != null) {
2683            if (!findAndReInitByUuidOrArchive(uuid)) {
2684                return;
2685            }
2686        } else {
2687            if (!activity.xmppConnectionService.isConversationStillOpen(conversation)) {
2688                clearPending();
2689                activity.onConversationArchived(conversation);
2690                return;
2691            }
2692        }
2693        ActivityResult activityResult = postponedActivityResult.pop();
2694        if (activityResult != null) {
2695            handleActivityResult(activityResult);
2696        }
2697        clearPending();
2698    }
2699
2700    private boolean findAndReInitByUuidOrArchive(@NonNull final String uuid) {
2701        Conversation conversation = activity.xmppConnectionService.findConversationByUuid(uuid);
2702        if (conversation == null) {
2703            clearPending();
2704            activity.onConversationArchived(null);
2705            return false;
2706        }
2707        reInit(conversation);
2708        ScrollState scrollState = pendingScrollState.pop();
2709        String lastMessageUuid = pendingLastMessageUuid.pop();
2710        List<Attachment> attachments = pendingMediaPreviews.pop();
2711        if (scrollState != null) {
2712            setScrollPosition(scrollState, lastMessageUuid);
2713        }
2714        if (attachments != null && attachments.size() > 0) {
2715            Log.d(Config.LOGTAG, "had attachments on restore");
2716            mediaPreviewAdapter.addMediaPreviews(attachments);
2717            toggleInputMethod();
2718        }
2719        return true;
2720    }
2721
2722    private void clearPending() {
2723        if (postponedActivityResult.clear()) {
2724            Log.e(Config.LOGTAG, "cleared pending intent with unhandled result left");
2725        }
2726        if (pendingScrollState.clear()) {
2727            Log.e(Config.LOGTAG, "cleared scroll state");
2728        }
2729        if (pendingTakePhotoUri.clear()) {
2730            Log.e(Config.LOGTAG, "cleared pending photo uri");
2731        }
2732        if (pendingConversationsUuid.clear()) {
2733            Log.e(Config.LOGTAG,"cleared pending conversations uuid");
2734        }
2735        if (pendingMediaPreviews.clear()) {
2736            Log.e(Config.LOGTAG,"cleared pending media previews");
2737        }
2738    }
2739
2740    public Conversation getConversation() {
2741        return conversation;
2742    }
2743
2744    @Override
2745    public void onContactPictureLongClicked(View v, final Message message) {
2746        if (message.getStatus() <= Message.STATUS_RECEIVED) {
2747            final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
2748            if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
2749                final Jid cp = message.getCounterpart();
2750                if (cp == null || cp.isBareJid()) {
2751                    return;
2752                }
2753                Jid tcp = message.getTrueCounterpart();
2754                User userByRealJid = tcp != null ? conversation.getMucOptions().findOrCreateUserByRealJid(tcp, cp) : null;
2755                final User user = userByRealJid != null ? userByRealJid : conversation.getMucOptions().findUserByFullJid(cp);
2756                popupMenu.inflate(R.menu.muc_details_context);
2757                final Menu menu = popupMenu.getMenu();
2758                MucDetailsContextMenuHelper.configureMucDetailsContextMenu(activity, menu, conversation, user);
2759                popupMenu.setOnMenuItemClickListener(menuItem -> MucDetailsContextMenuHelper.onContextItemSelected(menuItem, user, conversation, activity));
2760            } else {
2761                final Contact contact = message.getContact();
2762                if (contact.isSelf()) {
2763                    activity.showQrCode(conversation.getAccount().getShareableUri());
2764                    return;
2765                }
2766                popupMenu.inflate(R.menu.one_on_one_context);
2767                popupMenu.setOnMenuItemClickListener(item -> {
2768                    switch (item.getItemId()) {
2769                        case R.id.action_contact_details:
2770                            String fingerprint;
2771                            if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2772                                fingerprint = "pgp";
2773                            } else {
2774                                fingerprint = message.getFingerprint();
2775                            }
2776                            activity.switchToContactDetails(message.getContact(), fingerprint);
2777                            break;
2778                        case R.id.action_show_qr_code:
2779                            activity.showQrCode("xmpp:" + message.getContact().getJid().asBareJid().toEscapedString());
2780                            break;
2781                    }
2782                    return true;
2783                });
2784            }
2785            popupMenu.show();
2786        } else {
2787            activity.showQrCode(conversation.getAccount().getShareableUri());
2788        }
2789    }
2790
2791    @Override
2792    public void onContactPictureClicked(Message message) {
2793        String fingerprint;
2794        if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
2795            fingerprint = "pgp";
2796        } else {
2797            fingerprint = message.getFingerprint();
2798        }
2799        final boolean received = message.getStatus() <= Message.STATUS_RECEIVED;
2800        if (received) {
2801            if (message.getConversation() instanceof Conversation && message.getConversation().getMode() == Conversation.MODE_MULTI) {
2802                Jid tcp = message.getTrueCounterpart();
2803                Jid user = message.getCounterpart();
2804                if (user != null && !user.isBareJid()) {
2805                    final MucOptions mucOptions = ((Conversation) message.getConversation()).getMucOptions();
2806                    if (mucOptions.participating() || ((Conversation) message.getConversation()).getNextCounterpart() != null) {
2807                        if (!mucOptions.isUserInRoom(user) && mucOptions.findUserByRealJid(tcp == null ? null : tcp.asBareJid()) == null) {
2808                            Toast.makeText(getActivity(), activity.getString(R.string.user_has_left_conference, user.getResource()), Toast.LENGTH_SHORT).show();
2809                        }
2810                        highlightInConference(user.getResource());
2811                    } else {
2812                        Toast.makeText(getActivity(), R.string.you_are_not_participating, Toast.LENGTH_SHORT).show();
2813                    }
2814                }
2815                return;
2816            } else {
2817                if (!message.getContact().isSelf()) {
2818                    activity.switchToContactDetails(message.getContact(), fingerprint);
2819                    return;
2820                }
2821            }
2822        }
2823        activity.switchToAccount(message.getConversation().getAccount(), fingerprint);
2824    }
2825}