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